JP2001060089A - Karaoke device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To avoid the singing of a singer and the performance of other players being adversely affected even though the musical instrument playing is greatly deviated from automatic playing. SOLUTION: A data comparison section 18 compares a musical sound by automatic playing and a musical sound by the playing of musical instruments 4 to 7 and outputs the comparison result. Based on the result, a compensation circuit section 21 conducts switching control of the output. In other words, when any one of the musical instruments is played during an automatic playing, the output of a minus one data generating section 19 and the external input of the musical instrument are selected when the playing of the musical instrument and the automatic playing are matched and musical instrument playing sound is outputted in place of the musical sound of the subject part of the automatic playing. If the playing of the musical instrument greatly deviates from the automatic playing, the music instrument playing is ignored and the automatic playing sound is outputted with no modification.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a karaoke apparatus.

[0002]

2. Description of the Related Art Hitherto, a karaoke apparatus for providing an accompaniment performance to a singer has been known. When such a karaoke apparatus is used, there is a case where not only the karaoke is used as an accompaniment performance attached to the singing but also a musical instrument performance is desired to be enjoyed along with the karaoke performance. For example, in a gathering such as a song recreation, when someone sings to music, there is a sight that someone with an instrument such as tambourine will participate in accompaniment with the song to excite the place. Often seen. Considering that such a thing is performed during the performance of karaoke, if the karaoke device can function as a device for performing a so-called general-purpose minus performance that plays only a part where no instrument is played, the way of enjoying karaoke is improved. It will increase further.

[0003]

By the way, considering the use of the karaoke apparatus as a general-purpose apparatus for performing a minus performance as described above, if the performance of the musical instrument player is good, there is no problem for the singer. However, if the musician's performance skills are not so mature and the performance is significantly different from karaoke performance, the singer will have difficulty listening to the correct accompaniment of karaoke, making it difficult to sing. There is.

[0004] The present invention has been made in view of the above-described circumstances. Even if the musical instrument performance is shifted from the automatic performance, the performance of the singer or other performers is disturbed by this. It is an object of the present invention to provide a karaoke device that can be avoided.

[0005]

In order to solve the above-mentioned problems, a karaoke apparatus according to the present invention comprises a sound source capable of generating a musical sound corresponding to given musical sound information and a music composed of one or more parts. First information acquiring means for acquiring corresponding first musical tone information, second information acquiring means for acquiring second musical tone information corresponding to a performance operation from a predetermined performance device, and the first musical tone Comparing means for comparing a feature amount between a tone corresponding to a part of the information corresponding to the part of the second tone information and a tone corresponding to the second tone information and detecting an error between the two; Selecting means for selecting one of the portion of the first tone information corresponding to the part of the second tone information or the second tone information in accordance with the error detected by the comparing means And selected by the selection means It is characterized by comprising an output switching means for the music information switches whether to output to the sound source. Here, in the above-mentioned karaoke apparatus, when the error is larger than a predetermined threshold value,
A part corresponding to the part of the second tone information in the first tone information may be selected, and if the error is smaller than a predetermined threshold, the second tone information may be selected. Further, in order to solve the above problem, the karaoke apparatus according to the present invention obtains a sound source capable of generating a musical tone corresponding to given musical tone information and first musical tone information corresponding to a music composed of one or more parts. First information acquiring means for acquiring, from a predetermined performance device, second information acquiring means for acquiring second musical tone information corresponding to a performance operation, and the second musical tone information among the first musical tone information. Comparing means for comparing feature amounts between a musical tone corresponding to a part corresponding to the part of the second musical tone and the musical tone corresponding to the second musical tone information and detecting an error between the two.
A correction unit that corrects the second tone information based on a portion of the first tone information corresponding to the part of the second tone information; and an error detected by the comparison unit. Selection means for selecting one of the second tone information and the second tone information corrected by the correction means, and switching whether or not to output the tone information selected by the selection means to the sound source; Output switching means. Here, in this karaoke apparatus, when the error is larger than a predetermined threshold, the selecting means selects the second musical tone information corrected by the correcting means, and the error is determined by a predetermined threshold. If smaller, the second tone information may be selected. Further, in the karaoke apparatus of each of the above configurations, the predetermined performance apparatus includes a performance apparatus side sound source capable of generating a musical tone according to the given performance information, and the output switching means is selected by the selection means. It is also possible to switch between outputting the musical tone information to the sound source or outputting to the performance device side sound source. The apparatus further includes a determination unit that determines whether the predetermined sound source includes a performance device-side sound source capable of generating a musical tone in accordance with the given musical tone information. When it is determined that the apparatus has the performance device-side sound source, the musical tone information selected by the selection means is output to either the sound source or the performance device-side sound source, and the predetermined performance device If it is determined that the musical instrument does not include the performance device-side sound source, it may be switched whether or not to output the tone information selected by the selection means to the sound source. Further, in the karaoke apparatus of each configuration described above, a designation means for designating an output destination of the musical sound information selected by the selection means to the output switching means may be provided.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. A: First Embodiment (1) Overall Configuration FIG. 1 is a block diagram showing a configuration of a karaoke apparatus according to a first embodiment of the present invention. The karaoke device according to the present embodiment functions as a karaoke device for singing and also functions as a karaoke device for musical instruments. In FIG. 1, a karaoke processor 1 includes a CPU, ROM,
It consists of hardware such as AM, and CPU is ROM
By executing the control program stored in the CPU, various kinds of signal processing are performed, and functions corresponding to each unit described later are realized.

