JP2687379B2 - Karaoke equipment - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is a so-called karaoke that allows a voice signal input from a microphone and an accompaniment signal reproduced by a reproduction device to be mixed and amplified to sing along with the accompaniment. The present invention relates to a device, and more particularly, to a karaoke device provided with a function capable of removing only a vocal component from a music signal containing vocals. 2. Description of the Related Art In recent years, karaoke devices have become widely used not only for specific business purposes but also for general gardeners and have formed a culture. With the spread thereof, various functions have been added, and recently, those equipped with a vocal signal removing circuit capable of removing only a vocal component from a vocal-containing music signal are becoming popular. An example of a conventional karaoke device will be described below with reference to the drawings. FIG. 2 is a block diagram of a conventional karaoke apparatus. In FIG. 2, reference numeral 1 denotes a microphone, the output of which is connected to the input of the amplifier 2. Reference numerals 12 and 13 denote left channel and right channel music signal input terminals, respectively, which are connected to the vocal signal removing circuit 11. The vocal signal removing circuit electrically calculates the music signals of the left channel and the right channel, and outputs the music signal from which the vocal component is removed to the a contact of the switch 10 and the switch 10 again.
Original sound (L +
R) A signal shall be output. The switch 10 is for selectively switching between the music signal from which the vocal signal has been removed and the original sound (L + R) signal which has not been removed. The common terminal C of the switch 10 and the output terminal of the amplifier 2 are connected to the mixing circuit 5. The output of the mixing circuit 5 is connected to the amplifier 3,
Output is connected to headphones 6 and switch 8
It is connected to the speaker 7 via. The operation of the karaoke device configured as described above will be described below. First, the audio signal input from the microphone 1 is amplified by the amplifier 2 and input to the mixing circuit 5. On the other hand, left channel and right channel signal input terminals 12, 13
The inputted music signal is processed by the vocal signal removing device 11. Now, assuming that the switch 10 is connected to the a contact, a music signal from which the vocal signal has been removed appears at the common terminal C of the switch 10 and is mixed by the mixing circuit 5 with the microphone output signal described above. Then, the mixed signal is amplified by the amplifier 3 and reproduced by the headphones 6 and the speaker 7. The switch 8 is for turning the speaker on and off. When the switch 8 is closed, a reproduced sound is output from the speaker, and when only headphones are used, the switch 8 is opened to prohibit reproduction from the speaker. Also,
If switch 10 is connected to the b contact, switch
Since the original sound (L + R) signal from which the vocal signal has not been removed appears at the common terminal C of 10, the vocal or accompaniment of a professional singer and the singing voice input from the microphone are output from the speaker or headphones. become. Therefore, when used as a karaoke device, the switch 10 is connected to the contact a, and a microphone is used to sing along with the music signal from which the vocal signal has been removed. Further, when it is simply used as a reproducing device or when a duet is made with a professional singer, the switch 10 is connected to the contact b, and the original sound whose vocal signal is not removed (L
The + R) signal may be reproduced. Also, normally, switch 8
Is closed and the sound is reproduced from the speaker, but in a state where a large volume cannot be reproduced at midnight or the like, the switch 8 is opened to reproduce only with the headphones. DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, in the above-described configuration, when used as a karaoke device, when the switch 8 is closed, the singing voice and the accompaniment are reproduced from the speaker, so that the singing voice of Inconvenience occurs when you do not want the neighbors of an apartment with poor sound insulation to hear you. When switch B is opened and karaoke is performed using only headphones,
Although I myself use it as a karaoke device, my neighbors can only hear the real singing voice without accompaniment, so in any case, if you do not want your neighbors to hear your singing voice, inconvenience will occur. In particular, the state of only singing a real voice without accompaniment when using headphones is a very unnatural state, and there is a problem that the song itself sounds unsatisfactory. In view of the above problems, the present invention reproduces only the original sound (L + R) signal from which the vocal signal of the professional singer has not been removed from the speaker when performing karaoke using headphones, and the real voice of the person performing the karaoke. Masking, and providing a karaoke device that allows the neighbors to think that they are listening to the music of a professional singer with vocals. Means for Solving the Problems In order to solve the above problems, the karaoke apparatus of the present invention is a vocal signal removing device for outputting a music signal obtained by removing only a vocal component from a vocal music signal and a vocal music signal. Circuit, a first switch circuit for selecting either the music signal from which only the vocal component of the output of the vocal signal removing circuit is removed or the music signal with vocals, and the signal selected by the first switch circuit and the microphone A mixing circuit that mixes the input audio signal, a first amplifier that drives the headphones by amplifying only the output of the mixing circuit, and a vocal music signal that is the mixing circuit output signal and the output of the vocal signal removal circuit. And a second switch circuit for selectively switching between and, and