JPH11194784A - Karaoke accompaniment sound producing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the karaoke accompaniment sound producing device which provide a variety of usages by converting a singing voice into an accompaniment sound. SOLUTION: When a musical instrument sound is specified at an operation part or by a remote control and the voice of an accompaniment part that a singer sings is inputted from a voice input part 10 such as a microphone, the karaoke accompaniment sound producing device 1 converts the voice into a voice signal by the voice input part 10 and outputs it to a parameter extraction part 20. At the parameter extraction part 20, its pitch data extraction part 21 extracts pitch data corresponding to the rhythm of an accompaniment sound from the voice signal and outputs them to an accompaniment generator 41, whose sound volume data extraction part 22 extracts sound volume data corresponding to the level of the accompaniment sound from the voice signal and outputs them to an accompaniment sound generator 42. At an accompaniment sound producing part 40, a musical instrument sound specification part 42 reads specified timbre data out of a storage part 30 and outputs them to the accompaniment sound generator 41, which puts the timbre data and the pitch data and sound volume data outputted from the parameter extraction part 20 together one over another to produce an accompaniment sound like a musical instrument sound with the specified timbre, thereby reinforcing and outputting it through an output part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a karaoke accompaniment sound generating apparatus, and more particularly to a karaoke accompaniment sound generating apparatus for converting a singing voice into an accompaniment sound.

[0002]

2. Description of the Related Art Normally, a karaoke apparatus displays lyrics accompanied by a background image, and when a singer sings based on an accompaniment sound, the singing voice is spread by a microphone and accompaniment sounds are obtained.
Loudspeakers are output from speakers.

[0003] With the spread of such karaoke apparatuses, their functions have been enhanced and the methods of using karaoke have been expanding.

[0004] As a method of using such a new karaoke apparatus, recently, there is a strong demand for vocal only for voice such as a cappella which is a singing method without accompaniment. In order to perform the vocal of only the sound of the a cappella or the like with the conventional karaoke apparatus, the accompaniment sound is unnecessary.Therefore, the playback volume of the accompaniment sound of the karaoke apparatus is narrowed down, and only the lyrics are displayed. Vocals with only voice will be made possible.

[0005]

However, in such a conventional karaoke apparatus, in order to use the vocals of only the sound of a cappella or the like, the playback volume provided in the karaoke apparatus is reduced to a small value. , By displaying lyrics,
Not only is operation cumbersome and the karaoke device is not very useful, but also the singer sings at the singing timing using only the cue (generally, color-changing lyrics display) information from the background video and lyrics display. However, there is a problem that it is difficult to take a singing timing, and the karaoke apparatus is not easily used. In addition, in the case where the user wants to sing a song by devising the accompaniment part, in the conventional karaoke apparatus, if another singer who takes charge of a part other than the melody part tries to simulate the instrumental sound, the singer will imitate the singer. There is no other way than to sing and sing, and the karaoke apparatus is not easy to use.

Therefore, the invention according to claim 1 extracts pitch data indicative of a temperament and volume data indicative of dynamics from an audio signal, and extracts the tone data corresponding to a designated musical instrument sound and the extracted pitch data and volume data. By generating an accompaniment sound of a tone corresponding to the designated instrument sound, an accompaniment sound similar to the tone of the arbitrarily designated instrument sound can be easily and easily generated based on the voice sung by the singer. Provided is a karaoke accompaniment sound generation device which can freely change a melody sung by a singer to a sound close to a desired instrumental sound and enjoy a singing effect by voice alone as an accompaniment sound. The purpose is.

According to a second aspect of the present invention, when a rhythm instrument sound is selected by the instrument sound designating means, the pitch data extracted from the audio signal is cut off, and an accompaniment sound is generated only from the timbre data and the volume data. The object of the present invention is to provide a karaoke accompaniment sound generation device which can easily and easily generate an accompaniment sound of a rhythm instrument having no pitch information indicating a temperament from a voice sung by a singer, and which is more usable. I have.

