CN108111952B - Recording method, device, terminal and computer readable storage medium - Google Patents
Recording method, device, terminal and computer readable storage medium Download PDFInfo
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- CN108111952B CN108111952B CN201711431642.7A CN201711431642A CN108111952B CN 108111952 B CN108111952 B CN 108111952B CN 201711431642 A CN201711431642 A CN 201711431642A CN 108111952 B CN108111952 B CN 108111952B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
- H04S7/30—Control circuits for electronic adaptation of the sound field
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
- H04S2400/15—Aspects of sound capture and related signal processing for recording or reproduction
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S2420/00—Techniques used stereophonic systems covered by H04S but not provided for in its groups
- H04S2420/13—Application of wave-field synthesis in stereophonic audio systems
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Abstract
The embodiment of the invention discloses a recording method, a device, a terminal and a computer readable storage medium, wherein the method comprises the following steps: detecting whether connection between a first terminal and an external microphone is established, wherein the number of built-in microphones of the first terminal is at least one, if the connection between the first terminal and the external microphone is established, acquiring sound signals respectively recorded by the external microphone and the built-in microphones, acquiring a first target sound signal conforming to a preset sound type from the sound signals recorded by the external microphone, acquiring a second target sound signal conforming to the preset sound type from the sound signals recorded by the built-in microphones, and synthesizing the first target sound signal and the second target sound signal into stereo sound. By adopting the embodiment of the invention, the stereo conforming to the preset sound type can be recorded, and the recording of the stereo is more flexible and economical.
Description
Technical Field
The present invention relates to the field of computer technologies, and in particular, to a recording method, an apparatus, a terminal, and a computer-readable storage medium.
Background
With the development of the information age, microphones are built in most terminals, such as mobile phones, tablet computers and the like, so that users can conveniently use the terminals to record. For example, when a user uses a mobile phone to make a call, the user may record important call content using a microphone of the mobile phone, or the user may record music at a concert using a microphone built in the terminal. However, when a terminal is used for recording, there are some problems: firstly, the sound recorded by the terminal has no stereo effect or only left-right stereo effect, and has no left front/left back/left up/left down stereo, and such recording can not meet the requirement of the user on stereo. Although the existing multi-microphone array recording technology can solve the problem that only left and right stereo sound is recorded by a terminal, the requirements on the morphological structure and the overall cost of the mobile phone are higher. In addition, the stereo sound recorded in the prior art contains multiple sound types in the environment, so that the stereo sound recording is not flexible enough.
Disclosure of Invention
Embodiments of the present invention provide a recording method, an apparatus, a terminal, and a computer-readable storage medium, which can record stereo sound conforming to a predetermined sound type, and the recording of stereo sound is more flexible and economical.
In a first aspect, an embodiment of the present invention provides a recording method, where the method includes:
detecting whether connection between a first terminal and an external microphone is established, wherein the number of built-in microphones of the first terminal is at least one;
if the connection between the first terminal and the external microphone is established, acquiring sound signals respectively recorded by the external microphone and the built-in microphone;
acquiring a first target sound signal which accords with a preset sound type from a sound signal recorded by an external microphone, and acquiring a second target sound signal which accords with the preset sound type from a sound signal recorded by a built-in microphone;
the first target sound signal and the second target sound signal are synthesized to be stereo sound.
Optionally, the recording method further includes:
and playing the stereo sound by using the connected audio playing equipment, so that the user of the first terminal can adjust the placing positions of the built-in microphone and the external microphone during recording according to the playing effect of the stereo sound.
Optionally, the sound signals respectively recorded by the external microphone and the built-in microphone are obtained, and the recording method further includes:
determining a recording mode adopted by a first terminal;
and outputting placement position prompt information according to the recording system, wherein the placement position prompt information is used for prompting the placement positions of the built-in microphone and the external microphone during recording.
Optionally, before obtaining the sound signals respectively recorded by the external microphone and the built-in microphone, the recording method further includes:
setting target number of sound tracks for acquiring sound signals respectively recorded by the external microphones and the built-in microphones according to the number of the external microphones for recording the sound signals and the number of the built-in microphones for recording the sound signals;
wherein, obtain the sound signal that external microphone and built-in microphone were recorded respectively, include:
and acquiring sound signals respectively recorded by the external microphone and the built-in microphone by using the target number of sound tracks.
Optionally, synthesizing the first target sound signal and the second target sound signal into stereo sound includes:
respectively carrying out noise reduction processing on the first target sound signal and the second target sound signal by using a noise reduction algorithm;
and synthesizing the first target sound signal and the second target sound signal after the noise reduction processing into stereo sound.
Optionally, the recording method includes: the external microphone is a microphone provided on an accessory device connected to the first terminal, and the number of microphones provided on the accessory device is at least one.
Optionally, the recording method includes: the external microphone is a microphone arranged on a second terminal connected with the first terminal, the number of the microphones arranged on the second terminal is at least one, the first terminal is a master recording terminal, and the second terminal is a slave recording terminal.