a signal of the second switch circuit is amplified to generate a spin signal. It is provided with a structure called a second amplifier for driving the marker. Effect The present invention has the above-described configuration in which the user's singing voice is added to the selected one of the music signal in which only the vocal component is removed by operating the first switch circuit and the music signal containing the vocal. You can listen with headphones, and if you operate the second switch circuit on it, you can select either the same sound as that heard from the above headphones from the speaker, or the music signal containing the vocal component. Since it can be reproduced from the speaker via the amplifier of 2, the real voice of karaoke using headphones is masked, and the neighbor can reproduce the music signal with the vocal of a professional singer. You will hear it as if you are singing, and you will be able to sing karaoke without your neighbors listening to you. Example Hereinafter, a karaoke apparatus according to an example of the present invention will be described with reference to the drawings. FIG. 1 shows a block diagram of a karaoke apparatus in an embodiment of the present invention. In FIG. 1, the elements with the same numbers as those in FIG. 2 are the same, so the description thereof will be omitted. Reference numeral 9 denotes a switch. The a-contact is connected to the output of the mixing circuit 5, and the b-contact is connected to the original sound (L + R) signal output terminal of the vocal signal removing circuit from which the vocal signal is not removed. And the common terminal C of the switch 9
Is connected to the input of the amplifier 4, and the output terminal of the amplifier 4 is connected to the speaker 7. The operation of the karaoke device configured as described above will be described below with reference to FIG. In FIG. 1, the state in which the switch 9 is connected to the contact a is operationally the same as the state in which the conventional switch 8 is closed, and therefore the description thereof is omitted. Then switch 9.
Is connected to the b contact. Since the input signals input from the left channel music signal input terminal 12 and the right channel music signal input terminal 13 are output as the original sound (L + R) signal from which the vocal signal is not removed to the b contact of the switch 10 as described above. , Only the original sound (L + R) signal appears at the common terminal C of the switch 9.
Therefore, after being amplified by the amplifier 4, only the music signal containing the vocalist of the professional singer is reproduced from the speaker 7. Further, since the singing voice of itself and the accompaniment signal from which the vocal component is removed are reproduced from the headphones, it can be used as a normal karaoke. That is, when karaoke is performed using headphones, since only the original sound (L + R) signal from which the vocal signal of the professional singer has not been removed is reproduced from the speaker to mask the real voice of the person who is karaoke, the neighbors It's as if you're listening to a vocalist with a professional singer. Effect of the Invention A vocal signal removing circuit that outputs a music signal and a music signal containing vocals in which only vocal components are removed from a music signal containing vocals, and a music signal in which only the vocal component output from the vocal signal removing circuit is removed. The first switch circuit for selecting either the vocal music signal, the mixing circuit for mixing the signal selected by the first switch circuit and the audio signal input from the microphone, and only the output of the mixing circuit A first amplifier that amplifies and drives the headphones; a second switch circuit that selectively switches between the mixing circuit output signal and the vocal music signal output from the vocal signal removal circuit;
By providing a second amplifier that amplifies the signal of the second switch circuit and drives a speaker, if you want to perform karaoke without being heard by your neighbors,
Since only the vocal music signal is reproduced from the speaker by the second amplifier, the real voice of karaoke using headphones is masked,
Neighbors will hear it as if they are playing a professional singer's vocal signal. There is a strong demand that the neighbors in the apartment do not want to hear the voice singing in karaoke, for example, and many people sing karaoke through headphones. In that case, if the environment is quiet, only the unsung vocal singing can be heard by the neighbor, which makes it even more unnatural, and in any case, it is difficult to enjoy karaoke in an apartment with poor sound insulation. According to the present invention, since music containing vocals of a professional singer is reproduced from a speaker and one's own voice is masked, it is possible to make a neighbor feel as if he or she generally listens to a song, etc. Since you can enjoy karaoke without worrying about your neighbors, the effect is extremely large.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of a karaoke device in one embodiment of the present invention, and FIG. 2 is a block diagram of a conventional karaoke device. 3, 4 ... Amplifier, 5 ... Mixing circuit, 9 ... Switch, 11 ... Vocal signal removal circuit.

Claims (1)

(57) [Claims] A vocal signal removal circuit that outputs a music signal with only vocal components removed from a vocal music signal and a music signal with vocals, and a music signal and vocal music with only the vocal component output from this vocal signal removal circuit removed. A first switch circuit for selecting one of the signals, a mixing circuit for mixing the signal selected by the first switch circuit and the audio signal input from the microphone, and amplifying only the output of the mixing circuit. A first amplifier for driving headphones, a second switch circuit for selectively switching between the mixing circuit output signal and the vocal music signal output from the vocal signal removing circuit, and a signal of the second switch circuit And a second amplifier for driving a speaker to amplify the karaoke