According to a third aspect of the present invention, when a non-accompaniment is designated by the musical instrument sound designating means, the output of the accompaniment sound is cut off, and a predetermined cue image for instructing a singing timing to the background image and the lyrics image of the karaoke. Singing, the singing without accompaniment, that is, the singing with a cappella can be performed easily and easily, and the cue picture showing the singing timing at the time of singing with a cappella is displayed together with the lyric picture etc. It is an object of the present invention to provide a karaoke accompaniment sound generation device that can more easily perform singing at a karaoke device and has better usability.

[0009]

According to a first aspect of the present invention, there is provided a karaoke accompaniment sound generating apparatus for converting voice into a voice signal, and pitch data indicating a temperament from the voice signal converted by the voice input means. Parameter extraction means for extracting volume data indicating strength and strength, timbre storage means for storing timbre data of a plurality of instrument sounds, instrument sound designation means for specifying the instrument sound to be generated, and the parameter extraction means An accompaniment sound generating means for generating an accompaniment sound from pitch data, the volume data, and the timbre data; and reading the timbre data corresponding to the instrument sound specified by the instrument sound specifying means from the timbre storage means, Control means for outputting to the generation means and causing the accompaniment sound generation means to generate the accompaniment sound having a tone color corresponding to the specified musical instrument sound. Ri, has achieved the above object.

[0010] According to the above arrangement, pitch data indicating the tone and volume data indicating the intensity are extracted from the audio signal, and the tone data corresponding to the specified instrument sound and the specified musical instrument are extracted from the extracted pitch data and volume data. Since the accompaniment sound of the tone corresponding to the sound is generated, it is possible to easily and easily generate an accompaniment sound similar to the tone of the arbitrarily designated musical instrument sound based on the voice sung by the singer, The melody sung by the singer can be freely changed to a sound close to the desired instrumental sound, and the accompaniment sound can be enjoyed as the accompaniment sound, and the usability can be further improved.

In this case, for example, as described in claim 2, the karaoke accompaniment sound generation device outputs the pitch data extracted by the parameter extraction means from the parameter extraction means to the accompaniment sound generation means. The apparatus further comprises a selection unit for passing / blocking, wherein the control unit causes the selection unit to block the pitch data when the rhythm instrument sound is selected by the instrument sound designation unit, and the accompaniment sound generation unit includes: The accompaniment sound may be generated from only the timbre data and the volume data.

According to the above configuration, when a rhythm instrument sound is selected by the instrument sound designating means, the pitch data extracted from the audio signal is cut off, and the accompaniment sound is generated only from the timbre data and the volume data. An accompaniment sound of a rhythm instrument having no pitch information indicating a temperament can be easily and easily generated from a voice sung by a singer, and usability can be further improved.

Further, for example, as set forth in claim 3, the karaoke accompaniment sound generating device includes a cut-off means for passing / cutting an output of the accompaniment sound generated by the accompaniment sound generation means, and a karaoke background image. And a cue image generating means for inserting a predetermined cue image instructing a singing timing into the image generated by the image generating means, and the control means includes: When unaccompaniment is selected by the designation means, the output of the accompaniment sound is cut off by the cutoff means, and the cue picture is inserted into the picture generated by the picture generation means by the cue picture generation means. You may.

According to the above arrangement, when unaccompaniment is designated by the musical instrument sound designating means, the output of the accompaniment sound is cut off and
Since a predetermined cue image indicating the singing timing is inserted in the background image and the lyric image of the karaoke, singing without accompaniment, that is, singing with an a cappella can be performed easily and easily. A cue image indicating a singing timing at the time of singing is displayed together with a lyric image or the like, so that singing with an a cappella can be performed more easily, and usability can be further improved.

[0015]

Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. It should be noted that the embodiments described below are preferred embodiments of the present invention, and therefore, various technically preferable limitations are added. However, the scope of the present invention is not limited to the following description. The embodiments are not limited to these embodiments unless otherwise specified.

FIGS. 1 to 4 show a first embodiment of a karaoke accompaniment sound generating apparatus according to the present invention. This embodiment corresponds to claim 1 of the present invention.

FIG. 1 is a schematic block diagram of a karaoke accompaniment sound generating apparatus 1 to which the first embodiment of the karaoke accompaniment sound generating apparatus of the present invention is applied.

In FIG. 1, a karaoke accompaniment sound generating apparatus 1
Is a voice input unit 10, a parameter extraction unit 20, and a storage unit 3.
0 and an accompaniment sound generation unit 40 and the like.