In a second aspect, an embodiment of the present invention provides a recording apparatus, including:
the detection unit is used for detecting whether the connection between the first terminal and the external microphone is established, and the number of the built-in microphones of the first terminal is at least one;
the acquisition unit is used for acquiring sound signals respectively recorded by the external microphone and the built-in microphone when the detection unit detects that the connection between the first terminal and the external microphone is established;
the acquisition unit is also used for acquiring a first target sound signal which accords with a preset sound type from a sound signal recorded by an external microphone and acquiring a second target sound signal which accords with the preset sound type from a sound signal recorded by a built-in microphone;
a synthesizing unit for synthesizing the first target sound signal and the second target sound signal into stereo sound.
Optionally, the recording apparatus further includes a playing unit, configured to play the stereo sound by using a connected audio playing device, so that a user of the first terminal adjusts placement positions of the built-in microphone and the external microphone during recording according to a playing effect of the stereo sound.
Optionally, the recording apparatus further includes a determining unit, configured to determine a recording system adopted by the terminal; and the output unit is used for outputting placement position prompt information according to the recording system, and the placement position prompt information is used for prompting the placement positions of the built-in microphone and the external microphone during recording.
Optionally, the recording apparatus further comprises a setting unit, wherein: the device comprises a setting unit, a processing unit and a control unit, wherein the setting unit is used for setting target quantity of sound tracks for acquiring sound signals respectively recorded by external microphones and built-in microphones according to the quantity of the external microphones for recording the sound signals and the quantity of the built-in microphones for recording the sound signals;
the specific way for the acquisition unit to acquire the sound signals respectively recorded by the external microphone and the built-in microphone is as follows:
and acquiring sound signals respectively recorded by the external microphone and the built-in microphone by using the target number of sound tracks.
Optionally, the synthesis unit is specifically configured to: respectively carrying out noise reduction processing on the first target sound signal and the second target sound signal by using a noise reduction algorithm;
and synthesizing the first target sound signal and the second target sound signal after the noise reduction processing into stereo sound.
Optionally, the external microphone connected to the apparatus is a microphone provided on an accessory device connected to the first terminal, and the number of microphones provided on the accessory device is at least one.
Optionally, the external microphone connected to the apparatus is a microphone configured on a second terminal connected to the first terminal, the number of microphones configured on the second terminal is at least one, the first terminal is a master recording terminal, and the second terminal is a slave recording terminal.
In a third aspect, an embodiment of the present invention provides a terminal, including a processor, an input device, an output device, and a memory, where the processor, the input device, the output device, and the memory are connected to each other, where the memory is used to store a computer program that supports the terminal to execute the method described above, the computer program includes program instructions, and the processor is configured to call the program instructions to execute the method described above in the first aspect.
In a fourth aspect, the present invention provides a computer-readable storage medium, in which a computer program is stored, the computer program comprising program instructions, which, when executed by a processor, cause the processor to perform the method of the first aspect.
According to the embodiment of the invention, after the connection establishment between the first terminal and the external microphone is detected, the first terminal respectively acquires the sound signals recorded by the external microphone and the built-in microphone, respectively acquires the first target sound and the second target sound which accord with the preset sound type from the acquired sound signals, and synthesizes the first target sound and the second target sound into stereo sound, so that the stereo sound which accords with the preset sound type can be recorded, and the recording of the stereo sound is more flexible and economical.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.
FIG. 1 is a schematic flow chart of a recording method according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart of another recording method according to an embodiment of the present invention;
FIG. 3 is a schematic view of a recording scene according to an embodiment of the present invention;
FIG. 4 is a schematic block diagram of a recording apparatus according to an embodiment of the present invention;
fig. 5 is a schematic block diagram of a terminal according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
Referring to fig. 1, which is a schematic flow chart of a recording method according to an embodiment of the present invention, as shown in fig. 1, the method may include:
101. and detecting whether the connection between the first terminal and the external microphone is established or not, wherein the number of the built-in microphones of the first terminal is at least one.
Specifically, the first terminal may be connected to an external microphone in a wired or wireless manner, where the first terminal may be a portable mobile terminal such as a mobile phone or a tablet computer, or may also be a non-portable terminal such as a notebook computer, and the number of the built-in microphones of the first terminal is at least one, and the microphones may be used for recording sound. The external microphone may be a separate microphone or may be a microphone provided on an accessory device connected to the first terminal, for example, a microphone provided on an earphone connected to a mobile phone terminal, or may be a microphone provided on a second terminal connected to the first terminal. The second terminal may be the same terminal device as the first terminal, or may be a terminal device having the same or similar function as the first terminal, for example, the first terminal is a mobile phone, the second terminal may also be a mobile phone, or the second terminal may be a tablet computer or a wearable device having a recording function.
102. And if the connection between the first terminal and the external microphone is established, acquiring sound signals respectively recorded by the external microphone and the built-in microphone.
Specifically, when the connection between the first terminal and the external microphone is established, the first terminal may receive, through the connection, a recording signal sent by the external microphone to the first terminal, and acquire a sound signal recorded by the external microphone, and at the same time acquire a sound signal recorded by the built-in microphone. Optionally, the first terminal may also receive the recording signal recorded by the external microphone in other manners, and acquire the sound signal and the sound signal recorded by the built-in microphone.
Optionally, before the first terminal acquires the sound signals respectively recorded by the external microphone and the built-in microphone, the first terminal may set a target number of tracks for acquiring the sound signals respectively recorded by the external microphone and the built-in microphone according to the number of the external microphones used for recording the sound signals and the number of the built-in microphones used for recording the sound signals. And the first terminal acquires the sound signals respectively recorded by the external microphone and the built-in microphone by using the target number of sound tracks. The number of sound tracks may be the same as or greater than the sum of the number of external microphones used for recording the sound signals plus the number of internal microphones used for recording the sound signals.