Reference numeral 2 denotes a floppy (registered trademark) disk drive (hereinafter referred to as FDD), which is a MIDI (Musical).
Automatic performance data described in accordance with the Instrument Digital Interface (format) format is read from a floppy disk (not shown) and
Output to DI input terminal MIN1. The karaoke processor 1 also receives automatic performance data (MID) supplied from a host computer (not shown) via the communication line 3.
I data) is input from the MIDI input terminal MIN2. The karaoke processor 1 has a MIDI input terminal MI.
When the automatic performance data input from N2 is stored on a floppy disk, the data is transferred to a MIDI output terminal MOUT.
1 to FDD2.

Reference numerals 4 to 6 denote musical instruments with built-in sound sources (for example, electronic pianos, electronic drums, and other electronic musical instruments) each having a MIDI input / output interface. These instruments 4 to 6 have M corresponding to the respective performance operations.
The IDI data is output to the MIDI input terminals MIN3 to MIN5 of the karaoke processor 1. Reference numeral 7 denotes a musical instrument having no sound source (for example, an electric guitar or the like), which outputs a tone signal corresponding to a performance operation to an audio input terminal AIN1 of the karaoke processor 1. Reference numeral 8 denotes a microphone, which converts a singing voice into an electric signal (voice signal) and converts it into a microphone input terminal AIN2 of the karaoke processor 1.
Output to

A power amplifier 9 amplifies an audio signal supplied from an audio output terminal AOUT of the karaoke processor 1 and outputs the amplified signal from left and right output channels. The left and right channel outputs of the power amplifier 9 are supplied to speakers SP1 and SP2, respectively, and are generated as musical tones.

[0010] Further, 10 is an LCD (Liquid Crystal Diode).
This is a display device including a splay panel and the like, and displays score information and the like, which will be described later, based on an image signal output from a video output terminal VOUT of the karaoke processor 1.

(2) Details of Karaoke Processor 1 Next, details of the karaoke processor 1 will be described. In FIG. 1, reference numeral 11 denotes an input switching unit,
One of the automatic performance data input from the IDI input terminals MIN1 and MIN2 is selected and output. Also, 1
Reference numerals 2 to 15 denote parameter detectors for extracting feature amounts (hereinafter referred to as musical tone parameters) such as a scale (pitch), velocity (sound intensity), and sounding timing from the input MIDI data. , 17 are parameter detectors for extracting tone parameters similarly from the input tone signal.

That is, the parameter detecting section 12 extracts musical tone parameters from MIDI data (hereinafter referred to as automatic performance data) input via the input switching section 11, and the parameter detecting sections 13 to 15 respectively execute the musical instruments 4 to 6 The musical tone parameters are extracted from the MIDI data supplied from the musical instrument, and the parameter detecting unit 16
T), a musical tone parameter is extracted from a musical tone signal (audio signal) supplied through the
Extracts a tone parameter from a vocal signal (audio signal) supplied from the microphone 8 via an attenuator (ATT).