The voice input unit (voice input means) 10 uses a microphone, for example, and takes in the voice of the accompaniment part sung by the singer and outputs it to the parameter extraction unit 20 as a voice signal.

Parameter extraction unit (parameter extraction means)
Reference numeral 20 extracts parameters from the audio signal input from the audio input unit 10, and specifically includes a pitch data extraction unit 21 and a volume data extraction unit 22, as shown in FIG.

As shown in FIG. 3, the pitch data extracting section 21 includes a plurality of bandpass filters BF1 to BFn and a number of detectors K corresponding to the bandpass filters BF1 to BFn.
1 to Kn, the number of integrators T1 to Tn corresponding to the band-pass filters BF1 to BFn, the encoders 23, and the like. The audio signal input from the audio input unit 10 corresponds to the tone of the accompaniment sound. Extract pitch data, which is a parameter.

The bandpass filters BF1 to BFn are band division filters that cover a sound band having a resolution of a semitone pitch, and analyze a sound signal input from the sound input unit 10. Detectors K1-Kn and integrators T1-T
n smoothes the analysis results of the band-pass filters BF1 to BFn and outputs the result to the encoder 23. For example, if the sound is 440 Hz, the pitch data extraction unit 21 analyzes the sound signal with the band-pass filters BF1 to BFn, and analyzes the analysis result as a key number 57 or the like.
To Kn and the integrators T1 to Tn to make the encoder 2
Enter 3 The encoder 23 is a kind of comparator,
The most appropriate band is selected, and pitch data, which is a signal designating a key number from a key number table stored in advance, is output to the accompaniment sound generation unit 40.

As shown in FIG. 4, the volume data extraction unit 22 includes a full-wave rectifier 24, an integrator 25, a quantizer 26, and the like, and extracts volume data which is a parameter corresponding to the intensity (magnitude) of the accompaniment sound. I do. The audio data extraction unit 22 converts the audio signal input from the audio input unit 10 into a full-wave rectifier 24.
Is integrated by an integrator 25 to extract an envelope, and the extracted envelope is quantized by a quantizer 26.
Then, for example, the data is quantized to a value such as 0 to 127, and the volume data is output to the accompaniment sound generation unit 40.

By the way, human voices do not show a rapid change due to the characteristics of the generating mechanism, and therefore do not make transient (temporary) movements. Therefore, the parameters in the pitch data extraction unit 21 and the volume data extraction unit 22 in the parameter extraction unit 20 do not change suddenly and abruptly. As a result, the pitch data extraction unit 21 and the volume data extraction unit 22 include the integrators T1 to Tn.
And the integrator 25, and the rounded value is used as the final parameter value (data).

Referring again to FIG. 1, the storage section (tone color storage means) 30 is constituted by a ROM (Read Only Memory) or the like, and stores various tone color data in advance.

As shown in FIG. 2, the accompaniment sound generator 40 includes an accompaniment sound generator 41, a musical instrument sound designator 42, and the like. The musical instrument sound specifying section (control means) 42 reads out from the storage section 30 the timbre data corresponding to the musical instrument sound specified and operated by the operating section or the remote controller or the like, which is not shown, and sends it to the accompaniment sound generator 41. Output. The accompaniment sound generator (accompaniment sound generation means) 41 receives the pitch data specifying the key number from the pitch data extraction unit 21 of the parameter extraction unit 20 and the volume data from the volume data extraction unit 22, The timbre data is input from the instrument sound specifying unit 42, and the accompaniment sound generator 41 superimposes (synthesizes) the timbre data input from the instrument sound specifying unit 42 and the pitch data and volume data input from the parameter extracting unit 20. Then, an accompaniment sound such as an instrument sound of a designated timbre is generated and output to the outside through an output unit (not shown), for example, an amplifier and a speaker.

Next, the operation of the present embodiment will be described. The karaoke accompaniment sound generation device 1 is characterized in that an accompaniment sound is generated from the voice input from the voice input unit 10.

That is, the karaoke accompaniment sound generating apparatus 1
When an accompaniment sound is generated by voice, a musical instrument sound for outputting the accompaniment sound by the voice is designated by an operation unit or a remote controller (not shown), and an accompaniment unit sung by a singer is input from a voice input unit 10 such as a microphone. When the voice of the part is input, the voice input unit 10 converts the voice into a voice signal and outputs the voice signal to the parameter extraction unit 20.