For example, assuming that the first terminal may be a mobile phone, the external microphone connected to the first terminal may be a microphone disposed on the headset, and before acquiring the sound signals recorded by the microphone of the mobile phone (i.e., the microphone disposed in the first terminal) and the microphone disposed on the headset, the mobile phone determines the number of microphones (i.e., the number of built-in microphones for recording the sound signals) on the mobile phone for recording the sound signals, such as 2 microphones, and the number of microphones (i.e., the number of external microphones for recording the sound signals) on the headset is 1, then the number of tracks for acquiring the sound signals in the mobile phone is set to be 3, or the number of tracks may be greater than 3. This example is one possibility of embodiments of the invention and is not intended to be exhaustive.
103. The method comprises the steps of obtaining a first target sound signal which accords with a preset sound type from a sound signal recorded by an external microphone, and obtaining a second target sound signal which accords with the preset sound type from a sound signal recorded by a built-in microphone.
Specifically, the first terminal may obtain, by using the multi-channel recording software, the recorded sound signals of the external microphone and the internal microphone, respectively, where the sound signals may include multiple types of sounds, such as a boy's sound, a girl's sound, or an animal's sound.
In order to achieve better recording effect or recording purpose, a sound type can be preset in the first terminal, a first target sound signal conforming to the preset sound type is obtained from a sound signal recorded by an external microphone in the first terminal, and a second target sound signal conforming to the preset sound type is obtained from a sound signal recorded by a built-in microphone in the first terminal. For example, the recording scene applied by the recording method of the present invention is a chorus in which a boy and a girl participate together, in order to study the voice of the girl in the chorus, the first terminal presets the voice type as the voice of the girl, then the first terminal obtains the voice of the girl from the voice signals recorded by the external microphone, obtains the voice of the girl from the voice signals recorded by the built-in microphone, and processes the two obtained voice signals of the girl by the first terminal.
Optionally, the first terminal may also preset two different sound types, which are recorded as a first preset sound type and a second preset sound type, obtain, at the first terminal, a first target sound signal conforming to the first preset sound type from a sound signal recorded by an external microphone, obtain, from a sound signal recorded by an internal microphone, a second target sound signal conforming to the second preset sound type, and synthesize the first target sound signal and the second target sound signal to obtain a rich stereo sound.
Optionally, the first terminal may also output a sound type selection prompt box at the recording start interface, where the prompt box may include multiple sound types, such as boy sound, girl sound, music sound, animal sound, and the like, and the user selects one or more sound types from the prompt box to perform stereo recording. The requirement that the user can record the stereo of the sound type meeting the requirement of the user can be met, and the recording of the stereo is more flexible and applicable.
104. The first target sound signal and the second target sound signal are synthesized to be stereo sound.
For example, assuming that the number of the internal microphones of the first terminal is one and the number of the external microphones connected to the first terminal is also one, the first terminal acquires the sound signals recorded by the external microphones and the internal microphones. And the first terminal acquires a first target sound signal which accords with a preset sound type from an external microphone, acquires a second target sound signal which accords with the preset sound type from an internal microphone, and writes the first target sound signal and the second target sound signal into left and right channels respectively to synthesize the two-channel stereo.
For another example, assuming that the number of the microphones built in the first terminal is at least two, and the number of the external microphones connected to the first terminal is at least one, the first terminal obtains the sound signals recorded by the at least one external microphone and the at least two built-in microphones, obtains at least one first target sound signal conforming to the preset sound type from the at least one external microphone, obtains at least two second target sound signals conforming to the preset sound type from the at least two built-in microphones, and synthesizes the at least one first sound target signal and the at least two second target sound signals into a stereo sound with three channels or more than three channels.
Optionally, the first terminal may perform noise reduction processing on the first target sound signal and the second target sound signal by using a noise reduction algorithm, and synthesize the first target sound signal and the second target sound signal after the noise reduction processing into stereo sound.
Optionally, in the embodiment of the present invention, the external microphone may be a microphone configured on an accessory device connected to the first terminal, and the number of the microphones configured on the accessory device is at least one; the external microphone may also be a microphone configured on a second terminal connected to the first terminal, the number of the microphones configured on the second terminal is at least one, the first terminal may be a master recording terminal, and the second terminal may be a slave recording terminal. Or the first terminal may be a slave recording terminal, and the second terminal may be a master recording terminal, and the specific manner is not limited in this embodiment. The main recording terminal is used for acquiring sound signals recorded by an external microphone and an internal microphone, acquiring a first target sound signal and a second target sound signal which accord with a preset sound type from the sound signals, and synthesizing the first target sound signal and the second target sound signal into stereo.
