CN105872253A - Live broadcast sound processing method and mobile terminal - Google Patents
Live broadcast sound processing method and mobile terminal Download PDFInfo
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- CN105872253A CN105872253A CN201610377817.XA CN201610377817A CN105872253A CN 105872253 A CN105872253 A CN 105872253A CN 201610377817 A CN201610377817 A CN 201610377817A CN 105872253 A CN105872253 A CN 105872253A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
- H04M1/72442—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality for playing music files
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Abstract
The embodiment of the invention discloses a live broadcast sound processing method and a mobile terminal. The live broadcast sound processing method comprises the steps that an audio file selected by a user is acquired; the audio file is decoded to obtain an audio signal; a speech signal of the user is collected; the audio signal and the speech signal are subjected to audio mixing and broadcast. According to the live broadcast sound processing method and the mobile terminal, the live broadcast atmosphere can be enriched without needing other loudspeaking equipment, and the quality of a finally-output signal can be improved.
Description
Technical field
The present embodiments relate to communication technical field, be specifically related to a kind of live sound processing method and movement
Terminal.
Background technology
In recent years, along with the development of the mobile terminal technology such as mobile phone, mobile terminal becomes increasingly intelligence,
The function that mobile terminal is provided also gets more and more, such as direct broadcast function, along with being continuously increased of social demand,
This function live is more and more popular with users.
The live atmosphere of horn of plenty, it is sometimes desirable to add some background musics in live process, in prior art,
For realizing this purpose, it usually needs put equipment (such as personal computer) by outside other, implement
Process is as follows: play background music, by the mike of mobile terminal by other outer speakers putting equipment
Gather background music and the sound of main broadcaster simultaneously, then the two mixing is play.Owing to needs are by outside other
Equipment of putting obtains background music, and this mode implements can be very inconvenient, and enforcement place is the most limited,
And gathering background music by mike simultaneously, radio reception effectiveness comparison is poor, easily collects environmental noise, leads
The signal quality causing final output is very poor.
Summary of the invention
In view of this, embodiments provide a kind of live sound processing method and mobile terminal, be not required to
Want to put equipment outside other and can enrich live atmosphere, it is possible to increase the quality of final output signal.
The live sound processing method that the embodiment of the present invention provides includes:
Obtain the audio file that user selects；
Decode described audio file and obtain audio signal；
Gather the voice signal of described user；
Described audio signal is carried out audio mixing with described voice signal and plays.
The mobile terminal that the embodiment of the present invention provides includes:
Acquiring unit, for obtaining the audio file that user selects；
Decoding unit, is used for decoding described audio file and obtains audio signal；
Collecting unit, for gathering the voice signal of described user；
Audio mixing broadcast unit, for carrying out audio mixing by described audio signal with described voice signal and playing.
In the embodiment of the present invention, mobile terminal can obtain the audio file that user selects, and decodes this audio frequency literary composition
Part obtains audio signal, thus is no longer necessary to put device plays audio signal by outside other, is also no longer necessary to
The mike using mobile terminal gathers this audio signal, after obtaining audio signal, can adjust movement
The mike emphasis of terminal gathers the voice signal of user, then by acquired audio signal with gathered
The voice signal of user carries out audio mixing and plays, it is thus possible to improve the quality of final output signal.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, institute in embodiment being described below
The accompanying drawing used is needed to be briefly described, it should be apparent that, the accompanying drawing in describing below is only the present invention
Some embodiments, for those skilled in the art, on the premise of not paying creative work, also
Other accompanying drawing can be obtained according to these accompanying drawings.
Fig. 1 is a scene schematic diagram of the live sound processing method that the embodiment of the present invention is provided；
Fig. 2 is a schematic flow sheet of the live sound processing method that the embodiment of the present invention is provided；
Fig. 3 a is another schematic flow sheet of the live sound processing method that the embodiment of the present invention is provided；
Fig. 3 b is the schematic flow sheet that the present invention decodes the method for audio file；
The effect plays figure of the provided background music of Fig. 4 a to 4d embodiment of the present invention；
The effect plays figure of the audio that Fig. 5 a to 5d embodiment of the present invention is provided；
Fig. 6 is a structural representation of the mobile terminal that the embodiment of the present invention is provided；
Fig. 7 is another structural representation of the mobile terminal that the embodiment of the present invention is provided.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clearly
Chu, be fully described by, it is clear that described embodiment be only a part of embodiment of the present invention rather than
Whole embodiments.Based on the embodiment in the present invention, those skilled in the art are not making creative labor
The every other embodiment obtained under dynamic premise, broadly falls into the scope of protection of the invention.
Due in prior art, when wanting to add other audio signal during live to enrich live atmosphere
Time, need by other outer equipment of putting, and the signal quality of final output is the most undesirable, thus the present invention is real
Execute example and provide a kind of live sound processing method and mobile terminal, it is not necessary to put equipment by outside other
Abundant live atmosphere, and the quality of final output signal can be improved.The mobile terminal tool of the embodiment of the present invention
Body can be mobile phone, panel computer, notebook computer etc..As shown in Figure 1a, mobile terminal can obtain use
The audio file that family selects, decodes described audio file and obtains audio signal, and this audio signal is for abundant straight
Broadcast atmosphere, then the voice signal of the user of collection carried out audio mixing with described audio signal and play, whole
During obtain this audio signal by decoding this audio file, because of without other outer put equipment can be rich
Rich live atmosphere, and the quality of final output signal can be improved.