In the parameter extracting section 20, the pitch data extracting section 21 extracts pitch data corresponding to the temperament of the accompaniment sound from the input audio signal, and outputs it to the accompaniment sound generator 41 of the accompaniment sound generation section 40. The volume data extraction unit 22
Extracts the volume data corresponding to the strength of the accompaniment sound from the input audio signal, and outputs the accompaniment sound generator 4 of the accompaniment sound generation unit 40.
Output to 1.

The accompaniment sound generation unit 40 includes an instrument sound designation unit 42
Reads out the timbre data of the instrument sound specified by the operation unit or the remote controller from the storage unit 30 and outputs it to the accompaniment sound generator 41. The accompaniment sound generator 41
2 is superimposed (synthesized) on the pitch data and the volume data input from the parameter extraction unit 20 to generate an accompaniment sound such as a musical instrument sound of a specified timbre, and an output (not shown) The loudspeaker is output to the outside through the section.

Therefore, it is possible to easily and easily generate and output an accompaniment sound similar to the timbre of an arbitrarily designated instrument sound based on the voice sung by the singer. Can be enjoyed easily. As a result, the usability of the karaoke accompaniment sound generation device 1 can be improved.

FIG. 5 is a main circuit block diagram of a karaoke accompaniment sound generation device 50 to which a second embodiment of the karaoke accompaniment sound generation device of the present invention is applied. This embodiment is a percussion rhythm. A musical instrument sound is generated, and corresponds to claim 2.

This embodiment is applied to the same karaoke accompaniment sound generating apparatus as that of the first embodiment. In the description of this embodiment, the karaoke accompaniment sound generating apparatus of the first embodiment will be described. The same reference numerals are used as needed, and the same components are denoted by the same reference numerals, and detailed description thereof will be omitted.

In FIG. 5, a karaoke accompaniment sound generator 5
0 includes a parameter extraction unit 20 and a storage unit 30 similar to those of the first embodiment, and an accompaniment sound generation unit 51.
The accompaniment sound generation unit 51 includes an accompaniment sound generator 41 similar to that of the first embodiment, and also includes an instrument sound designation unit 52, a selector 53, and the like.

The parameter extracting section 20 includes a pitch data extracting section 21 and a volume data extracting section 22. The pitch data extracting section 21 and the volume data extracting section 22 of the parameter extracting section 20 have a voice input section 10 (not shown). An audio signal is input from. The pitch data extraction unit 21 extracts, from the audio signal input from the audio input unit 10, pitch data, which is a parameter corresponding to the temperament (high / low) of the accompaniment sound, and outputs the extracted data to the selector 53 of the accompaniment sound generation unit 51. The data extraction unit 22 extracts volume data, which is a parameter corresponding to the strength (magnitude) of the accompaniment sound of the audio signal input from the audio input unit 10, and outputs it to the accompaniment sound generator 41 of the accompaniment sound generation unit 51. .

The selector (selecting means) 53 is formed by a switch or the like, is operated by the musical instrument sound specifying section 52, and outputs the pitch data input from the pitch data extracting section 21 of the parameter extracting section 20 to the accompaniment sound generator 41. Output or cut off.

The instrument sound designating section (control means) 52 selects one of a plurality of tone data stored in the storage section 30 in response to an operation instruction from an operation section (not shown), a remote controller, or the like, and accompaniment. Output to the sound generator 41 and the selector 5
3 controls the passage / blocking of pitch data to the accompaniment sound generator 41, and when a rhythm instrument sound is selected and designated by an operation unit, a remote controller, or the like, the corresponding timbre data is read from the storage unit 30 and the accompaniment sound generator At the same time, the pitch data is cut off by the selector 53.