Optionally, the first terminal may be connected to an audio playing device, and the audio playing device may be, for example, a wired headset or a bluetooth headset. The first terminal plays the synthesized stereo sound by using the connected audio playing equipment, and a user of the first terminal can adjust the placing positions of the built-in microphone and the external microphone during recording according to the playing effect of the stereo sound. For example, the first terminal is connected to a bluetooth headset, and a stereo sound synthesized by the first terminal using the first target sound signal and the second target sound signal is played in real time by using the bluetooth headset. A user of the first terminal listens to the stereo sound through the Bluetooth headset and judges the playing effect of the stereo sound, if the effect of the stereo sound meets the requirement of the user, the user keeps the built-in microphone and the external microphone of the first terminal to record continuously at the original placement position; if the stereo effect does not meet the requirements of the user, the user adjusts the placement positions of the built-in microphone and the external microphone during recording according to the real-time stereo effect until the user is satisfied with the stereo effect.
In the embodiment of the invention, after the connection establishment between the first terminal and the external microphone is detected, the first terminal respectively acquires the sound signals recorded by the external microphone and the built-in microphone, respectively acquires the first target sound and the second target sound which accord with the preset sound type from the acquired sound signals, and synthesizes the first target sound and the second target sound into stereo sound, so that the stereo sound which accords with the preset sound type can be recorded, and the recording of the stereo sound is more flexible and economical.
Referring to fig. 2, a schematic flow chart of another recording method provided in the embodiment of the present invention is shown, where as shown in fig. 2, the method may include:
201. and detecting whether the connection between the first terminal and the external microphone is established or not, wherein the number of the built-in microphones of the first terminal is at least one.
Alternatively, the external microphone may be a microphone configured on an accessory device connected to the first terminal, for example, the first terminal may be a mobile phone, and the external microphone may be an earphone wired to the mobile phone, or may be a bluetooth earphone wirelessly connected to the mobile phone, where the number of microphones configured on the accessory device connected to the first terminal is at least one, and the microphones may be used to record sound.
Alternatively, the external microphone may be a microphone provided on a second terminal connected to the first terminal. The first terminal is a master recording terminal and the second terminal is a slave recording terminal, or the first terminal is a slave recording terminal and the second terminal can be the master recording terminal. The first terminal and the second terminal can be connected through bluetooth, Wireless Fidelity (WIFI), a data line, or other modes. Optionally, the second terminal may be a terminal device having the same type and the same function as the first terminal, for example, the first terminal may be a mobile phone, and the second terminal may also be a mobile phone, or the second terminal may also be a terminal device having the same or similar function as the first terminal but different types, for example, the first terminal may be a mobile phone, and the second terminal may be a tablet computer or a wearable device. Optionally, the microphone configured on the second terminal may be a microphone configured in the second terminal, or may refer to a microphone configured on an accessory device of the second terminal.
For example, fig. 3 is a schematic view of a recording scene according to an embodiment of the present invention, as shown in the drawing, the first terminal may be a mobile phone and the number of built-in microphones is one, the second terminal connected to the first terminal may also be a mobile phone and the number of built-in microphones is also one, and the second terminal is externally connected to an accessory device earphone, where the earphone is configured with a microphone. The first terminal determines that the first terminal is a master recording terminal, the second terminal is a slave recording terminal, and the master recording terminal, namely the first terminal, can be connected with the second terminal in a wired or wireless mode.
Alternatively, the external microphone may be a collective name of a microphone provided on an accessory connected to the first terminal and a microphone provided on the second terminal connected to the first terminal. For example, the first terminal may be assumed to be a mobile phone, the accessory device connected to the first terminal is a wired headset, and a microphone is configured on the headset. In this example, the external microphone is a generic term for one microphone on the headset and a microphone on the tablet computer.
202. And if the connection between the first terminal and the external microphone is established, determining a recording mode adopted by the first terminal, and outputting the prompt information of the placement position according to the recording mode.
Specifically, the connection between the first terminal and the external microphone may be established in various forms, for example, if the first terminal may be a mobile phone and the external microphone may be an earphone, and when the earphone is inserted into the mobile phone, it indicates that the connection between the first terminal and the external microphone is already established. For another example, assuming that the first terminal is a mobile phone and the second terminal is a mobile phone, if the first terminal and the second terminal establish a connection in a bluetooth manner, the first terminal and the second terminal are required to open bluetooth, the first terminal/the second terminal searches for a name of the second terminal/the first terminal in the searched bluetooth list, clicks the connection, and when the second terminal/the first terminal confirms the connection, it indicates that the connection between the first terminal and the second terminal is already established. The implementation of the present invention is only exemplified by two cases, and the possible implementation thereof is not exemplified.
Specifically, after the first terminal determines the recording mode, the first terminal may output a prompt message for prompting the placement positions of the user built-in microphone and the external microphone of the first terminal during recording, and after receiving the prompt message, the first terminal user sets the placement positions of the built-in microphone and the external microphone during recording according to the recording mode of the first terminal. Optionally, the first terminal may output a prompt box on the interface to prompt the first terminal user to set the positions of the internal microphone and the external microphone, or may prompt the first terminal user by voice when the first terminal user enters the recording environment.
Three recording systems for stereo sound are commonly used, namely, an A/B system, an X/Y system and an M/S system. For the a/B system, there is both an intensity difference and a time difference between sound signals from each sound source arriving at the microphone. The intensity difference is formed by the directivity pattern of the microphone and the distance of the sound source from the microphone. In this recording system, the effects of intensity and time differences on orientation are superimposed, and this system is characterized by simplicity and by less strict requirements on the matching of performance and technical specifications for the microphones in use. The defect is that a middle cavity exists, the middle is sparse or the phenomenon of middle recession exists. When music recorded in such a system is reproduced, it tends to feel that the middle sound is weak. The A/B system is widely adopted in general stereo recording, the recording is subjected to monaural compatible audition, and if obvious interference phenomenon occurs, the distance between the microphone and a sound source and the distance between the microphones can be readjusted.