To be described in detail respectively below, the description sequencing of each embodiment is not intended that tool below
Body implements the restriction of sequencing.
Embodiment one
As in figure 2 it is shown, the live sound processing method of the present embodiment comprises the following steps:
The audio file that step 201, acquisition user select；
In implementing, user can enter live interface by the live software on mobile terminal, clicks on straight
Broadcast the atmosphere manager at interface with mark (the such as audio file at the audio file selected by correspondence position input
Title), mobile terminal can according to user input obtain user select audio file.
Step 202, decode described audio file and obtain audio signal；
Described audio signal is for live atmosphere abundant during live.
Step 203, gather the voice signal of described user；
In implementing, it is possible to use the mike of mobile terminal gathers the voice signal of user, the present embodiment
In, owing to mike has only to gather the voice signal of user, it is not necessary to gather other audio signals, therefore
The position that can adjust mike makes it be directed at user, or adjusts the pattern (such as noise reduction mode) of mike
Make the voice signal of its emphasis collection user, to ensure to collect high-quality voice signal.
Step 204, described audio signal is carried out audio mixing with described voice signal and plays.
In implementing, step 201,202 can perform with step 203, i.e. audio signal and voice simultaneously
Signal can synchronize to obtain.The audio signal that audio mixing will obtain is overlapped behaviour with the voice signal of user
Make, and anti-stop signal overflows, in the present embodiment, audio signal and described voice signal can be carried out in real time
Audio mixing.
In the present embodiment, mobile terminal can obtain the audio file that user selects, and decodes this audio file and obtains
To audio signal, thus it is no longer necessary to put device plays audio signal by outside other, is also no longer necessary to use
The mike of mobile terminal gathers this audio signal, after obtaining audio signal, can adjust mobile terminal
Mike emphasis gather the voice signal of user, then by acquired audio signal and the user that gathered
Voice signal carry out audio mixing and play, it is thus possible to improve final output signal quality.
Embodiment two
The method that embodiment one describes, the present embodiment will be described in further detail, as shown in Figure 3 a, this
The live sound processing method of embodiment comprises the steps:
The audio file that step 301, acquisition user select；
In implementing, user can enter live interface by the live software on mobile terminal, clicks on straight
Broadcast the atmosphere manager at interface with mark (the such as audio file at the audio file selected by correspondence position input
Title), mobile terminal can according to user input obtain user select audio file.
Mobile terminal can connect network according to the input of user and obtain this audio file from server, and if
When the locally stored middle storage of mobile terminal has this audio file, mobile terminal can also be deposited from this locality of self
Storage obtains this audio file, to realize the quick obtaining of audio file.
The audio file that user selects can be background music (such as some song, light music etc.) file,
Or the audio file that user selects can be audio (such as drip sound, applaud, jump sound etc.) file.
Step 302, decode described audio file and obtain audio signal；
Specifically, coding/decoding method can comprise the steps: as shown in Figure 3 b
Step 3021, resolve described audio file with obtain described audio file sampling parameter；
Wherein, the sampling parameter of described audio file includes sample rate, sampling precision and sound channel mode, these
Parameter is the major parameter decoded by audio file.
Employing rate, also referred to as sample rate or sample frequency, define the number of samples in the unit interval,
It represents with hertz (Hz), and for acoustical signal, sample rate can be used to describe the sound of audio files
Matter, tone, be to weigh sound card, the quality standard of audio files.Sample rate is the highest, during the interval i.e. sampled
Between the shortest, then the sample data obtained within the unit interval is the most, and the expression to signal waveform is the most accurate.
Having certain relation between sample rate and original signal frequency, according to Nyquist theorem, only sample rate is high
When the twice of primary signal highest frequency, the signals revivification that digital signal could be represented becomes original letter
Number.
Sampling precision, the precision of its reflection voice metric wave-shape amplitude, with position (Bit) as unit, such as 8,
16.8 signals that sound wave can be divided into 256 grades, 16 can be divided into 65 same ripple, 536 grades
Signal.Such as, when sample sound represents with 16 (2 byte), the sample sound value recorded is 0～65535
Scope in, its precision is exactly the 1/65536 of input signal.The size of sample figure place has influence on sound
Quality, figure place is the most, and the quality of sound is the highest, and the memory space needed is the most；Figure place is the fewest, sound
The quality of sound is the lowest, and the memory space of needs is the fewest.
Sound channel mode, being divided into monophonic or stereo mode, monophonic value is 1, and double track value is 2.
Step 3022, calculate the encoder bit rate of described audio file；
Code check is also called bit rate, code check=sample rate * sampling precision * sound channel mode, and code check is the highest, transmits
Data the biggest, tonequality is the best.
Step 3023, according to described encoder bit rate decode described audio file obtain described audio signal.