The karaoke accompaniment sound generator 5 of the present embodiment.
0 indicates that when an instrument sound other than the rhythm instrument sound is selected and operated by the operation unit or the remote controller, the instrument sound designation unit 52 reads out the timbre data corresponding to the selected instrument sound from the storage unit 30 and outputs the accompaniment sound. The output to the generator 41 and the selector 5
Make 3 pass. In this state, when the voice signal of the voice of the accompaniment part sung by the singer is input from the voice input unit 10 to the parameter extraction unit 20, the pitch data extraction unit 21
Extracts pitch data corresponding to the temperament of the accompaniment sound from the input audio signal, and outputs the extracted pitch data to the selector 53 of the accompaniment sound generation unit 51. The volume data extraction unit 22 determines the strength of the accompaniment sound from the input audio signal. Is extracted and output to the accompaniment sound generator 41. At this time, since the selector 53 has been set to the passing state by the musical instrument sound designation unit 52, the selector 53 outputs the pitch data input from the pitch data extraction unit 21 to the accompaniment sound generator 41.

The accompaniment sound generator 41 superimposes (synthesizes) the timbre data input from the musical instrument sound specifying unit 42 and the pitch data and the volume data input from the parameter extracting unit 20, and generates a musical instrument having the specified timbre. An accompaniment sound such as a sound is generated, and is output to the outside through an output unit (not shown).

On the other hand, in the karaoke accompaniment sound generation device 50, when a rhythm instrument sound is selected and designated by an operation unit or a remote controller (not shown), the instrument sound designation unit 52 reads the corresponding tone data from the storage unit 30, In addition to outputting to the accompaniment sound generator 41, since the rhythm instrument sound does not have pitch (frequency) information indicating the rhythm, the selector 53 is set to the cutoff state.

In this state, when the voice signal of the voice of the accompaniment part sung by the singer is input from the voice input unit 10 to the parameter extraction unit 20, the pitch data extraction unit 21 outputs the accompaniment sound from the input voice signal. The pitch data corresponding to the temperament is extracted and output to the selector 53 of the accompaniment sound generation unit 51,
The volume data extraction unit 22 extracts volume data corresponding to the strength of the accompaniment sound from the input audio signal, and outputs it to the accompaniment sound generator 41. At this time, since the selector 53 has been set to the cut-off state by the instrument sound designation unit 52, the selector 53
Cuts off the pitch data input from the pitch data extraction unit 21 and prohibits the input of pitch data to the accompaniment sound generator 41.

The accompaniment sound generator 41 superimposes (synthesizes) the timbre data input from the musical instrument sound specifying unit 42 and the volume data input from the parameter extracting unit 20 to obtain a specified rhythm instrument, for example, a drum. An accompaniment sound such as an instrument sound of such a tone color is generated and output to the outside through an output unit (not shown).

Thus, when a rhythm instrument sound is selected, the karaoke accompaniment sound generating apparatus 50 of the present embodiment cuts off the pitch data extracted from the audio signal, and generates the accompaniment sound only from the timbre data and the volume data. Can be generated. Therefore, it is possible to easily and easily generate the accompaniment sound of the rhythm instrument having no pitch information indicating the temperament from the voice sung by the singer, and to further improve the usability of the karaoke accompaniment sound generation device 50. Can be.

FIG. 6 is a main circuit block diagram of a karaoke accompaniment sound generating apparatus 60 to which the third embodiment of the karaoke accompaniment sound generating apparatus of the present invention is applied. This corresponds to the third aspect of the present invention.

The present embodiment is applied to the same karaoke accompaniment sound generating apparatus as the first embodiment, and in the description of the present embodiment, the same applies to the first embodiment. The same reference numerals are used as needed, and the same components are denoted by the same reference numerals, and detailed description thereof will be omitted.

In FIG. 6, a karaoke accompaniment sound generator 6
0 includes a storage unit 30 similar to that of the karaoke accompaniment sound generation device 1 of the first embodiment, an accompaniment sound generation unit 61, an a cappella control unit 62, a lyrics display generation unit 63, a sound output unit 64, and a display. The a cappella control unit 62 includes a cutoff unit 66, a musical instrument sound designation unit 67, a key signal generation unit 68, and the like.

The accompaniment sound generator 61 may be composed of only the accompaniment sound generator 41 of the first embodiment,
From the accompaniment sound generation unit 51 to the musical instrument sound designation unit 52
, That is, the accompaniment sound generator 41 and the selector 53 may be used.

