JP3324431B2 - Automatic performance device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic performance device which sequentially reads out performance data stored in a storage medium in advance and generates a desired musical tone based on the performance data. The present invention relates to an automatic performance device that can separately change a sounding state of a signal and a sounding state of an automatic performance.

[0002]

2. Description of the Related Art Conventionally, an automatic performance device that automatically generates musical sounds can be connected to an external device such as a microphone, and the first system supplied from the external device. , A second system tone signal reproduced by the automatic performance process, a third system tone signal generated in response to a performance operation, and the like. In such an automatic performance device, during an automatic performance or a performance operation, the input sound from the microphone is not directly given an effect without giving an effect or the like, or another performance sound is used to make the sound from the microphone stand out. There is a case where you want to make the background music smaller. In such a case, conventionally, parameters relating to the microphone and parameters relating to the musical performance have been manually and individually changed to desired values one by one.

[0003]

As described above, when manually changing various parameter values, if an automatic performance is being performed, an operator may be operated to change the parameter to a predetermined value. During operation, even advanced users required considerable skill in operating the controls, which was cumbersome. Even for beginners and amateurs, it is very difficult to operate the controls during a performance, and the performance operation has to be temporarily stopped in order to make changes. SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and a first sound signal (for example, a sound from a microphone) is directly applied to a sound without an effect by a one-touch operation in which an operator operates a predetermined switch. It is an object of the present invention to provide an automatic performance device capable of producing a vocal sound or producing a more pronounced sound than other performance sounds.

[0004]

An automatic performance device according to the present invention comprises a change instructing means, a volume changing means, an effect applying means,
Control means for processing at least two or more sound signals
Automatic change device, wherein the change instructing means includes a change period
Can be specified, and the volume changing means is controlled by the control means.
To change the volume of the sound signal, and the effect applying means
An effect corresponding to the fixed value is added to the sound signal, and the control means
Effect settings for a given system of sound signals during the specified change period.
While changing the constant value, the sound signal other than the predetermined system
This is to change the volume of the sound.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an automatic musical instrument according to the present invention will be described below in detail with reference to the accompanying drawings. FIG. 2 is a block diagram showing the overall configuration of the automatic performance device according to the present invention. The CPU 21 has a ROM 22 and a RAM 2
The entire operation is controlled based on various programs and various data in 3 and tone control information (MIDI data) fetched from an external storage device. In this embodiment, a floppy disk drive 24,
Hard disk drive 25, CD-ROM drive 2
6 and other examples, but other MO drives, P
A D drive or the like may be used. Further, various information such as tone control information may be acquired from the server computer 29 on the communication network 28 via the communication interface 27, or MIDI data or the like may be acquired from another MIDI device 2B or the like via the MIDI interface 2A. May be. The CPU 21 transmits the MIDI data fetched from such an external storage device or the MIDI data generated based on the key pressing operation of the keyboard 2C to the tone generator circuit 2.
Supply to J. Note that the tone generation process may be performed using a sound source circuit connected to the outside. ROM 22 is CP
U21 stores various programs (system programs, operation programs, and the like) and various data, and is configured by a read-only memory (ROM). RA
M23 temporarily stores various data generated when the CPU 21 executes the program, and is assigned a predetermined address area of a random access memory (RAM), and is used as a buffer, a flag, a table, and the like. You. Further, the operation program may be stored in an external storage device such as the hard disk device 25. Also, without storing the operation programs in the ROM 22, these operation programs are stored in an external storage device such as the hard disk device 25, and are stored in the ROM 22.
By reading into the AM 23, the CPU 21 may perform the same operation as when the operation program is stored in the ROM 22. By doing so, it is possible to easily add an operation program or upgrade the version. A CD-ROM may be used as one of the removable external storage media. The CD-ROM may store various data such as the above-described automatic performance data, chord progression data, musical sound waveform data, and video data, and an arbitrary operation program. The operation programs and various data stored in the CD-ROM can be read out by the CD-ROM drive 26 and transferred to and stored in the hard disk device 25. This makes it possible to easily perform new installation and version upgrade of the operation program.

The communication interface 27 is connected to a data and address bus 2M, and various communication networks 2 such as a LAN (local area network) and the Internet are connected via the communication interface 27.
8 and may exchange data with another server computer 29. Thus, when the operation program and various data are not stored in the hard disk device 25, the operation program and various data can be downloaded from the server computer 29. In this case, a command for requesting downloading of an operation program and various data is transmitted from the automatic performance device, which is a musical sound generation device serving as a client, to the server computer 29 via the communication interface 27 and the communication network 28. The server computer 29 transmits predetermined operation programs and data to the automatic performance device via the communication network 28 in response to the command. The automatic performance device receives these operation programs and data via the communication interface 27 and stores these programs and data in the hard disk device 25. Thus, the download of the operation program and various data is completed.