Reference numeral 18 denotes a data comparison unit,
7 and the external input from the microphone 8 and the automatic performance data of the corresponding parts, respectively, to compare the tone parameters. Here, the performance parts of the musical instruments 4 to 6 can be specified based on timbre information specified by, for example, a MIDI data program change. Musical instrument 7
With regard to, identification is not particularly required when the type of musical instrument is uniquely determined, but when it is not determined, the type of musical instrument needs to be identified. Also, the data comparing unit 18
Performs a process of correcting a key (scale) of an external input in order to compare musical tone parameters in a certain case, which will be described later in detail.

Next, reference numeral 19 denotes a minus one data creating unit for performing a process of minus (removing) information of a part corresponding to a musical instrument performance from the automatic performance data when a predetermined condition described later is satisfied. This minus one process is performed in order to output a musical tone by the musical instrument performance instead of the corresponding part of the automatic performance when the musical instrument performance is performed.

Reference numeral 20 denotes a key control unit.
Here, the key control mainly shifts the key of the accompaniment sound so that the singer can sing with a key (scale) that is easy to sing. In this embodiment, in addition to the key control of the accompaniment by the automatic performance, the key control of the musical instrument performance inputted from the outside is possible. That is, when the key control of the automatic performance is performed, it is necessary for the musical instrument player to shift the key in accordance with the key control, and it is difficult to shift the key depending on the skill level of the player. In some cases. Therefore, when performing the key control of the automatic performance, it is possible to perform the key control of the external input accordingly. And the key control unit 20
Is the key control for automatic performance by the operator.
A setting operation of turning off, a key shift amount, and on / off of a key control of an external input is received, and a signal corresponding to the set content is output to the correction circuit unit 21 and the display device 10.

The correction circuit section 21 controls the performance output mode in accordance with the comparison result in the data comparison section 18 and the selection result of the output destination by the operator (ie, whether to output from the karaoke apparatus or the musical instrument). . The key control process is also performed by the correction circuit unit 21.
The detailed processing contents of the correction circuit unit 21 will be described as the operation of the embodiment.

Reference numeral 22 denotes a sound source.
A musical tone is synthesized based on the automatic performance data supplied via the external device and external inputs (MIDI data) from the musical instruments 4 to 6, and the generated musical tone signal is output to the audio output adjusting system 23. The audio output adjustment system 23 has an automatic performance output,
It is provided for each system of the performance output of the musical instruments 4 to 7 and the vocal output from the microphone 8, and includes a filter for removing harmonic components such as noise, an equalizer (EQ) for correcting frequency characteristics, and an echo and reverb. It consists of an effector that gives various effects, and a volume adjustment unit that adjusts the volume level. The adjustment amounts of these units can be adjusted to desired values for each system.

Reference numeral 24 denotes a mixing unit which mixes the signals of the respective systems output from the audio output adjustment system 23 and outputs the mixed signal. Reference numeral 25 denotes a volume adjustment unit that adjusts the volume level of the mixed signal output from the mixing unit 24. An amplifier 26 amplifies the output of the volume adjuster 25 and outputs it to the power amplifier 9 from the audio output terminal AOUT of the karaoke processor 1.

(3) Operation of the Embodiment Next, the operation of the embodiment having the above configuration will be described with reference to the flowchart shown in FIG. However, in the following description, the automatic performance data of the designated music piece is FDD.
2 and the automatic performance is performed based on the data, while the performance and singing by the musical instruments 4 to 7 are performed.

First, in step C2, the detection units 12 to
Reference numeral 17 detects a tone parameter from an input by an automatic performance and an external input by an instrument performance. And step C
At 3, the data comparing unit 18 compares the tone parameters between the corresponding parts of the automatic performance and the musical instrument performance, and determines whether the error is greater than a predetermined threshold value. In accordance with this determination result, the correction circuit unit 21 selects one of a musical instrument priority mode in which the musical instrument performance is output prior to the corresponding part of the automatic performance and a modified output mode in which an external input by the musical instrument performance is corrected and output. Switch the output mode to.
Hereinafter, these output modes will be described separately.