The instrument sound designation section (control means) 67 is connected to the storage section 30 and also to the cutoff section 66 and the cue signal generation section 68, and is operated by an operation section (not shown) or a remote controller. , One of the plurality of tone color data stored in the storage unit 30 is selected and output to the accompaniment sound generation unit 61, and the accompaniment sound generation unit 61 is selected.
However, as described above, when the selector 53 is provided,
The selector 53 outputs a control signal for controlling the passage / blocking of pitch data to the accompaniment sound generator 41. When an unaccompanied a cappella is selected from the operation unit, the remote controller, or the like, the musical instrument sound specifying unit 67 causes the cutoff unit 66 to output the accompaniment sound generating unit 6.
1 outputs a cutoff signal for cutting off the accompaniment sound signal output to the sound output unit 64, and outputs the cue signal generation unit 6
8 outputs a cue generation instruction signal for inserting the cue video into the karaoke video.

The accompaniment sound generator 61 receives the pitch data and the volume data from the parameter extractor 20 (not shown).
The pitch data and the volume data are extracted from the audio signal input from 0, and the pitch data and the volume data are output to the accompaniment sound generation unit 61.

The accompaniment sound generator 61 includes the accompaniment sound generator 4
1 superimposes (synthesizes) the pitch data and the volume data input from the parameter extraction unit 20, generates an accompaniment sound signal, outputs the accompaniment sound signal to the blocking unit 66 of the a cappella control unit 62, and performs the second embodiment. When the selector 53 is provided as in the embodiment, the pitch data input from the parameter meter extraction unit 20 is passed / blocked to the accompaniment sound generator 41 in accordance with the control signal from the musical instrument sound specification unit 67. Is performed, the accompaniment sound generator 41 generates an accompaniment sound signal according to the passage / interruption of the pitch data, and outputs the accompaniment sound signal to the interruption unit 66 of the acapella control unit 62.

Blocking section (blocking means) of a cappella control section 62
Reference numeral 66 denotes a switch or the like. When the cutoff signal is not input from the musical instrument sound specifying section 67, the accompaniment sound signal input from the accompaniment sound generating section 61 is output to the sound output section 64 as it is, and the musical instrument sound specifying section 67 When the cutoff signal is input,
The accompaniment sound signal input from the accompaniment sound generation unit 61 is cut off.

The sound output section 64 is composed of an amplifier, a speaker, and the like, and outputs the accompaniment sound based on the accompaniment sound signal input from the accompaniment sound generation section 61 via the cutoff section 66.

The lyrics display generation section (image generation means) 63
Video data such as lyrics is extracted from a compact disk (CD) or karaoke data input through communication, and output to the cue signal generator 68 of the a cappella controller 62.

Cue signal generation section (cue image generation means)
68, when a cue generation instruction signal is input from the musical instrument sound designation unit 67, a cue image for instructing the start of a song or the start of singing is inserted into the karaoke video data input from the lyrics display generation unit 63 and displayed. If the cue generation instruction signal is not input from the musical instrument sound specification unit 67, the karaoke video data input from the lyrics display generation unit 63 is output to the display unit 65 as it is. The cue image is, for example, an image obtained by imaging a swing motion of a tact stick.
When the cue signal generation instruction signal is input, the cue signal generation unit 68 inserts the cue video into the video data in synchronization with, for example, the color change timing of the singing characters in the lyrics display.

The display section 65 is a CRT (cathode ray tube: Cathod).
e Ray Tube) or LCD (Liquid Crystal Displa)
When the cue signal is inserted into the karaoke video data by the cue signal generator 68, the background video and the lyrics video are displayed and output based on the video data input from the cue signal generator 68. The cue image is displayed and output together with the background image and the lyrics image.

The karaoke accompaniment sound generator 6 of the present embodiment.
0, when a musical instrument sound other than a cappella is selected and operated by an operation unit, a remote controller, or the like, the musical instrument sound specifying unit 67 reads out timbre data corresponding to the selected musical instrument sound from the storage unit 30, and outputs the accompaniment sound generating unit. The signal is output to the accompaniment sound generator 61 and the cut-off section 66 is set to the passing state, and is passed through the cue signal generation section 68 without outputting the cue generation instruction signal to the cue signal generation section 68. Set to state.