The keyboard 2C is provided with a plurality of keys for selecting the pitch of a musical tone to be produced, has key switches corresponding to each key, and has a pressing force detecting device or the like as necessary. It has touch detection means. The keyboard 2C is a basic operator for music performance, and it goes without saying that other keyboard operators may be used. The key press detection circuit 2D includes a key switch circuit provided corresponding to each key of the keyboard 2C for designating the pitch of a musical tone to be generated. The key press detection circuit 2D detects a change in the key 2C from the key release state to the key press state, and outputs a key-on event.
A key-off event is output by detecting a change from a key-depressed state to a key-released state, and a note number indicating a key pitch of each key-on event and key-off event is output. In addition, the key press detection circuit 2D discriminates a key press operation speed, a key press force, and the like when a key is pressed, and outputs velocity data and after touch data. The switch detection circuit 2F is provided corresponding to each switch group on the numeric keypad & keyboard & various switches 2E, and outputs a switch-on event according to the operation status of each switch group. As the switch group, for example, a style selection switch, a song selection switch, a start / stop switch, a talk switch 2P, and the like are provided. In addition,
In the figure, only the talk switch 2P is shown, and other switches are not shown. In addition, it has various controls for selecting, setting, and controlling the tone color, volume, pitch, effect, and the like of the musical tone to be generated. There are many other switches, but they are omitted here. The style selection switch and the song selection switch are provided with numbers "0" to "9" and symbols "+" and "-", for example, and operate these switches to input a desired style number or song number. By doing so, any one style or song is selected. The style name and song number selected by the style selection switch and the song selection switch are displayed on the display 2G. The start / stop switch is provided with, for example, the letters "start / stop" and controls the start or stop of the automatic performance every time the switch is operated. The talk switch 2P sets the input sound from the microphone 2Q to the talk mode. In the talk mode, the sound from the microphone 2Q is pronounced as it is,
In this mode, the sound is made to stand out more than other performance sounds. Therefore, when the talk switch 2P is turned on, the parameter value for the input voice from the microphone 2Q and the parameter value for the musical tone are automatically changed. There is a karaoke mode in addition to the talk mode. This is a mode in which various effects are added to the sound input from the microphone 2Q to generate sound in the same manner as the performance sound. The display circuit 2H controls the display contents of the display 2G, and displays the name of the song being played automatically, the tempo, the lyrics, and the like on the display 2G and the like.

The tone generator 2J can simultaneously generate tone signals on a plurality of channels, and inputs tone control information (MIDI data such as note-on, note-off, velocity, pitch, tone number, etc.) given from the CPU 21. And
A tone signal is generated based on these data. The tone generator 2J can simultaneously generate tone signals on a plurality of channels by using a single circuit in a time-division manner to form a plurality of tone channels, or a single tone channel is constituted by a single circuit. It may be of the type as described below. Also, any tone signal generation method in the tone generator circuit 2J may be used. For example, a memory reading method (waveform memory method) for sequentially reading out tone waveform sample value data stored in a waveform memory in accordance with address data that changes according to the pitch of a musical tone to be generated, or a phase angle parameter An FM method for executing a predetermined frequency modulation operation as data to obtain tone waveform sample value data, or an AM method for executing a predetermined amplitude modulation operation using the address data as phase angle parameter data to obtain tone waveform sample value data, or the like. May be appropriately adopted. In addition to these methods, a physical model method that synthesizes a musical sound waveform by an algorithm that simulates the sounding principle of a natural musical instrument, a harmonic synthesis method that synthesizes a musical sound waveform by adding a plurality of harmonics to a fundamental wave, A formant synthesis method of synthesizing a musical tone waveform using a formant waveform having a specific spectral distribution, an analog synthesizer method using VCO, VCF, and VCA may be employed. In addition, the tone generator circuit is not limited to the one that uses dedicated hardware, and the tone generator circuit may be configured using a DSP and a microprogram. Alternatively, the tone generator circuit may be configured using a CPU and software programs. It may be. The microphone 2Q converts the voice of the operator into an electric signal, and the converted electric signal is taken into the effect circuit 2K via the analog-digital (A / D) converter 2R. The effect circuit 2K independently applies various effects to the tone signal from the sound source circuit 2J and the audio signal from the A / D converter 2R, and sends the tone signal and the audio signal with the effect to the sound system 2L. Output. The tone signal and the sound signal to which the effect is given by the effect circuit 2K are converted into a sound system 2L including an amplifier and a speaker.
Pronounced via The timer 2N generates a tempo clock pulse for counting a time interval and setting a tempo of automatic accompaniment. The frequency of this tempo clock pulse is adjusted by a tempo switch (not shown) among the various switches 2E. The tempo clock pulse from the timer 2N is given to the CPU 21 as an interrupt command, and the CPU 21 executes various processes during the automatic performance by the interrupt process.