Musical Instrument Priority Mode If the pitch, tone strength, tone generation timing, etc. of a musical performance do not deviate significantly from the corresponding part of the automatic performance, the correction circuit unit 21 sets the output of the performance part to the musical instrument priority mode.

In the musical instrument priority mode, the minus one data creating section 19 mutes (removes) the automatic performance data of the part corresponding to the musical performance, and outputs the minus one automatic performance data to the correction circuit section 21 ( Step C
4). Thereby, the automatic performance of the part is stopped.

The correction circuit section 21 determines whether or not the external input from the musical instrument performance is MIDI data (step C5). That is, as described above, the musical instruments to be played include the musical instruments 4 to 6 that output MIDI data and the musical instrument 7 that outputs audio signals, and determine whether or not to pass through the sound source 22 depending on whether or not the MIDI data. Because you do.

If it is determined that the external input is MIDI data, the process proceeds to step C6, and it is determined whether the sound output by the musical instrument or the sound output by the karaoke apparatus is selected as the tone generation mode. That is, in the present embodiment, in consideration of a case where the musical instrument has a better sound than the karaoke apparatus, a case where the user enjoys the performance of the musical instrument, and the like, the external input (MIDI data) from the musical instrument is returned to the musical instrument and the sound source is transmitted. The operator can select one of a mode in which sound is output using the sound source and a mode in which sound is output using the sound source 22 of the karaoke apparatus for each musical instrument.

If the sound output by the musical instrument is selected, the correction circuit section 21 switches the output destination so that the external input from the musical instrument is returned to the musical instrument. This allows
A musical tone is generated using the sound source of the musical instrument. On the other hand, when the sound output by the karaoke device is selected, the correction circuit unit 2
1 switches the output destination so that an external input from the musical instrument is supplied to the sound source 22. Thus, a tone corresponding to the musical instrument performance is generated by the sound source 22 inside the karaoke apparatus.

If it is determined in step C5 that the external input is not MIDI data, the correction circuit unit 21 outputs the sound output by the musical instrument 7 and the sound output by the karaoke device, as in the case of the MIDI data. It is determined which one is selected (step C9). If the sound output by the musical instrument 7 is selected,
Then, the output of the input audio signal is turned off, and sound output by the karaoke apparatus is prohibited (step C10). As a result, sound is output only by the musical instrument 7. on the other hand,
When the sound output by the karaoke apparatus is selected, the audio signal input from the musical instrument 7 is output to the audio systems 23 to 26 inside the apparatus. Thereby, sound output is performed by the karaoke device (step C11).

Correction Output Mode On the other hand, when the pitch, tone strength, sounding timing, etc. of the musical instrument performance are significantly different from the corresponding parts of the automatic performance, the correction circuit 21 sets the output of the performance part to the correction output mode. I do.

In this modified output mode, when the sound due to the musical instrument performance is greatly deviated, the part of the musical instrument performance is modified and output so as not to disturb the performance of the singer or other performers. is there. For example, there are the following two modes of the correction output. In the first mode, the output of the corresponding part is switched to the automatic performance, ignoring the external input due to the musical instrument performance. In the second aspect, the automatic performance data of the part corresponding to the musical instrument performance is referred to, and the external input is corrected so that the pitch, pitch, and the like approach, and then output. In this case, unlike the first mode, the external input is not completely ignored, so that the sound of the musical instrument performance is respected to some extent.

In this modified output mode,
Steps C5 to C11 in the above-described instrument priority mode
Similarly to the above, the output mode is controlled according to whether or not the external input is MIDI data and whether or not the sound is output by a musical instrument (steps C12 to C16).

The operations of steps C2 to C16 are repeated for each performance part until the performance of the music is completed (step C17).

Further, in parallel with the above-mentioned performance operation, the following display processing is performed. That is, the display device 10
Displays various information for guiding musical instrument performance, in addition to the display performed by a general karaoke apparatus, such as background images and lyrics. For example, the karaoke processor 1 forms musical score information from scale information and chord information included in the automatic performance data, forms key-con information indicating to the performer from information specified by the key control unit 20, and displays these in a video format. The signal is output to the display device 10 as a signal. In addition, the musical tone parameters, which are the result of the comparison between the musical instrument performance and the automatic performance, are graphed in time series, and the graph is displayed as a video signal on the display device 1.
Output to 0. As a result, the display device 10 displays the musical score information, key-con information and performance comparison information in parallel with the performance, and guides the player.