The X/Y system uses identical microphones placed coaxially one next to the other. Therefore, the sound information transmitted from any sound source reaches the microphone at the same time, and no time difference exists. Therefore, this system is called a phase difference free stereo system. The system has no phase interference phenomenon when single-channel compatible listening, so the compatibility is excellent, and the system is suitable for live broadcasting.
In the M/S system, one microphone is cardioid with the main direction facing straight forward, called the M microphone, and the other is 8-shaped and placed across with the main direction aligned to the left and right. When the recorded sound signal is in monaural compatible reproduction, only the M signal is actually reproduced, and the S signal is discarded, so that the compatibility is better. The disadvantage of this system is the poor separation of the left and right channels.
203. And acquiring sound signals respectively recorded by the external microphone and the built-in microphone.
Optionally, when the connection between the first terminal and the external microphone is established, before acquiring the sound signals respectively recorded by the external microphone and the built-in microphone, the first terminal may set a target number of tracks for acquiring the sound signals respectively recorded by the external microphone and the built-in microphone according to the number of the external microphones for recording the sound signals and the number of the built-in microphones for recording the sound signals, and the first terminal acquires the sound signals respectively recorded by the external microphone and the built-in microphone by using the target number of tracks. That is, when the first terminal has determined that a connection is established with the external microphone, the first terminal determines a target number of tracks used to acquire sound signals in the first terminal, and then acquires sound signals recorded by the external microphone and the built-in microphone using tracks equal to or greater than the target number. For example, assuming that the first terminal is a mobile phone, and detecting that an accessory device earphone of the mobile phone has been inserted into the mobile phone (connection between the first terminal and an external microphone has been established), where the number of microphones built in the mobile phone is 2, and the number of microphones configured on the earphone is 1, it is determined that the number of external microphones used for recording sound signals and the number of built-in microphones used for recording sound signals are 3 in total, and the number of tracks used for acquiring sound signals recorded by the external microphones and sound signals recorded by the built-in microphones in the mobile phone set by the mobile phone may be 3, or may be greater than 3. Therefore, the first terminal can be ensured to acquire the sound signals of all directions recorded by all the microphones, the problem that the first terminal can only record a single-channel sound signal or a double-channel stereo sound at present is avoided, and the stereo recording effect can be improved. If the number of the sound signals is less than 3, sound signals recorded by at least one microphone can be missed by the first terminal, so that the difference between stereo sound synthesized by the terminal and real sound is large, and the stereo recording effect is influenced.
204. The method comprises the steps of obtaining a first target sound signal which accords with a preset sound type from a sound signal recorded by an external microphone, and obtaining a second target sound signal which accords with the preset sound type from a sound signal recorded by a built-in microphone.
Specifically, the preset sound type may be preset by the first terminal according to a recording purpose or a recording requirement. Optionally, the first terminal may also obtain, from the sound signal recorded by the external microphone, a sound signal conforming to the preset sound type as the second target sound signal, and obtain, from the sound signal recorded by the built-in microphone, a sound signal conforming to the preset sound type as the first target sound signal. Optionally, the first terminal may obtain, by using a certain recording processing software, a first target sound signal conforming to a preset sound type from a sound signal recorded by an external microphone, and obtain, by using a certain recording processing software, a second target sound signal conforming to the preset sound type from a sound signal recorded by an internal microphone, or the first terminal may obtain the first target sound signal and the second target sound signal in other manners.
205. And respectively carrying out noise reduction processing on the first target sound signal and the second target sound signal by using a noise reduction algorithm.
206. And synthesizing the first target sound signal and the second target sound signal after the noise reduction processing into stereo sound.
Optionally, the first terminal may perform noise reduction processing by using wiener filtering, a microphone array beamforming noise reduction algorithm, or another noise reduction algorithm to obtain a first target sound signal conforming to a preset sound type from a sound signal recorded by an external microphone, and obtain a second target sound signal conforming to the preset sound type from a sound signal recorded by an internal microphone, so as to ensure that noise interference in stereo sound synthesized by the first terminal is small, and a stereo effect is good.
Optionally, before the terminal synthesizes a sound signal recorded by the external microphone and at least one microphone built in the terminal into stereo sound, the noise reduction algorithm may be used to perform noise reduction processing on the sound signal, so as to reduce the influence of noise in the synthesized stereo sound and improve the recording effect.
When the connection between the first terminal and the external microphone is established, the method and the device prompt a user to set the placing positions of the internal microphone and the external microphone during recording according to the recording mode determined by the first terminal. Further, the first terminal acquires sound signals respectively recorded by the external microphone and the built-in microphone, and respectively acquires a first target sound signal conforming to a preset sound type and a second target sound signal conforming to the preset sound type from the sound signals. And the first terminal synthesizes stereo sound after performing noise reduction processing on the first target sound signal and the second target sound signal by using a noise reduction algorithm. The first terminal of the embodiment of the invention makes sufficient recording preparation before recording, including whether the connection between the first terminal and the external microphone is established, the adopted recording system, the placing positions of the built-in microphone and the external microphone during recording, and the like, can ensure that the sound signals in all directions are accurately obtained, and ensure the tone quality and the effect of the stereo sound through noise reduction processing.