Decoding is the process contrary with coding, decodes described audio file according to encoder bit rate i.e. available described
Audio signal.
In implementing, audio file can be decoded into pulse code modulation
The signal of (Pulse-code modulation, PCM) form, it is also possible to audio file is decoded into waveform
The signal of (wave, WAV) form, is not specifically limited herein.Decoding background music file can obtain
To background music signal, decoding audio effect file can obtain sound signal, the background music signal that decoding obtains
Or sound signal is for live atmosphere abundant during live.
Step 303, gather the voice signal of described user；
In the present embodiment, can obtain, before gathering the voice signal of user, the audio file that user selects
It is decoded in advance, caches in storage after decoding, wait the triggering of the voice signal of user.When collecting
During the voice signal of user, from caching, directly obtain audio signal carry out audio mixing, to improve audio mixing speed.
In implementing, it is possible to use the mike of mobile terminal gathers the voice signal of user, the present embodiment
In, owing to mike has only to gather the voice signal of user, it is not necessary to gather other audio signals, therefore
The position that can adjust mike makes it be directed at user, or adjusts the pattern (such as noise reduction mode) of mike
Make the voice signal of its emphasis collection user, to ensure to collect high-quality voice signal.
In the present embodiment, mike can be set according to the sampling parameter of the audio file that step 3021 obtains
Gather the sampling parameter of the voice signal of user, according to the sampling parameter arranged, obtain the language from mike
Tone signal, so that described audio signal and described voice signal have identical sampling parameter, in order to
Follow-up carry out stereo process.
Certainly, the sampling parameter of described voice signal can not also phase with the sampling parameter of described audio signal
With, if it is not the same, then follow-up carry out stereo process before, need to described audio signal or institute's predicate
Tone signal carries out sampling parameter conversion, so that the two sampling parameter is identical.
The volume of described audio signal is adjusted by step 304, change according to volume button state；
In implementing, the volume of background music, audio etc. can be controlled the volume with mike and control solely
Erect meter, with realize background music, audio volume adjust do not affect mike track record.At background sound
In the playing process of pleasure or audio, user can touch the volume of background music or audio according to the actual requirements and press
Button, terminal according to the change of the volume button state of background music or audio to background music or the volume of audio
It is adjusted, when heightening volume, volume can be gradually increased according to presetting step-length of fading in, turn down volume
Time, volume can be gradually reduced according to presetting step-length of fading out, with realize volume switch between different conditions time,
Having effect of being fade-in fade-out to do transition, presetting fades in step-length and preset step-length of fading out can set according to actual needs,
The two concrete value can be the same or different.
Step 305, described audio signal or described voice signal are carried out the change of voice, filtering, noise reduction process；
In implementing, the instrument such as voice changer, sound filter can be used described audio signal or institute's predicate
Tone signal carries out the change of voice (such as changing the tone color of sound, tone etc.), filtering (filters outside default frequency range
Signal), noise reduction process (eliminate digital noise etc.), to obtain higher-quality audio signal or voice letter
Number.
Step 306, described audio signal is carried out audio mixing with described voice signal and plays.
Audio mixing will the sound in multiple source, be integrated into a three-dimensional track (Stereo) or single-tone track
(Mono) output in, specifically, can carry out audio mixing to use the following two kinds mode:
The first, first adjust described audio signal and the amplitude of described voice signal, such as, believed by described audio frequency
Number amplitude be adjusted to the first amplitude threshold, the amplitude of described voice signal is adjusted to the second amplitude threshold,
First amplitude threshold and the second amplitude threshold can be identical or different, if it is desired to prominent described audio signal,
Then the first amplitude threshold can be more than the second amplitude threshold, and if it is intended to prominent described voice signal, then and the
Two amplitude thresholds can be more than the first amplitude threshold, it addition, do not spill over for signal after ensureing audio mixing, Ke Yigen
According to overflowing amplitude limit value, the first amplitude threshold and the second amplitude threshold are set；Next after amplitude being adjusted
Described audio signal and described voice signal are superposed to a road, play the signal being superposed to a road.
The second, is directly superposed to a road by described audio signal and described voice signal, it is judged that after superposition
Whether signal overflows, if overflowing, the most not doing other and processing；If there occurs spilling, the most permissible
The signal overflowed after superposition is carried out attenuation processing, the decay factor that such as calculation overflow signal value is corresponding, root
According to this decay factor, spill over is carried out attenuation processing, finally play the signal being superposed to a road.
Illustrate separately below when audio signal be background music and when audio signal is audio the present invention real
Execute the live sound processing method that example provides.
It is when the audio signal selected by user is background music refering to Fig. 4 a to Fig. 4 d, Fig. 4 a to Fig. 4 d
Effect plays figure.Live interface shown in Fig. 4 a, can arrange atmosphere manager, user at this live interface
The atmosphere manager on live interface can be clicked on and enter atmosphere administration interface, atmosphere administration interface such as Fig. 4 b
Shown in, including background music option and audio option, user determines the type of the audio file of selection, when with
After family selects background music option, interface can show such as Fig. 4 c, and user can input the background music wanted
The title (such as " When the Rain Comes ") of file, the background music file needed for acquisition for mobile terminal user；Specifically
In realization, mobile terminal can connect network according to the input of user and obtain this background music literary composition from server
Part, and if time the locally stored middle storage of mobile terminal has this background music file, mobile terminal can also
From this background music file of locally stored middle acquisition of self, to realize the quick obtaining of background music file.