B: Second Embodiment Next, a second embodiment will be described. The basic configuration of the present embodiment is the same as that of the first embodiment shown in FIG. The present embodiment is different from the first embodiment in that, in addition to the function of the first embodiment, when the musical instrument performance is greatly deviated from the automatic performance, the function becomes a corrected output mode. Repetitive performance (repeated performance) with automatic performance as a model performance
Where to do. The repeat performance includes a manual repeat mode in which a repeat performance is performed in response to a manual operation by an operator, and an auto repeat mode in which the operator automatically selects a mode to perform a repeat performance. Hereinafter, the operation of this embodiment will be described by dividing these modes.

(1) In the case of the manual repeat mode First, the operation in the manual repeat mode will be described with reference to the flowcharts shown in FIGS. Operation of Automatic Performance First, automatic performance is performed as follows. In FIG. 3, when the start of the automatic performance is instructed (step C2)
1) First, the memory B, which is a predetermined area on the RAM, is cleared (step C22). Here, the memory B is
This is a storage area for holding performance data of a phrase in which a tone parameter error is larger than a threshold value for a repeat performance to be described later. Then, the automatic performance data is read from the FDD 2 (step C23).

Next, the read automatic performance data for one phrase (hereinafter referred to as phrase data) is stored in the memory A.
(A predetermined area different from the memory B on the RAM) (step C26). The automatic performance data includes information for identifying the length of the phrase in consideration of the repeat performance in phrase units.

Next, the automatic performance data is sequentially read from the memory A (step C29). During this time, if there is no external input, the determination result of step C31 is “No”, and the process proceeds to step C44 shown in FIG. In Step C44,
A key control process is performed on the read performance data in accordance with the settings, and a sound generation process is performed by the sound source 22 in step C45.

The above steps C29, C44, C45
Is repeated until all the phrase data in the memory A is read out, whereby an automatic performance for one phrase is performed. When the performance of one phrase is completed, the result of the determination in step C30 becomes "Yes", and the next phrase data is set in the memory A again in step C26, and the above-mentioned steps C29, C44, C
The operation of 45 is repeated. By repeating these operations, the automatic performance progresses, and when the reading of the automatic performance data of one music is completed, the judgment result of step C46 becomes "Y".
es ", the memory A is finally cleared (step C47), and the operation is terminated (step C48). In addition,
In step C27 shown in FIG. 3, it is determined whether or not the phrase data in the memory A is a continuous phrase following the previous phrase. However, since the phrase data is a continuous phrase unless it is the first phrase or a repeat performance of the song, it is determined here. Is "Yes", and the performance is not interrupted in the middle of the music (that is, the waiting time for the repeat performance described later is not set).

Operation when there is an external input Now, when a musical instrument performance is added to the above-mentioned automatic performance, an external input by the musical instrument performance is detected, and step C3 shown in FIG.
The determination result of 1 is “Yes”. Accordingly, the process proceeds to step C32, in which tone parameters are extracted from the external input and the automatic performance data.

Here, as a pre-process for data comparison to be described later, it is determined whether or not the key control of the external input is set to ON (step C33). That is,
In the key control section 20, it is possible to set the key control of the musical instrument performance which is an external input in accordance with the key control of the automatic performance, but when the setting is off, the musical instrument player You will shift the keys yourself and play.

In this case, in the data comparison process performed later (step C35 shown in FIG. 4), the scale played by shifting the key is compared with the scale of the automatic performance data before shifting the key. Then, both will be greatly deviated. As described above, the inconvenience that the sound is deviated even though the player is performing in accordance with the key of the automatic performance occurs, so that the comparison with the automatic performance data before the key control is performed. For this purpose, the key of the external input is corrected in the reverse direction by the key shift amount of the automatic performance (step C34). For example, if the key control of the automatic performance is set to shift three times to the high frequency side, the key of the external input by the musical instrument performance is shifted to the low frequency side three times.
Conversely, if the key control of the automatic performance is set to shift three times to the low frequency side, the key of the external input by the musical instrument performance is shifted to the high frequency side three times. As a result, valid data comparison is performed, and the above-described inconvenience is eliminated.