In this state, the voice signal of the voice of the accompaniment part sung by the singer is transmitted from the voice input unit 10 to the parameter extraction unit 2.
When the input is 0, the parameter extraction unit 20 extracts pitch data and volume data from the audio signal and outputs them to the accompaniment sound generation unit 61.
7, the tone data and the pitch data and the volume data, or the tone data and the volume data are synthesized.
An accompaniment sound signal of the musical instrument sound corresponding to the timbre data is generated and output to the blocking unit 66 of the acapella control unit 62.

Since the cut-off section 66 is set in the passing state, the accompaniment sound signal input from the accompaniment sound generation section 61 is output to the sound output section 64 as it is, and the sound output section 64
Outputs the accompaniment sound based on the input accompaniment sound signal.

On the other hand, the lyrics display generator 63 generates video data of the background video and the lyrics video, and outputs the video data to the cue signal generator 68. The cue signal generator 68 is now set to the passing state. Therefore, the video data input from the lyrics display generator 63 is output to the display 65 as it is. The display unit 65 displays an image corresponding to the input image data.

The karaoke accompaniment sound generating device 60
When an a cappella is selected and operated by an operation unit or a remote controller, the musical instrument sound designation unit 67 outputs a cutoff signal to the cutoff unit 66 to set the cutoff state, and outputs a cue generation instruction signal to the cue signal generation unit 68. Then, the cue image is inserted into the karaoke image data.

Accordingly, an audio signal is input from the audio input unit 10, and the parameter extraction unit 20 extracts pitch data and volume data based on the audio signal and outputs the data to the accompaniment sound generation unit 61. Although the accompaniment sound signal is generated by the 61 and output to the interruption unit 66, the accompaniment sound signal is output to the sound output unit 6 because the interruption unit 66 is set to the interruption state.
No. 4 is output, and all the accompaniment sounds are stopped.

On the other hand, the lyrics display generation section 63 generates video data of the background video and the lyrics video and outputs the video data to the cue signal generation section 68. Since the input is made from 67, a cue image for instructing the start of a song or the start of singing is inserted into the video data input from the lyrics display generator 63 and output to the display 65. The display unit 65 displays an image corresponding to the input image data. Since the cue image is inserted in this image data, the cue image, for example, the swing motion of the tact stick is displayed together with the background image and the lyrics image. Display the converted video.

Since the cue image operates in synchronization with the start of the song and the singing start timing, the singer of the a cappella can sing along with the cue image, and Can be done.

As described above, the karaoke accompaniment sound generating apparatus 60 of the present embodiment shuts off the output of the accompaniment sound when the unaccompaniment is designated, and instructs the karaoke background image and the lyric image to the singing timing. A predetermined cue image is inserted. Therefore, singing without accompaniment, that is, singing with a cappella can be performed easily and easily, and a cue image indicating singing timing is displayed together with a lyric image at the time of singing with a cappella, and singing with a cappella is performed. The karaoke accompaniment sound generation device 60 can be further easily performed, and the usability of the karaoke accompaniment sound generation device 60 can be further improved.

Although the invention made by the inventor has been specifically described based on the preferred embodiments, the invention is not limited to the above-described embodiment, and various modifications may be made without departing from the spirit of the invention. It goes without saying that it is possible.

[0066]

According to the karaoke accompaniment sound generating apparatus of the first aspect of the present invention, the pitch data indicating the temperament and the volume data indicating the intensity are extracted from the audio signal, and the timbre data and the tone data corresponding to the designated musical instrument sound are extracted. The accompaniment sound of the tone corresponding to the instrument sound specified from the extracted pitch data and volume data,
Since it is generated, it is possible to easily and easily generate an accompaniment sound similar to the tone of the arbitrarily designated instrument sound based on the voice sung by the singer, and freely desire the melody sung by the singer. It is possible to enjoy a singing effect by voice alone as an accompaniment sound by changing the sound to a sound close to the musical instrument sound, and further improve the usability.

According to the karaoke accompaniment sound generating apparatus of the second aspect, when the rhythm instrument sound is selected by the instrument sound designating means, the pitch data extracted from the audio signal is cut off.
Since the accompaniment sound is generated only from the timbre data and the volume data, it is possible to easily and easily generate the accompaniment sound of the rhythm instrument having no pitch information indicating the temperament from the voice of the singer. Properties can be further improved.