Next, an example of the operation of the automatic performance device according to the present invention will be described. 3 and 4 are views showing an example of a talk switch-on process performed by the automatic performance device according to the present invention. When the talk switch 2P is operated and a switch-on event occurs, the talk switch-on process of FIG. 3 starts. In the talk switch-on process, first, a series of processes from step 31 to step 33 is performed. In step 31, the tone volume MV, mic reverb value VR, mic chorus value VC, and mic pan value VP, which are currently being generated, are set as initial values in the RAM 23.
To memorize. That is, the tone volume initial value MVi, the microphone reverb initial value VRi, the microphone chorus initial value VCi, and the microphone pan initial value VPi are written to the RAM 23 as initial values. In step 32, the ROM 22 or RA
The tone volume setting value MVS, the microphone reverb setting value VRS, the microphone chorus setting value VCS, and the microphone pan setting value VPS are read from the talk switch template stored in advance in M23. In step 33, the microphone reverb value VR and the microphone chorus value VC are converted to the microphone reverb setting value VRS read out in the previous step 32.
And the microphone chorus setting value VCS. In this case, when the set value is a negative value, it is subtracted from each value, and when the set value is a positive value, it is added to each value. As a result, the microphone reverb value VR and the microphone chorus value VC instantaneously change to their respective target values. The musical sound volume MV and the microphone pan value VP gradually change by the processing of steps 34 to 3F. That is, in step 34, the microphone pan initial value V
The sum of Pi and the microphone pan set value VPS is defined as a pan target value VPo. In step 35, the tone volume initial value MVi
And the tone volume set value MVS to obtain the tone volume target value M
Vo. In step 36, it is determined whether or not the talk switch 2P is off.
Step 1 to Step 37 to Step 3F if ON
Is repeatedly executed. Step 37 to Step 3
In A, the current microphone pan value VP is equal to the microphone pan target value V
Until it becomes equal to Po, the incremental processing in step 39 or the decremental processing in step 3A is performed.
Similarly, in steps 3B to 3E, until the current tone volume value MV becomes equal to the tone volume target value MVo,
Step 3D incremental processing or Step 3E
Decremental processing. If the talk switch 2P is turned off during the incremental processing or the decremental processing in each step, YES is determined in step 36, and the process immediately proceeds to the next step 41. Y in step 37, step 3B and step 3F
If it is determined to be ES, the process proceeds to step 3G, where the determination process is repeated until the talk switch 2P is turned off. When the talk switch 2P is turned on, the process proceeds to step 41. The processing of step 41 is the talk switch 2
This is performed when P is turned off. Therefore, the current microphone reverb value VR and microphone chorus value VC are returned to the microphone reverb initial value VRi and microphone chorus initial value VCi in the RAM. Thereby, the microphone reverb value VR and the microphone chorus value VC instantaneously return to the values before the talk switch 2P is turned on. The tone volume MV and the microphone pan value VP gradually return to the original values by the processing of steps 42 to 4A. In steps 42 to 45, the incremental processing in step 44 or the decremental processing in step 45 is performed until the current microphone pan value VP becomes equal to the microphone pan initial value VPi. Similarly, in steps 46 to 4A, the incremental processing in step 48 or the decremental processing in step 49 is performed until the current tone volume value MV becomes equal to the tone volume initial value MVi. And Step 4
2. If YES is determined in step 46 and step 4A, the process proceeds to step 4B. In step 4B,
In step 31, each initial value stored in the RAM 23 is deleted.