After background music file obtains, it is saved in the listed files that background music option is corresponding.At mobile terminal
After obtaining this background music file, user can click on this background music file of broadcasting, and mobile terminal decodes
This background music file obtains background music, specifically background music file can be decoded into pulse code modulation
The signal of (Pulse-code modulation, PCM) form, the broadcast interface of background music can be such as Fig. 4 d
Shown in.
Meanwhile mobile terminal can utilize the voice signal of mike collection user, uses and presets instrument pair
Described background music or described voice signal carry out Audio Processing, and described default instrument includes voice changer and sound
Filter, to obtain high-quality background music signal or voice signal, by this background music signal and this voice
Signal carries out audio mixing and plays.
Without in advance background music file decoding being cached, but solve in real time during live
Code, then can be by background music file segmentation decoding.Owing to decoding background music Documents Comparison is time-consuming, such as
Background music file uses mp3 file, the completely mp3 file of three minutes durations of decoding to need three seconds left sides
The right side, if after all having been decoded by background music file, then carries out the broadcasting of background music, will use
Family is felt longer time delay, therefore, it can background music file is carried out segmentation decoding, first decodes
To the background music signal of presetting length, as presetting length is set to 12800 bytes, decode 12800 bytes and lead to
Often have only to spend a few tens of milliseconds, after the background music signal of decoding presetting length, will the voice of user
Signal carries out audio mixing with background music signal and plays.The speed playing music is generally slower than decoding speed, because of
This just can play with decoding limit, limit after first decoding the background music signal obtaining presetting length, this addresses the problem
User feels the problem of relatively long delay, and user can be the most permissible after selecting background music playing function
Hear the background music of broadcasting.
In playing process, as shown in figure 4d, can be with display background music progress, it is also possible to suspend the back of the body
The broadcasting of scape music.It addition, user can touch the volume button of background music according to the actual requirements, mobile
The volume of described background music is adjusted by terminal according to the change of volume button state, is heightening volume
Time, volume can be gradually increased according to presetting step-length of fading in, when turning down volume, can fade out according to presetting
Step-length is gradually reduced volume, during so that volume switches between different conditions, has effect of being fade-in fade-out to do transition,
The volume of background music controls can be independent with the control of the volume of mike, to realize background music volume
Adjustment do not affect mike track record.
When user wants to delete certain background music file, atmosphere manager can be clicked on, enter background sound
Happy option, checks all background music file in list, deletes the required background music file deleted i.e.
Can.
Fig. 5 a to Fig. 5 d is when the audio signal selected by user is effect plays figure during audio.Shown in Fig. 5 a
Live interface, atmosphere manager can be set at this live interface, user can click on live interface
Atmosphere manager enter atmosphere administration interface, atmosphere administration interface as shown in Figure 5 b, including background music option
With audio option, user determines the type of the audio file of selection, after user selects audio option, and boundary
Face can show such as Fig. 5 c, including mobile terminal according to operation recommend from server or locally stored screen
Fine work audio effect file, user can add selected audio effect file for conventional audio effect file, such as, add
Life award, jump sound, eating gold coin etc. for conventional audio effect file, the audio that user is added by mobile terminal is civilian
Part is saved in the listed files that audio option is corresponding, and user can click on the audio effect file needed for broadcasting, moves
Dynamic this audio effect file of decoding terminals obtains sound signal, audio effect file specifically can be decoded into pulse code and adjust
The signal of system (Pulse-code modulation, PCM) form, the broadcast interface of audio can be such as Fig. 5 d institute
Show.
Meanwhile mobile terminal can utilize the voice signal of mike collection user, uses and presets instrument pair
Described audio or described voice signal carry out Audio Processing, and described default instrument includes voice changer and sound filter
Mirror, to obtain high-quality sound signal or voice signal, mixes this sound signal with this voice signal
Sound is also play.
In playing process, as fig 5d, audio playing progress rate can be shown, it is also possible to suspend audio
Play.It addition, user can touch the volume button of audio according to the actual requirements, mobile terminal is according to volume
The volume of described audio is adjusted by the change of button state, when heightening volume, and can be light according to presetting
Enter step-length and be gradually increased volume, when turning down volume, volume can be gradually reduced according to presetting step-length of fading out,
During so that volume switches between different conditions, have effect of being fade-in fade-out to do transition, the volume of audio control with
The volume of mike controls can be independent, does not affect the record of mike track realizing the adjustment of audio volume
System.
When user wants to cancel certain audio effect file, atmosphere manager can be clicked on, enter audio option,
Check all audio effect files in list, click on and cancel the audio effect file that can cancel correspondence.
It should be noted that above design sketch is only schematic presentation, it is not intended that effect plays of the present invention
The final restriction of mode.