On the other hand, when the key control of the external input is set to ON, the musical instrument player can play without shifting the keys. In this case, the external input by the musical instrument performance is compared with the automatic performance data before the key control, and then the key control processing is performed as in the automatic performance. Therefore, in this case, since the above-described inconvenience does not occur, the key correction for data comparison is not performed.

In step C35 shown in FIG. 4, the tone parameters are compared between the external input and the corresponding part of the automatic performance data. Then, it is determined whether or not the error is larger than a predetermined threshold (step C3).
6). Here, when the error of the tone parameter is small, it is further determined whether or not the setting of the minus one function is on (step C37). If the minus one setting is on, the part corresponding to the external input is removed from the automatic performance data to create minus one data in order to give priority to the musical instrument performance instead of the automatic performance (step C38). . If the setting of the minus one function is off, the minus one process is not performed.

On the other hand, if the error of the musical tone parameter is larger than the threshold value in step C36, the automatic performance is performed in the part in order to prevent the musical instrument performance from disturbing the singer or other performers. To give priority,
The above-described minus one processing is not performed. In this case, the current performance is not a repeat performance (step C3).
9) If the phrase being played is a new phrase (step C40), the phrase data in the memory A is set in the memory B in preparation for the subsequent repeat performance (step C41). Further, in this case, it is possible for the operator to set whether or not to turn on the tone generation by the external input. If the setting is turned on, the determination result of step C42 becomes "No", and the automatic performance is determined. Ensemble is possible. On the other hand, unless otherwise set, in step C42, off of the external input is the standard setting.
No external input is output, and automatic performance data is output.

As described above, after the key control process is performed according to the setting (step C44), the sound generation process is performed (step C45).

Operation of Repeat Performance When an operator operates a repeat switch (an operator for instructing repeat performance, not shown) to instruct repeat performance (step C24 shown in FIG. 3), the process proceeds to step C25.
To read the phrase data in the memory B. Then, in step C26, the phrase data for one phrase is set in the memory A.

Next, if the phrase data in the memory A is a continuous phrase of the previously played phrase, the process proceeds to step C29. On the other hand, if it is not a continuous phrase, the process proceeds to step C28, where a standby time until the performance of the memory A is started is set, and then the process proceeds to step C29. Thereby, the preparation time for the player is secured. Until the standby time of the performance elapses, the progress of the musical score display on the display device 10 is also stopped, and the performance and the display contents are synchronized.

Performance data is read from the memory A in the same manner as in the case of the automatic performance described above, and based on the read data, a repeat performance is performed, and a process corresponding to an external input by musical instrument performance is performed. Thus, when the automatic performance for one phrase is completed, the result of the determination in step C30 is “Y
es ", the phrase data for the next repeat performance is taken from the memory B into the memory A, and the automatic performance is performed in the same manner. In this way, this operation is repeated, and when all the data in the memory B have been played, step C46
Is "Yes", the memory A is cleared (step C47), and the repeat performance ends.

(2) Auto Repeat Mode Next, the operation in the auto repeat mode will be described. The auto-repeat mode is set by an operator for setting the auto-repeat mode. When the setting of the auto repeat mode is turned on, the processing shown in FIGS. 5 and 6 is performed instead of the above-described processing of the manual repeat mode.

That is, in the auto-repeat mode, if data exists in the memory B after the first automatic performance is completed (step C78 (see FIG. 6)),
In a step C79, it is determined whether or not the setting of the auto-repeat mode is on. If the setting is on, there is the above-mentioned error stored for the repeat performance in the step C54 shown in FIG. Part of the automatic performance data is read from the memory B. In step C78, as long as there is data in the memory B, the process proceeds to step C79. Therefore, the repeat performance is repeated until there is no more data in the memory B, that is, as long as the performance error is larger than the threshold value. However, if the auto repeat mode is turned off during the performance, step C8
Proceeding to C82, the performance ends. Other processes corresponding to automatic performance and external input are the same as those in the above-described manual repeat mode.

As an aspect of the repeated performance, as described above, as long as the performance error is larger than the threshold value, the repeat performance may be performed any number of times until the performance error becomes smaller, but it is not limited to this. For example, only once, or 2
The upper limit of the number of repeats, such as the number of times, may be determined.