Fig. 4 is a schematic block diagram of a recording apparatus according to an embodiment of the present invention. The recording apparatus of this embodiment, corresponding to the first terminal, is configured to execute the corresponding method implemented by the first terminal, where the apparatus includes: detection section 401, acquisition section 402, and synthesis section 404.
A detection unit 401, configured to detect whether a connection between a first terminal and an external microphone is established, where the number of built-in microphones of the first terminal is at least one;
an obtaining unit 402, configured to obtain, when the detecting unit 401 detects that the connection between the first terminal and the external microphone is established, sound signals respectively recorded by the external microphone and the built-in microphone;
an obtaining unit 402, configured to obtain a first target sound signal conforming to a preset sound type from a sound signal recorded by an external microphone, and obtain a second target sound signal conforming to the preset sound type from a sound signal recorded by an internal microphone;
a synthesizing unit 403 for synthesizing the first target sound signal and the second target sound signal into stereo.
Optionally, the apparatus further includes a playing unit 404, configured to play the stereo sound by using a connected audio playing device, so that a user of the first terminal adjusts the placement positions of the internal microphone and the external microphone during recording according to the playing effect of the stereo sound.
Optionally, the apparatus further includes a determining unit 405, configured to determine a recording system used by the terminal; and the output unit 406 is configured to output placement position prompt information according to the recording system, where the placement position prompt information is used to prompt placement positions of the internal microphone and the external microphone during recording.
Optionally, the sound recording apparatus further includes a setting unit 407, wherein: a setting unit 407 configured to set a target number for acquiring the sound tracks of the sound signals respectively recorded by the external microphones and the built-in microphones according to the number of the external microphones for recording the sound signals and the number of the built-in microphones for recording the sound signals. Optionally, the obtaining unit 402 is specifically configured to obtain, by using the target number of sound tracks, sound signals respectively recorded by the external microphone and the built-in microphone.
Optionally, the synthesizing unit 403 is specifically configured to perform noise reduction processing on the first target sound signal and the second target sound signal respectively by using a noise reduction algorithm, and synthesize the first target sound signal and the second target sound signal after the noise reduction processing into stereo sound.
Optionally, the external microphone connected to the apparatus is a microphone provided on an accessory device connected to the first terminal, and the number of microphones provided on the accessory device is at least one.
Optionally, the external microphone connected to the apparatus is a microphone configured on a second terminal connected to the first terminal, the number of microphones configured on the second terminal is at least one, the first terminal is a master recording terminal, and the second terminal is a slave recording terminal.
In the embodiment of the present invention, after the detection unit 401 detects that the connection between the apparatus and the external microphone is established, the acquisition unit 402 acquires the sound signals recorded by the external microphone and the internal microphone, and acquires the first target sound and the second target sound that conform to the preset sound type from the acquired sound signals, respectively, and the synthesis unit 403 synthesizes the first target sound and the second target sound into stereo sound, so that stereo sound that conform to the preset sound type can be recorded, and recording of stereo sound is more flexible and economical.
Fig. 5 is a schematic block diagram of a terminal according to an embodiment of the present invention. The terminal in this embodiment shown in the figures, which corresponds to the first terminal described above, is configured to execute the corresponding method implemented by the first terminal described above, and the terminal may include: one or more processors 501; one or more input devices 502, one or more output devices 503, and memory 505. The processor 501, the input device 502, the output device 503, and the memory 505 are connected by a bus 505. The memory 502 is used to store computer programs comprising program instructions, and the processor 501 is used to execute the program instructions stored by the memory 502. Wherein the processor 501 is configured to invoke program instructions to perform:
detecting whether connection between a first terminal and an external microphone is established, wherein the number of built-in microphones of the first terminal is at least one;
if the connection between the first terminal and the external microphone is established, acquiring sound signals respectively recorded by the external microphone and the built-in microphone;
acquiring a first target sound signal which accords with a preset sound type from a sound signal recorded by an external microphone, and acquiring a second target sound signal which accords with the preset sound type from a sound signal recorded by a built-in microphone;
the first target sound signal and the second target sound signal are synthesized to be stereo sound.
Optionally, the processor 501 is further configured to:
and playing the stereo sound by using the connected audio playing equipment, so that the user of the first terminal can adjust the placing positions of the built-in microphone and the external microphone during recording according to the playing effect of the stereo sound.
Optionally, the processor 501 is further configured to obtain sound signals respectively recorded by an external microphone and a built-in microphone:
determining a recording mode adopted by a first terminal;
and according to the recording system, outputting placement position prompt information according to the recording system, wherein the placement position prompt information is used for prompting the placement positions of the built-in microphone and the external microphone during recording.
Optionally, before obtaining the sound signals respectively recorded by the external microphone and the built-in microphone, the processor 501 is further configured to:
setting target number of sound tracks for acquiring sound signals respectively recorded by the external microphones and the built-in microphones according to the number of the external microphones for recording the sound signals and the number of the built-in microphones for recording the sound signals;
wherein, the sound signals respectively recorded by the external microphone and the built-in microphone are obtained, and the processor 501 is specifically configured to:
and acquiring sound signals respectively recorded by the external microphone and the built-in microphone by using the target number of sound tracks.