According to the karaoke accompaniment sound generating apparatus of the third aspect, when no accompaniment is designated by the musical instrument sound designation means, the output of the accompaniment sound is cut off and the karaoke background image and the lyric image are sung. Since a predetermined cue image that indicates the timing is inserted, singing without accompaniment, that is, singing with an a cappella can be performed easily and easily, and a cue image that indicates the singing timing when singing with an acapella is displayed. By displaying the lyrics together with the lyrics image, the singing with the a cappella can be performed more easily, and the usability can be further improved.

[Brief description of the drawings]

FIG. 1 is a main part circuit block diagram of a karaoke accompaniment sound generation device to which a first embodiment of a karaoke accompaniment sound generation device of the present invention is applied.

FIG. 2 is a detailed circuit block diagram of a parameter extraction unit and an accompaniment sound generation unit in FIG. 1;

FIG. 3 is a detailed circuit block diagram of a pitch data extraction unit in FIG. 2;

FIG. 4 is a detailed circuit block diagram of a sound volume data extraction unit in FIG. 2;

FIG. 5 is a main part circuit block diagram of a karaoke accompaniment sound generation device to which a second embodiment of the karaoke accompaniment sound generation device of the present invention is applied.

FIG. 6 is a main circuit block diagram of a karaoke accompaniment sound generation device to which a third embodiment of the karaoke accompaniment sound generation device of the present invention is applied.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Karaoke accompaniment sound generator 10 Voice input unit 20 Parameter extraction unit 21 Pitch data extraction unit 22 Volume data extraction unit 23 Encoder 24 Full-wave rectifier 25 Integrator 26 Quantizer 30 Storage unit 40 Accompaniment sound generation unit 41 Accompaniment sound Generator 42 Musical instrument sound designation unit 50 Karaoke accompaniment sound generation device 51 Accompaniment sound generation unit 52 Musical instrument sound designation unit 53 Selector 60 Karaoke accompaniment sound generation device 61 Accompaniment sound generation unit 62 Acapella control unit 63 Lyric display generation unit 64 Sound output unit 65 display section 66 cutoff section 67 musical instrument sound designation section 68 key signal generation section BF1 to BFn band pass filter K1 to Kn detector T1 to Tn integrator

Claims (3)

[Claims] 1. A sound input means for converting a sound into a sound signal, a parameter extracting means for extracting pitch data indicating a temperament and volume data indicating strength and weakness from the sound signal converted by the sound input means, and a plurality of musical instrument sounds. Timbre storage means for storing the timbre data of the above, instrument sound designation means for designating the instrument sound to be generated, and an accompaniment tone for producing an accompaniment tone from the pitch data, the volume data and the timbre data extracted by the parameter extraction means. Generating means, and reading out the timbre data corresponding to the musical instrument sound specified by the musical instrument sound specifying means from the timbre storage means and outputting the read timbre data to the accompaniment sound generating means, and outputting the timbre corresponding to the specified musical instrument sound. A karaoke accompaniment sound generation apparatus, comprising: control means for causing the accompaniment sound generation means to generate an accompaniment sound. 2. The karaoke accompaniment sound generation apparatus further includes a selection means for passing / cutting an output of the pitch data extracted by the parameter extraction means from the parameter extraction means to the accompaniment sound generation means. The control means
When a rhythm instrument sound is selected by the instrument sound designating means, the pitch data is cut off by the selecting means, and the accompaniment sound generating means generates the accompaniment sound only from the tone color data and the volume data. The karaoke accompaniment sound generation apparatus according to claim 1, wherein: 3. The karaoke accompaniment sound generation device includes: a cut-off unit for passing / cutting an output of the accompaniment sound generated by the accompaniment sound generation unit; a video generation unit for generating a karaoke background image and a lyrics image. Cue image generation means for inserting a predetermined cue image instructing singing timing into the image generated by the image generation means, further comprising, when the unaccompaniment is selected by the instrument sound designation means,
3. The cue image generator according to claim 1, wherein the cutoff unit cuts off the output of the accompaniment sound, and the cue image generation unit causes the cue image to be inserted into the image generated by the image generation unit. Karaoke accompaniment sound generator.