The operation of the talk switch-on process will be described below with reference to FIG. FIG. 1 is a diagram showing how the volume value, the reverb value, the chorus value, and the pan value change by turning on / off the talk switch 2P. In the figure, the horizontal axis indicates time, and the vertical axis indicates a volume value, a reverb value, a chorus value, and a pan value. Note that the pan value shows a case where the value changes in the ± direction with the center being 0. First, when the talk switch 2P is turned on at the time t0, the microphone reverb value VR and the microphone chorus value VC instantaneously change as shown in FIGS. Microphone reverb value VR
Is a value (VRi-VRS) obtained by subtracting the microphone reverb set value VRS from the microphone reverb initial value VRi. The microphone chorus value VC is a value obtained by subtracting the microphone chorus set value VCS from the microphone chorus initial value VCi (VCi−VC
S). By step 34, the microphone pan target value VPo is set to the microphone pan initial value VPi and the microphone pan set value V
It becomes a value (VPi + VPS) obtained by adding PS. When the microphone pan set value VPS is a negative value, the microphone pan target value VPo is a value obtained by subtracting the microphone pan set value VPS from the microphone pan initial value VPi. Step 35
As a result, the tone volume target value MVo is the tone volume initial value MV.
i plus the tone volume set value MVS (MVi + MV
S). When the tone volume set value MVS is a negative value, the tone volume target value MVO is set to the tone volume initial value MVi.
From the tone volume set value MVS. Therefore, after this, the current microphone pan value VP and musical sound volume value MV linearly decrease as shown in FIGS.
To reach the microphone pan target value MVo and the musical sound volume target value VPo. Then, after time t1, the performance process is performed in this state. Then, when the talk switch 2P is turned off at the time t2, YES is determined in the step 3G, the processes in and after the step 41 are performed, and the values changed in the above-described steps are the values before the talk switch 2P is turned on. Returns to the initial value. At this time, the microphone reverb value VR and the microphone chorus value VC instantly return to the initial values at the time t2, and the tone volume value MV and the microphone pan value VP gradually increase linearly and return to the initial values.

In FIG. 1A, the time interval between the ON time t0 and the OFF time t2 of the talk switch 2P is sufficient, and the tone volume value MV decreases linearly. At the time t1, the tone volume target value VPo is reached. However, when the time interval between the on time t4 and the off time t5 of the talk switch 2P is short as shown in FIG. 5, the talk switch 2P is turned off before reaching the musical sound volume target value VPo. Therefore, the determination in step 36 is YES, and the processing in step 41 and subsequent steps is immediately performed. Therefore,
The tone volume value MV changes as shown in FIG. Although not shown, the microphone pan value VP changes in a similar manner.

In the above-described embodiment, the microphone reverb value V is set at time t2 when the talk switch 2P is turned off.
R is a value obtained by subtracting the microphone reverb set value VRS (VRi
−VRS) to the microphone reverb initial value VRi,
The case where the microphone chorus value VC changes from the value obtained by subtracting the microphone chorus set value VCS (VCi−VCS) from the microphone chorus initial value VCi has been described. However, as shown in FIG. Microphone pan initial value MVS and tone volume initial value VP
It may be changed at time t3 when S is reached. FIG.
Shows an example of a flowchart for making such a change. FIG. 7 differs from FIG. 4 in that the process of step 41 in FIG. 4 is moved immediately before the process of step 4B. As a result, the microphone reverb value V
The R and the microphone chorus value VC change as shown in FIG. Note that the microphone pan value VP and the musical sound volume value MV
It is needless to say that the microphone reverb value VR and the microphone chorus value VC may be changed in an arbitrary way where the value decreases or increases linearly.