Optionally, the first target sound signal and the second target sound signal are synthesized into a stereo sound, and the processor 501 is specifically configured to:
respectively carrying out noise reduction processing on the first target sound signal and the second target sound signal by using a noise reduction algorithm;
and synthesizing the first target sound signal and the second target sound signal after the noise reduction processing into stereo sound.
Optionally, the external microphone of the first terminal is a microphone disposed on an accessory device connected to the first terminal, and the number of microphones disposed on the accessory device is at least one.
Optionally, the external microphone of the first terminal is a microphone configured on a second terminal connected to the first terminal, the number of microphones configured on the second terminal is at least one, the first terminal is a master recording terminal, and the second terminal is a slave recording terminal.
It should be understood that, in the embodiment of the present invention, the Processor 501 may be a Central Processing Unit (CPU), and the Processor may also be other general processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components, and the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The input device 502 may include a touch pad, a fingerprint sensor (for collecting fingerprint information of a user and direction information of the fingerprint), a microphone, etc., and the output device 503 may include a display (L CD, etc.), a speaker, etc.
The memory 505 may include both read-only memory and random access memory and provides instructions and data to the processor 501. A portion of memory 505 may also include non-volatile random access memory. For example, memory 505 may also store information of the device type.
In a specific implementation, the processor 501, the input device 502, and the output device 503 described in this embodiment of the present invention may execute the implementation manners described in fig. 1 and fig. 2 of the recording method provided in this embodiment of the present invention, and may also execute the implementation manners of the recording apparatus described in this embodiment of the present invention, which is not described herein again.
In an embodiment of the present invention, there is provided a computer-readable storage medium storing a computer program, the computer program comprising program instructions that when executed by a processor implement:
detecting whether connection between a first terminal and an external microphone is established, wherein the number of built-in microphones of the first terminal is at least one;
if the connection between the first terminal and the external microphone is established, acquiring sound signals respectively recorded by the external microphone and the built-in microphone;
acquiring a first target sound signal which accords with a preset sound type from a sound signal recorded by an external microphone, and acquiring a second target sound signal which accords with the preset sound type from a sound signal recorded by a built-in microphone;
the first target sound signal and the second target sound signal are synthesized to be stereo sound.
Optionally, the program instructions when executed by the processor further implement:
and playing the stereo sound by using the connected audio playing equipment, so that the user of the first terminal can adjust the placing positions of the built-in microphone and the external microphone during recording according to the playing effect of the stereo sound.
Optionally, the method further includes obtaining sound signals respectively recorded by the external microphone and the built-in microphone, and when executed by the processor, the program instructions further implement:
determining a recording mode adopted by a first terminal;
and according to the recording system, outputting placement position prompt information according to the recording system, wherein the placement position prompt information is used for prompting the placement positions of the built-in microphone and the external microphone during recording.
Optionally, before obtaining the sound signals respectively recorded by the external microphone and the built-in microphone, the program instructions when executed by the processor further implement:
setting target number of sound tracks for acquiring sound signals respectively recorded by the external microphones and the built-in microphones according to the number of the external microphones for recording the sound signals and the number of the built-in microphones for recording the sound signals;
wherein, obtain the sound signal that external microphone and built-in microphone recorded respectively, the program instruction realizes specifically by the treater execution:
and acquiring sound signals respectively recorded by the external microphone and the built-in microphone by using the target number of sound tracks.
Optionally, the first target sound signal and the second target sound signal are synthesized into a stereo sound, and the program instructions when executed by the processor implement:
respectively carrying out noise reduction processing on the first target sound signal and the second target sound signal by using a noise reduction algorithm;
and synthesizing the first target sound signal and the second target sound signal after the noise reduction processing into stereo sound.
Optionally, the external microphone of the first terminal is a microphone disposed on an accessory device connected to the first terminal, and the number of microphones disposed on the accessory device is at least one.
Optionally, the external microphone of the first terminal is a microphone configured on a second terminal connected to the first terminal, the number of microphones configured on the second terminal is at least one, the first terminal is a master recording terminal, and the second terminal is a slave recording terminal.
The computer readable storage medium may be an internal storage unit of the terminal of any of the foregoing embodiments, for example, a hard disk or a memory of the terminal. The computer readable storage medium may also be an external storage device of the terminal, such as a plug-in hard disk provided on the terminal, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like. Further, the computer-readable storage medium may also include both an internal storage unit and an external storage device of the terminal. The computer-readable storage medium is used for storing a computer program and other programs and data required by the terminal. The computer-readable storage medium may also be used to temporarily store data that has been output or is to be output.
While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A method of recording a sound, comprising:
detecting whether connection between a first terminal and an external microphone is established, wherein the number of built-in microphones of the first terminal is at least one;
if the connection between the first terminal and the external microphone is established, acquiring sound signals respectively recorded by the external microphone and the built-in microphone;
acquiring a first target sound signal which accords with a preset sound type from sound signals recorded by the external microphone, and acquiring a second target sound signal which accords with the preset sound type from sound signals recorded by the built-in microphone;
synthesizing the first target sound signal and the second target sound signal into stereo sound;
wherein the method further comprises: and outputting a sound type selection prompt box on a recording starting interface, and acquiring the selected preset sound type in the sound type selection prompt box.