I.e. in the present embodiment, when user wants to use background music or audio to enrich live atmosphere, permissible
In the atmosphere manager at live interface, directly select required audio file, click on and play, audio frequency literary composition
The acquisition of part and decoding are transparent for user, do not affect whole live process, whole live during,
User only need to operate mobile terminal, it is not necessary to operates and puts equipment outside other.
In the present embodiment, mobile terminal can obtain the audio file that user selects, and decodes this audio file and obtains
To audio signal, thus it is no longer necessary to put device plays audio signal by outside other, is also no longer necessary to use
The mike of mobile terminal gathers this audio signal, after obtaining audio signal, can adjust mobile terminal
Mike emphasis gather the voice signal of user, then by acquired audio signal and the user that gathered
Voice signal carry out audio mixing and play, it is thus possible to improve final output signal quality.
Embodiment three
In order to preferably implement above method, present invention also offers a kind of mobile terminal, as shown in Figure 6,
The mobile terminal of the present embodiment includes:
Acquiring unit 601, for obtaining the audio file that user selects；
Decoding unit 602, is used for decoding described audio file and obtains audio signal；
Collecting unit 603, for gathering the voice signal of described user；
First processing unit 604, for carrying out audio mixing by described audio signal with described voice signal and playing.
In a kind of possible implementation, described acquiring unit 601 specifically for, by network from service
Device obtains the audio file that described user selects, or from described in the locally stored middle acquisition of described mobile terminal
The audio file that user selects.
In a kind of possible implementation, described decoding unit 602 includes:
Resolve subelement, for resolving described audio file to obtain the sampling parameter of described audio file；
Decoding subelement, decodes described audio file for the sampling parameter according to described audio file and obtains institute
State audio signal.
In a kind of possible implementation, the employing parameter of described audio file includes sample rate, sampling essence
Degree and sound channel mode；
Described decoding subelement specifically for, calculate the encoder bit rate of described audio file, described encoder bit rate
For described sample rate, sampling precision, the product of sound channel mode three, i.e. code check=sample rate * sampling precision *
Sound channel mode；Decoding is and the contrary process of coding, decodes described audio file according to encoder bit rate
To described audio signal.
Wherein, employing rate, also referred to as sample rate or sample frequency, define the sampling in the unit interval
Number, it represents with hertz (Hz), and for acoustical signal, sample rate can be used to describe sound literary composition
The tonequality of part, tone, be to weigh sound card, the quality standard of audio files.Sample rate is the highest, i.e. samples
Interval time is the shortest, then the sample data obtained within the unit interval is the most, to the expression of signal waveform also
The most accurate.Certain relation is had, according to Nyquist theorem, only between sample rate and original signal frequency
When sample rate is higher than the twice of primary signal highest frequency, the signals revivification that digital signal could be represented becomes
Originally signal.
Sampling precision, the precision of its reflection voice metric wave-shape amplitude, with position (Bit) as unit, such as 8,
16.8 can be divided into 256 grades sound wave, and 16 can be divided into 65 same ripple, the signal of 536 grades.
Such as, each sample sound represents with 16 (2 bytes), and the sample sound value recorded is 0～65535
In scope, its precision is exactly the 1/65536 of input signal.The size of sample figure place has influence on the matter of sound
Amount, figure place is the most, and the quality of sound is the highest, and the memory space needed is the most；Figure place is the fewest, sound
Quality the lowest, the memory space of needs is the fewest.
Sound channel mode, being divided into monophonic or double track, monophonic value is 1, and double track value is 2.
After obtaining the sampling parameter of described audio file, collecting unit 603 can be according to the audio frequency obtained
The sampling parameter of file arranges the sampling parameter of the voice signal of mike collection user, according to adopting of arranging
Sample parameter, obtains the voice signal from mike, so that described audio signal and described voice signal
There is identical sampling parameter, in order to follow-up carry out stereo process.
In a kind of possible implementation, the form of described audio signal includes pulse code modulation PCM
Form and waveform WAV form, described audio signal includes background music or audio.
In a kind of possible implementation, described mobile terminal also includes:
Sound volume regulation unit, enters the volume of described background music or audio according to the change of volume button state
Row regulation, when heightening volume, is gradually increased volume according to presetting step-length of fading in, when turning down volume, and root
It is gradually reduced volume according to presetting step-length of fading out.
In a kind of possible implementation, described mobile terminal also includes:
Second processing unit, for carrying out the change of voice, filtering, drop to described audio signal or described voice signal
Make an uproar process.
In a kind of possible implementation, described first processing unit 604 includes:
Amplitude adjusts subelement, for the amplitude of described audio signal being adjusted to the first amplitude threshold, by institute
The amplitude of predicate tone signal is adjusted to the second amplitude threshold；
Superposition subelement, the described audio signal after amplitude being adjusted and described voice signal are superposed to one
Road；
Play subelement, for playing the signal being superposed to a road.
In a kind of possible implementation, described first processing unit 604 includes:
Superposition subelement, for being superposed to a road by described audio signal and described voice signal；
Attenuator unit, for carrying out attenuation processing by the signal overflowed after superposition；
Play subelement, for playing the signal being superposed to a road.