As described above, in the above-described first embodiment, when an error in musical instrument performance is large, correction output is performed so as not to disturb the singer or other performers. From the viewpoint of learning an accurate performance, a repeat performance is performed by the selection of an operator (usually a player). This concept of performance practice is embodied in a specialized form in a third embodiment described later.

C: Third Embodiment Next, a third embodiment will be described. In this embodiment,
The karaoke apparatus having a repeat performance function according to the second embodiment is specially configured as a musical instrument practice apparatus.
FIG. 7 is a block diagram showing the configuration of the musical instrument training device according to the present embodiment. In this figure, the same parts as those of the embodiment shown in FIG.

Further, the third embodiment shown in FIG. 7 is different from the embodiment shown in FIG. 1 in that the processor 1 'has no sound source or audio output system because it is configured as a musical instrument training device instead of a karaoke device. There. Accordingly, the processor 1 'has an audio input terminal A
Neither IN1 nor the microphone input terminal AIN2 is provided.

With this configuration, in the present embodiment, all musical tones are generated using the sound sources of the musical instruments 4 to 6. That is, when there is no external input by playing a musical instrument, the correction circuit section 21 outputs automatic performance data of the part corresponding to the musical instrument to the musical instrument, and generates a musical tone using the sound source of the musical instrument. Also, when there is an external input by playing a musical instrument, the musical tone parameters are compared in the same manner as in the above-described embodiment, and when the error is not large, the automatic performance data is given to the part in order to give priority to the musical instrument playing. And returns the external input to the instrument to generate a musical tone. On the other hand, when the error of the musical tone parameter is large, if the repeat performance is instructed, the phrase is repeatedly performed as in the second embodiment, and an opportunity for performance practice is given. In addition, the display processing described in the first embodiment is also performed in parallel with the performance operation to guide the player. In this case, as in the second embodiment, there are two modes, an auto repeat mode and a manual repeat mode, and the details of the operation are as shown in FIGS.
Also, in this case, similarly to the first embodiment, it is possible to provide an operation mode for performing the correction output when the error of the external input is large.

C: Modifications The present invention is not limited to the above-described embodiment, and various modifications such as those described below are possible. (1) In the above embodiment, the performance parts of the musical instruments 4 to 6 are specified from the timbre information specified by the MIDI data program change. However, the present invention is not limited to this. For example, a musical instrument that does not output data such as a program change is connected. In this case, the karaoke processor 1 may inquire of the connected model by communication and check the type of musical instrument to identify the corresponding part.

(2) The format of the performance data (including the output of the externally connected musical instrument) is not limited to MIDI, and any other data format may be adopted as long as the performance part can be specified.

(3) A connection terminal may be provided for each model of the musical instrument, and the model to be determined by the terminal to which the musical instrument is connected and the part to be subtracted may be specified. Alternatively, a part to be subtracted may be manually specified from the operation panel.

(4) The processors 1 and 1 'according to the present invention can be mounted on a stand-alone karaoke apparatus or musical instrument training apparatus. However, the automatic performance data can be transferred via a public telephone line or ISDN. It is also possible to apply to a communication karaoke system for distribution.

(5) In the above embodiment, the live performance of a musical instrument is subjected to minus one processing. However, for example, a vocal part (main vocal or chorus part) is subjected to minus one processing like a musical instrument performance part. May be configured. In this case, the vocal part data may be included in the automatic performance data.

(6) The unit of the repeat performance is not limited to one phrase as in the embodiment, but may be a repeat performance of a different length.

(7) Further, the processor 1, 1 'according to the present invention can be used for, for example, a BGM (background music) system. As a result, some of the performance parts are BGM
It becomes possible to provide a system.

[0061]

As described above, according to the present invention,
When the second tone signal corresponding to the musical instrument performance or the like is greatly deviated from the first tone signal corresponding to the automatic performance or the like, the first tone signal of the corresponding part is replaced with the second tone signal. Since the signal component is output, the performance of the singer or another player is not disturbed.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of a first exemplary embodiment of the present invention.

FIG. 2 is a flowchart for explaining the operation of the embodiment.

FIG. 3 is a part of a flowchart for explaining an operation in a manual repeat mode in a second embodiment of the present invention.