2. The method of claim 1, further comprising:
and playing the stereo by using connected audio playing equipment, so that a user of the first terminal can adjust the placing positions of the built-in microphone and the external microphone during recording according to the playing effect of the stereo.
3. The method according to claim 1 or 2, wherein before obtaining the sound signals respectively recorded by the external microphone and the built-in microphone, the method further comprises:
determining a recording mode adopted by the first terminal;
and outputting placement position prompt information according to the recording system, wherein the placement position prompt information is used for prompting the placement positions of the built-in microphone and the external microphone during recording.
4. The method according to claim 1 or 2, wherein before obtaining the sound signals respectively recorded by the external microphone and the built-in microphone, the method further comprises:
setting a target number of tracks for acquiring the sound signals respectively recorded by the external microphones and the built-in microphones according to the number of the external microphones for recording the sound signals and the number of the built-in microphones for recording the sound signals;
wherein, the acquiring the sound signals respectively recorded by the external microphone and the built-in microphone comprises:
and acquiring sound signals respectively recorded by the external microphone and the built-in microphone by using the target number of sound tracks.
5. The method according to claim 1 or 2, wherein said synthesizing the first target sound signal and the second target sound signal into stereo comprises:
respectively carrying out noise reduction processing on the first target sound signal and the second target sound signal by using a noise reduction algorithm;
and synthesizing the first target sound signal and the second target sound signal after the noise reduction processing into stereo sound.
6. The method of claim 1,
the external microphone is a microphone configured on an accessory device connected with the first terminal, and the number of the microphones configured on the accessory device is at least one.
7. The method of claim 1,
the external microphone is a microphone configured on a second terminal connected with the first terminal, the number of the microphones configured on the second terminal is at least one, the first terminal is a master recording terminal, and the second terminal is a slave recording terminal.
8. A sound recording apparatus, comprising:
the device comprises a detection unit, a processing unit and a processing unit, wherein the detection unit is used for detecting whether the connection between a first terminal and an external microphone is established, and the number of the built-in microphones of the first terminal is at least one;
an acquisition unit, configured to acquire, when the detection unit detects that the connection between the first terminal and the external microphone is established, sound signals respectively recorded by the external microphone and the built-in microphone;
the acquisition unit is further configured to acquire a first target sound signal conforming to a preset sound type from the sound signals recorded by the external microphone, and acquire a second target sound signal conforming to the preset sound type from the sound signals recorded by the built-in microphone;
a synthesizing unit configured to synthesize the first target sound signal and the second target sound signal into stereo sound;
wherein the obtaining unit is further configured to: and outputting a sound type selection prompt box on a recording starting interface, and acquiring the selected preset sound type in the sound type selection prompt box.
9. A terminal, comprising a processor, an input device, an output device and a memory, the processor, the input device, the output device and the memory being interconnected, wherein the memory is configured to store a computer program comprising program instructions, the processor being configured to invoke the program instructions to perform the method according to any of claims 1-7.
10. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program comprising program instructions that, when executed by a processor, cause the processor to carry out the method according to any one of claims 1-7.
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| CN109360588B (en) * | 2018-09-11 | 2020-08-04 | 广州荔支网络技术有限公司 | Audio processing method and device based on mobile equipment |
| CN109215688B (en) * | 2018-10-10 | 2020-12-22 | 麦片科技（深圳）有限公司 | Same-scene audio processing method, device, computer readable storage medium and system |
| CN109982230B (en) * | 2019-03-29 | 2022-01-14 | 努比亚技术有限公司 | Method, system, mobile terminal and storage medium for enhancing microphone pickup effect |
| CN113395623B (en) * | 2020-03-13 | 2022-10-04 | 华为技术有限公司 | Recording method and recording system of true wireless earphone |
| CN111970626B (en) * | 2020-08-28 | 2022-03-22 | Oppo广东移动通信有限公司 | Recording method and apparatus, recording system, and storage medium |
| CN111970625B (en) * | 2020-08-28 | 2022-03-22 | Oppo广东移动通信有限公司 | Recording method and device, terminal and storage medium |
| CN112954548B (en) * | 2021-02-22 | 2022-09-02 | 惠州Tcl移动通信有限公司 | Method and device for combining sound collected by terminal microphone and headset |
| CN114466283A (en) * | 2022-02-08 | 2022-05-10 | 维沃移动通信有限公司 | Audio acquisition method and device, electronic equipment and peripheral component method |
| CN117133305B (en) * | 2023-04-27 | 2024-08-06 | 荣耀终端有限公司 | Stereo noise reduction method, apparatus and storage medium |
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Effective date of registration: 20221222 Address after: 201203 1st floor, building 1, Lane 36, Xuelin Road, Pudong New Area Free Trade Zone, Shanghai Patentee after: SHANGHAI TRANSSION INFORMATION TECHNOLOGY Ltd. Address before: Room 922 / 926, block a, No.1 Lane 399, shengxia Road, Pudong New Area pilot Free Trade Zone, Shanghai 201203 Patentee before: SHANGHAI SPREADRISE COMMUNICATION TECHNOLOGY Ltd. |