It should be noted that the mobile terminal that above-described embodiment provides is when processing live sound, only with above-mentioned
The division of each functional module is illustrated, and in actual application, can above-mentioned functions be divided as desired
Join and completed by different functional modules, the internal structure of equipment will be divided into different functional modules, with complete
Become all or part of function described above.It addition, the mobile terminal of above-described embodiment offer and live sound
Voice handling method belongs to same design, and it implements process and refers to embodiment of the method, and here is omitted.
In the present embodiment, the acquiring unit of mobile terminal can obtain the audio file that user selects, and decoding is single
Unit decodes this audio file and obtains audio signal, thus is no longer necessary to be believed by other outer device plays audio frequency of putting
Number, also it is no longer necessary to use the mike of mobile terminal to gather this audio signal, after obtaining audio signal,
Collecting unit can adjust the voice signal of the mike emphasis collection user of mobile terminal, is then broadcast by audio mixing
Put unit the voice signal of acquired audio signal with the user gathered is carried out audio mixing and play, thus
The quality of final output signal can be improved.
Embodiment four
Accordingly, the embodiment of the present invention additionally provides a kind of mobile terminal, as it is shown in fig. 7, this mobile terminal
Radio frequency (RF, Radio Frequency) circuit 701 can be included, include one or more calculating
The memorizer 702 of machine readable storage medium storing program for executing, input block 703, display unit 704, sensor 705, sound
Frequency circuit 706, Wireless Fidelity (WiFi, Wireless Fidelity) module 707, include one or one
The parts such as the individual above processor 708 processing core and power supply 709.Those skilled in the art can manage
Solving, the mobile terminal structure shown in Fig. 7 is not intended that the restriction to terminal, can include more more than diagram
Or less parts, or combine some parts, or different parts are arranged.Wherein:
RF circuit 701 can be used for receiving and sending messages or in communication process, the reception of signal and transmission, especially,
After the downlink information of base station is received, transfer to one or more than one processor 708 processes；It addition, will
Relate to up data and be sent to base station.Generally, RF circuit 701 include but not limited to antenna, at least one
Individual amplifier, tuner, one or more agitator, subscriber identity module (SIM, Subscriber Identity
Module) card, transceiver, bonder, low-noise amplifier (LNA, Low Noise Amplifier),
Duplexer etc..Additionally, RF circuit 701 can also be communicated with network and other equipment by radio communication.
Described radio communication can use arbitrary communication standard or agreement, includes but not limited to global system for mobile communications
(GSM, Global System of Mobile communication), general packet radio service (GPRS,
General Packet Radio Service), CDMA (CDMA, Code Division Multiple
Access), WCDMA (WCDMA, Wideband Code Division Multiple Access),
Long Term Evolution (LTE, Long Term Evolution), Email, Short Message Service (SMS, Short
Messaging Service) etc..
Memorizer 702 can be used for storing software program and module, and processor 708 is stored in by operation
The software program of reservoir 702 and module, thus perform the application of various function and data process.Memorizer
702 can mainly include store program area and storage data field, wherein, storage program area can store operating system,
Application program (such as sound-playing function, image player function etc.) etc. needed at least one function；Deposit
Storage data field can store the data (such as voice data, phone directory etc.) that the use according to mobile terminal is created
Deng.Additionally, memorizer 702 can include high-speed random access memory, it is also possible to include non-volatile depositing
Reservoir, for example, at least one disk memory, flush memory device or other volatile solid-state parts.
Correspondingly, memorizer 702 can also include Memory Controller, to provide processor 708 and input block
The access of 703 pairs of memorizeies 702.
Input block 703 can be used for receive input numeral or character information, and produce with user setup with
And function controls relevant keyboard, mouse, action bars, optics or the input of trace ball signal.Specifically,
In a specific embodiment, input block 703 can include Touch sensitive surface and other input equipments.Touch
Sensitive surfaces, also referred to as touches display screen or Trackpad, can collect user thereon or neighbouring touch operation
(such as user uses any applicable object such as finger, stylus or adnexa on Touch sensitive surface or at touch-sensitive table
Operation near face), and drive corresponding attachment means according to formula set in advance.Optionally, touch-sensitive
Surface can include touch detecting apparatus and two parts of touch controller.Wherein, touch detecting apparatus detection is used
The touch orientation at family, and detect the signal that touch operation brings, transmit a signal to touch controller；Touch
Controller receives touch information from touch detecting apparatus, and is converted into contact coordinate, then gives process
Device 708, and order that processor 708 sends can be received and performed.Furthermore, it is possible to employing resistance-type,
The polytypes such as condenser type, infrared ray and surface acoustic wave realize Touch sensitive surface.Except Touch sensitive surface, input
Unit 703 can also include other input equipments.Specifically, other input equipments can include but not limited to
Physical keyboard, function key (such as volume control button, switch key etc.), trace ball, mouse, operation
One or more in bar etc..