FIG. 4 is another part of the flowchart.

FIG. 5 is a part of a flowchart for describing an operation in an auto-repeat mode in the embodiment.

FIG. 6 is another part of the flowchart.

FIG. 7 is a block diagram showing a configuration of a third embodiment of the present invention.

[Explanation of symbols]

1 ... karaoke processor, 1 '... musical instrument practice processor, 2 ... floppy disk drive, 3 ... communication line, 4-7 ... musical instrument (playing device), 8 ... microphone,
9 Power amplifier, 10 Display device, 11 Input switching unit, 12 to 17 Parameter detection unit, 18 Data comparison unit (comparing means), 19 Minus one processing unit, 20 Key control unit 21, correction circuit unit (output switching means) 22, sound source 23, audio output adjustment system 24 mixing unit 25 volume adjustment unit 26 amplifier unit AIN1 ... Audio input terminal, AIN2 ... Microphone input terminal, AOUT ...
Audio output terminals, MIN1 to MIN5 MIDI
Input terminals (first and second signal input means), MOUT1 to MOUT1
MOUT4: MIDI output terminal, SP1, SP2 ...
Speaker, VOUT ... Video output terminal.

Claims (7)

[Claims] 1. A sound source capable of generating a musical tone in accordance with given musical tone information, first information acquiring means for acquiring first musical tone information corresponding to a musical piece composed of one or a plurality of parts, a predetermined performance A second information acquisition unit for acquiring second tone information corresponding to a performance operation from the device; a tone corresponding to a part of the first tone information corresponding to a part of the second tone information; Comparing means for comparing a feature amount with a tone corresponding to the second tone information and detecting an error between the two; and, according to the error detected by the comparing means, the first tone information of the first tone information. Selecting means for selecting a part corresponding to the part of the second tone information or one of the second tone information; and determining whether to output the tone information selected by the selecting means to the sound source. Output switching means for switching Karaoke apparatus according to claim and. 2. The method according to claim 1, wherein when the error is greater than a predetermined threshold value, the selecting means selects a portion of the first tone information corresponding to the part of the second tone information, and the error is determined. 2. The karaoke apparatus according to claim 1, wherein the second musical tone information is selected when the value is smaller than a predetermined threshold value. 3. A sound source capable of generating a musical tone according to given musical tone information; a first information acquiring means for acquiring first musical tone information corresponding to a musical piece composed of one or a plurality of parts; A second information acquisition unit for acquiring second tone information corresponding to a performance operation from the device; a tone corresponding to a part of the first tone information corresponding to a part of the second tone information; Comparing means for comparing a feature amount with a tone corresponding to the second tone information and detecting an error between the two; and converting the second tone information into the second tone of the first tone information. Correction means for correcting based on a portion corresponding to a part of information; and, based on an error detected by the comparing means, of the second tone information or the second tone information corrected by the correction means. Selecting means for selecting one, A karaoke apparatus comprising output switching means for switching whether or not to output the tone information selected by the selection means to the sound source. 4. The selecting means selects the second tone information corrected by the correcting means when the error is larger than a predetermined threshold, and selects the second tone information when the error is smaller than a predetermined threshold. The karaoke apparatus according to claim 3, wherein the second tone information is selected. 5. The predetermined performance device includes a performance device-side sound source capable of generating a musical tone in accordance with given performance information, and the output switching means converts the musical tone information selected by the selection means to the sound source. 5. The apparatus according to claim 1, wherein switching is made between the output to the sound source and the output to the tone generator side sound source.
A karaoke apparatus according to any one of the above. 6. A determination device for determining whether or not the predetermined sound source includes a performance device-side sound source capable of generating a musical tone in accordance with given musical tone information, wherein the output switching unit includes: When it is determined that the predetermined performance device has the performance device-side sound source, the musical tone information selected by the selection means is output to one of the sound source and the performance device-side sound source, and 5. The method according to claim 1, wherein when it is determined that the performance device does not include the performance device-side sound source, it is switched whether or not to output the tone information selected by the selection means to the sound source. A karaoke device according to any one of the above. 7. The karaoke machine according to claim 1, further comprising a designation unit for designating an output destination of the musical tone information selected by said selection unit to said output switching unit. apparatus.