In the above-described embodiment, FIG.
And (D), the tone volume value MV and the microphone pan value V
Although the case where P changes linearly has been described, control may be performed such that P changes linearly as shown in FIG. Also,
It goes without saying that it may be changed exponentially.
In the above-described embodiment, the ROM 22 or the RAM 2
3, the tone volume setting value MVS and the microphone reverb setting value VR from the talk switch template stored in advance.
S, the microphone chorus setting value VCS and the microphone pan setting value VPS have been described, but the user may be allowed to freely set each setting value in this template. Also, a plurality of the talk switch templates may be provided, and one may be selected from the plurality of templates and used. Each of the plurality of templates may be predetermined for each performance data.
In the above-described embodiment, four parameters of the reverb value, the chorus value, the pan value, and the volume have been described, but it goes without saying that other parameters can be similarly applied. Then, for all of the changeable parameters, a case where the parameter is changed instantaneously from the initial value to the target value and a case where the parameter is gradually changed may be selectively used. In the above-described embodiment, a case has been described where a change width such as volume is given as a set value, and a target value is calculated from this set value. A difference from the target value may be obtained, and the value may be gradually changed according to the difference. At this time, the time to reach the target value may be a fixed time, or the rate of change may be constant. Alternatively, a change rate may be given as a set value, the set value may be multiplied by the initial value, and the multiplied value may be set as a target value, and the value may be gradually changed based on a difference value between the initial value and the target value. . In addition to the case where a plurality of parameters are changed in the same manner, the values may be changed by variously combining the various changing methods described above, or the changing method may be set for each parameter. Is also good. In the above-described embodiment, the case where the rate of change of the musical sound volume value and the microphone pan value is constant is described, but it goes without saying that it may be changed as appropriate. In the above-described embodiment, the case where the talk switch is turned on by the first operation (pressing operation) of the talk switch 2P and turned off by the second operation has been described. It goes without saying that this may be done. Further, the talk switch on process may be performed only while the talk switch 2P is being operated (pressed). Further, instead of the talk switch, a similar function may be assigned to a foot switch that can be operated with a foot. Also, a template for a talk switch having a different setting value is assigned to each of a plurality of operators, and each parameter value is changed according to a template for a talk switch corresponding to one operated among these operators. Is also good. Although the description has been given of the case of the audio signal input via the microphone as the external input sound, it is needless to say that a tone signal from another electronic musical instrument or the like may be used. Also, it goes without saying that the technology of the present invention may be applied to a so-called karaoke apparatus. That is, the technique of the present invention is applied to a voice input unit to which a singing is input by a user, an accompaniment music reproduction processing unit for reproducing accompaniment data of a given music, and forming an accompaniment musical tone based on the reproduced accompaniment music data. An accompaniment musical tone forming section, a lyrics display section for displaying the lyrics of the music piece in accordance with the progress of the formed accompaniment musical tone, a background video display section for displaying an image serving as a background of the lyrics on a display as necessary, and accompaniment music data May be applied to at least a part of elements constituting the karaoke apparatus, such as a transmission / reception unit for exchanging various data with other apparatuses.

[0014]

According to the automatic performance device of the present invention, the first system sound (sound from a microphone or the like) can be directly generated by one-touch operation in which an operator operates a predetermined switch, or other performance sounds can be produced. There is an effect that the pronunciation can be made more prominent than that.

[Brief description of the drawings]

FIG. 1 is a diagram showing how a volume value, a reverb value, a chorus value, and a pan value change by turning on / off a talk switch.

FIG. 2 is a block diagram showing the overall configuration of the automatic performance device according to the present invention.

FIG. 3 is a diagram illustrating a first half of an example of a talk switch-on process performed by the automatic performance device according to the present invention.

FIG. 4 is a diagram illustrating a latter half of an example of a talk switch-on process performed by the automatic performance device according to the present invention.

FIG. 5 is a diagram showing how the volume value changes when the time interval between the ON time and the OFF time of the talk switch is very short.

FIG. 6 is a diagram showing another example of how a volume value, a reverb value, a chorus value, and a pan value change by turning on / off a talk switch.

FIG. 7 is a diagram showing a latter half of an example of a talk switch-on process for causing a change as shown in FIG. 6;

FIG. 8 is a diagram showing a situation where the sound volume value changes in a curved line.

[Explanation of symbols]

21 CPU, 22 ROM, 23 RAM, 24 floppy disk drive, 25 hard disk drive, 26 CD-ROM drive, 27 communication interface, 28 communication network, 29 server computer, 2A MIDI interface, 2B ...
Other MIDI devices, 2C: keyboard, 2D: key press detection circuit,
2E: Various switches, 2F: Switch detection circuit, 2G ...
Display, 2H ... Display circuit, 2J ... Sound source circuit, 2K
... Effect circuit, 2L ... Sound system, 2M ... Data and address bus, 2N ... Timer, 2P ... Talk switch, 2Q ... Microphone, 2R ... A / D converter

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-63-32595 (JP, A) JP-A-10-94085 (JP, A) JP-A-9-50284 (JP, A) 110651 (JP, A) JP-A-5-276462 (JP, A) JP-A-5-181446 (JP, A) JP-A-6-28896 (JP, U) JP-A-4-75397 (JP, U) (58) Field surveyed (Int.Cl. ⁷ , DB name) G10K 15/04 302 G10K 15/12 G10H 1/00 102 G10H 1/46 H04R 1/00-3/00

Claims (1)

(57) [Claims] 1. A change instructing unit, a volume changing unit, and an effect imparting unit.
Means, control means, and at least two or more sound signals
The change instructing means is capable of designating a change period, and the volume changing means controls the volume of the sound signal under the control of the control means.
Change, and the effect imparting means adds an effect corresponding to the effect set value to the sound signal.
And the control means, during the designated change period, the predetermined system
Change the effect set value for the
An automatic performance device that changes the volume of sound signals other than sound signals .