Display unit 704 can be used for showing the information inputted by user or the information being supplied to user and end
End various graphical user interface, these graphical user interface can by figure, text, icon, video and
Its combination in any is constituted.Display unit 704 can include display floater, optionally, can use liquid crystal
Show device (LCD, Liquid Crystal Display), Organic Light Emitting Diode (OLED, Organic
Light-Emitting Diode) etc. form configure display floater.Further, Touch sensitive surface can cover aobvious
Show panel, when Touch sensitive surface detects thereon or after neighbouring touch operation, sends processor 708 to
To determine the type of touch event, carry on a display panel according to the type of touch event with preprocessor 708
For corresponding visual output.Although in the figure 7, Touch sensitive surface and display floater are the portions independent as two
Part realizes input and input function, but in some embodiments it is possible to by Touch sensitive surface and display floater
Integrated and realize input and output function.
Terminal may also include at least one sensor 705, such as optical sensor, motion sensor and other
Sensor.Specifically, optical sensor can include ambient light sensor and proximity transducer, wherein, ambient light
Sensor can regulate the brightness of display floater according to the light and shade of ambient light, and proximity transducer can move in terminal
When moving in one's ear, close display floater and/or backlight.As the one of motion sensor, acceleration of gravity
Sensor can detect the size of (generally three axles) acceleration in all directions, can detect that gravity time static
Size and direction, can be used for identify mobile phone attitude application (such as horizontal/vertical screen switching, dependent game, magnetic
Power meter pose calibrating), Vibration identification correlation function (such as pedometer, percussion) etc.；Also may be used as terminal
Other sensors such as the gyroscope of configuration, barometer, drimeter, thermometer, infrared ray sensor, at this
Repeat no more.
Voicefrequency circuit 706, speaker, microphone can provide the audio interface between user and terminal.Audio frequency
The signal of telecommunication after the voice data conversion that circuit 706 can will receive, is transferred to speaker, speaker turns
It is changed to acoustical signal output；On the other hand, the acoustical signal of collection is converted to the signal of telecommunication by microphone, by sound
Frequency circuit 706 is converted to voice data after receiving, then after voice data output processor 708 is processed, warp
RF circuit 701 to be sent to such as another terminal, or by voice data output to memorizer 702 so that
Process further.Voicefrequency circuit 706 is also possible that earphone jack, to provide the logical of peripheral hardware earphone and terminal
Letter.
WiFi belongs to short range wireless transmission technology, and mobile terminal can help to use by WiFi module 707
Family is sent and received e-mail, is browsed webpage and access streaming video etc., and it is mutual that it has provided the user wireless broadband
Internet interview.Although Fig. 7 shows WiFi module 707, but it is understood that, it is also not belonging to
Must be configured into of terminal, can omit completely as required in not changing the scope of essence of invention.
Processor 708 is the control centre of mobile terminal, utilizes various interface and connection whole mobile whole
The various piece of end, is stored in the software program in memorizer 702 and/or module by running or performing,
And call the data being stored in memorizer 702, perform the various functions of terminal and process data, thus
Mobile phone is carried out integral monitoring.Optionally, processor 708 can include one or more process core；Preferably
, processor 708 can integrated application processor and modem processor, wherein, application processor is main
Processing operating system, user interface and application program etc., modem processor mainly processes radio communication.
It is understood that above-mentioned modem processor can not also be integrated in processor 708.
Mobile terminal also includes the power supply 709 (such as battery) powered to all parts, it is preferred that power supply
Can be logically contiguous with processor 708 by power-supply management system, thus realize pipe by power-supply management system
The functions such as reason charging, electric discharge and power managed.Power supply 709 can also include one or more
Direct current or alternating current power supply, recharging system, power failure detection circuit, power supply changeover device or inverter,
The random component such as power supply status indicator.
Although not shown, mobile terminal can also include photographic head, bluetooth module etc., does not repeats them here.
The most in the present embodiment, the processor 708 in mobile terminal can be according to following instruction, by one or one
The executable file that the process of individual above application program is corresponding is loaded in memorizer 702, and by processor
708 run the application program being stored in memorizer 702, thus realize various function:
Obtain the audio file that user selects；Decode described audio file and obtain audio signal；Gather described use
The voice signal at family；Described audio signal is carried out audio mixing with described voice signal and plays.
Described audio file can be obtained from server by network, or described audio file can be from described
The locally stored middle acquisition of mobile terminal, described audio signal includes background music or audio.
One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment
Suddenly the program that can be by completes to instruct relevant hardware, and this program can be stored in a computer-readable
In storage medium, storage medium may include that read only memory (ROM, Read Only Memory),
Random access memory (RAM, Random Access Memory), disk or CD etc..
The live sound processing method of one provided the embodiment of the present invention above and mobile terminal are carried out
Being discussed in detail, principle and the embodiment of the present invention are set forth by specific case used herein, with
The explanation of upper embodiment is only intended to help to understand method and the core concept thereof of the present invention；Simultaneously for this
The technical staff in field, according to the thought of the present invention, the most all has and changes
In place of change, in sum, this specification content should not be construed as limitation of the present invention.
Claims (18)
1. a live sound processing method, it is characterised in that including:
Obtain the audio file that user selects；
Decode described audio file and obtain audio signal；
Gather the voice signal of described user；
Described audio signal is carried out audio mixing with described voice signal and plays.
Method the most according to claim 1, it is characterised in that the audio frequency literary composition that described acquisition user selects
Part includes: obtain, from server, the audio file that described user selects by network, or from mobile terminal
The audio file that the locally stored described user of middle acquisition selects.
Method the most according to claim 1, it is characterised in that the described audio file of described decoding obtains
Audio signal includes:
Resolve described audio file to obtain the sampling parameter of described audio file；
Sampling parameter according to described audio file decodes described audio file and obtains described audio signal.
Method the most according to claim 3, it is characterised in that the sampling parameter bag of described audio file
Including sample rate, sampling precision and sound channel mode, the described sampling parameter according to described audio file decodes described
Audio file obtains described audio signal and includes:
Calculate the encoder bit rate of described audio file, described encoder bit rate be described sample rate, sampling precision,
The product of sound channel mode three；
Decode described audio file according to described encoder bit rate and obtain described audio signal.
5. according to the method described in Claims 1-4 any one, it is characterised in that described audio signal
Form include pulse code modulation PCM format and waveform WAV form, described audio signal includes background
Music and audio.
Method the most according to claim 5, it is characterised in that obtain sound decoding described audio file
Frequently, after signal, described method also includes:
The volume of described background music or audio is adjusted by the change according to volume button state, is heightening
During volume, it is gradually increased volume according to presetting step-length of fading in, when turning down volume, according to presetting step-length of fading out
It is gradually reduced volume.
Method the most according to claim 1, it is characterised in that by described audio signal and institute's predicate
Before tone signal carries out audio mixing and plays, described method also includes:
Described audio signal or described voice signal are carried out the change of voice, filtering, noise reduction process.
Method the most according to claim 1, it is characterised in that by described audio signal and described voice
Signal carries out audio mixing and broadcasting includes:
The amplitude of described audio signal is adjusted to the first amplitude threshold, the amplitude of described voice signal is adjusted
It it is the second amplitude threshold；
Described audio signal after amplitude being adjusted and described voice signal are superposed to a road；
Play the signal being superposed to a road.
Method the most according to claim 1, it is characterised in that by described audio signal and described voice
Signal carries out audio mixing and broadcasting includes:
Described audio signal and described voice signal are superposed to a road；
The signal overflowed after superposition is carried out attenuation processing；
Play the signal being superposed to a road.
10. a mobile terminal, it is characterised in that including:
Acquiring unit, for obtaining the audio file that user selects；
Decoding unit, is used for decoding described audio file and obtains audio signal；
Collecting unit, for gathering the voice signal of described user；
First processing unit, for carrying out audio mixing by described audio signal with described voice signal and playing.
11. mobile terminals according to claim 10, it is characterised in that described acquiring unit is specifically used
In, obtain, from server, the audio file that described user selects by network, or from described mobile terminal
The audio file that the locally stored described user of middle acquisition selects.
12. mobile terminals according to claim 10, it is characterised in that described decoding unit includes:
Resolve subelement, for resolving described audio file to obtain the sampling parameter of described audio file；
Decoding subelement, decodes described audio file for the sampling parameter according to described audio file and obtains institute
State audio signal.
13. mobile terminals according to claim 12, it is characterised in that the sampling of described audio file
Parameter includes sample rate, sampling precision and sound channel mode；
Described decoding subelement specifically for, calculate the encoder bit rate of described audio file, described encoder bit rate
For described sample rate, sampling precision, the product of sound channel mode three；According to the decoding of described encoder bit rate
Audio file obtains described audio signal.
14. according to the mobile terminal described in claim 10 to 13 any one, it is characterised in that described sound
Frequently the form of signal includes pulse code modulation PCM format and waveform WAV form, described audio signal bag
Include background music or audio.
15. mobile terminals according to claim 14, it is characterised in that described mobile terminal also includes:
Sound volume regulation unit, enters the volume of described background music or audio according to the change of volume button state
Row regulation, when heightening volume, is gradually increased volume according to presetting step-length of fading in, when turning down volume, and root
It is gradually reduced volume according to presetting step-length of fading out.
16. mobile terminals according to claim 10, it is characterised in that described mobile terminal also includes:
Second processing unit, for carrying out the change of voice, filtering, drop to described audio signal or described voice signal
Make an uproar process.
17. mobile terminals according to claim 10, it is characterised in that described first processing unit bag
Include:
Amplitude adjusts subelement, for the amplitude of described audio signal being adjusted to the first amplitude threshold, by institute
The amplitude of predicate tone signal is adjusted to the second amplitude threshold；
Superposition subelement, the described audio signal after amplitude being adjusted and described voice signal are superposed to one
Road；
Play subelement, for playing the signal being superposed to a road.
18. mobile terminals according to claim 10, it is characterised in that described first processing unit bag
Include:
Superposition subelement, for being superposed to a road by described audio signal and described voice signal；
Attenuator unit, for carrying out attenuation processing by the signal overflowed after superposition；
Play subelement, for playing the signal being superposed to a road.
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