JP3316866B2 - Music processing unit - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tone processing apparatus for simultaneously performing fade-in / out control of an automatic performance sound and fade-in / out control of another tone signal such as an external input sound (singing, etc.).

[0002]

2. Description of the Related Art Performance data is stored in advance,
An automatic performance device that sequentially reads the data and automatically plays the music has been put to practical use. In addition to the form of playing the music using only the automatic performance device, the actual performance of the automatic performance device is such that the performer wants to sing while playing an instrument such as a guitar, and at the same time, the automatic performance device performs automatic accompaniment such as rhythm sounds. There is a performance in which performance and automatic performance are performed in parallel.

[0003] Many automatic performance devices are provided with functions such as fade-in and fade-out. In the latter performance form, there are cases where the guitar and vocals (songs) should be faded in / out at the same time as the automatic performance (automatic accompaniment) fades in / out. In this case, this is conventionally performed in the following manner. Fade in automatic performance and start playing guitar,
Gradually increase the vocal volume. further,
Automatically stop the performance after gradually reducing the volume for guitar and vocals. Since the player is playing a musical instrument such as a guitar, the volume is assigned to a pedal operator or the like.

[0004]

However, in this method, it is difficult to match the timing of the fade-in / out of the automatic performance with the fade-in / out of the pedal operation, and if the volume pedal is not operated during the performance. Because of this, there was a drawback that both playing and pedal operation were difficult.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a tone processing apparatus which can automatically fade in / out an automatic performance sound and another tone.

[0006]

According to a first aspect of the present invention, there is provided an automatic performance means for generating an automatic performance sound based on performance data stored in advance, and a first volume control means for controlling a volume of the automatic performance sound. Second volume control means for controlling the volume of a second musical tone other than an externally input or internally generated automatic performance tone, and fade- in or fade -out.
Fade instruction means for an indication of bets, the fade-<br/> the first in response to an instruction, fades the volume of different increasing characteristics to gradually increase the volume to the second volume control means Supply control information and fade out
To the first and second volume control means in response to the instruction of
Different reduction characteristics to gradually reduce the volume
And having a fade information supplying means for supplying a fade volume control information. The invention of claim 2 is
Automatic performance means for generating automatic performance sounds based on performance data stored in advance, first volume control means for controlling the volume of the automatic performance sounds, automatic performance sounds input from outside or internally generated Volume control means for controlling the volume of a second musical tone other than the second tone, and fade- in or fade-in.
Fade instructing means for instructing out , and the fade
In response to said in-instructions first, supply one of the fade-in volume control information of the plurality of fade-<br/> volume control information to gradually increase the volume to the second volume control means And in response to the fade-out instruction,
The volume is gradually reduced with respect to the first and second volume control means.
Of multiple fade-out volume control information
And having Re of the fade information supply means for supplying a fade-out volume control information.

[0007]

According to the tone processing apparatus of the present invention, the automatic performance sound, the second
Volume control means for controlling the output volume of the musical tone
And a fade information supply means for supplying volume control information for fade-in / fade-out. As a result, the automatic performance sound,
Volume control of multiple types of fade-in / fade-out and different fade-in / fade for the second tone
The volume control of the lockout is performed.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a tone processing apparatus according to an embodiment of the present invention; The tone processing device of this embodiment is a device which also functions as an automatic performance device and a mixer. In addition to automatically playing the accompaniment sound, the vocal sound and the guitar performance sound (external input sound) are input and mixed with the automatic accompaniment sound. It has a function to output. The external input sound and the automatic accompaniment sound can be automatically faded in / out simultaneously by a trigger operation (foot switch operation), and the automatic accompaniment sound and the external input sound can be cross-fade.

FIG. 1 is a block diagram of the musical sound processing apparatus. The operation of the tone processing device is controlled by a microcomputer (hereinafter referred to as a microcomputer) 10. Microcomputer 1
To 0, a volume control circuit 11, an automatic performance circuit 19, and an effect circuit 13 are connected, and a foot switch / volume 16, a display circuit 17, and switches 18 are also connected. The automatic performance circuit 19 includes a performance data memory 36.
(See FIG. 4), the performance data is read out based on a control signal input from the microcomputer 10 or the like, and an automatic performance is performed. This automatic performance sound is input to the effect circuit 20. On the other hand, musical sounds (externally input sounds) such as vocals and guitars input from the outside are converted into digital signals by the A / D conversion circuit 12 and then input to the effect circuit 13. As shown in FIG. 5, the effect circuits 13 and 20 add an effect selected arbitrarily from among the effects of the compressor, distortion, equalizer, chorus, and reverb to the musical sound and output it.

The output signals of the effect circuits 13 and 20 are both input to an adder 14. The adder 14 adds the input automatic performance sound and the external input sound. The added tone signal is input to the D / A conversion circuit 15. The D / A conversion circuit 15 converts the input signal into an analog signal and outputs it.

Also, a foot switch / volume 16
Is for the player to input a trigger for fade-in / out and to control the volume freely during the music, and is connected to the terminals 78 and 79 in FIG. The display circuit 17 includes LEDs 70 to 75 indicating the set effects.
And an LCD display 76. The LCD display displays the number of the currently selected song.
The switches 18 include effect selection switches 60 to 65 and another switch group 66. The switch group 66 also includes a switch for selecting a fade waveform (FIGS. 3A and 3B).

FIG. 2 is a block diagram of the volume control circuit 11. This circuit outputs volume control data for fade-in / out. The control unit 30 includes the microcomputer 1
0 is connected. The control unit 30 includes a read circuit 3
1 is connected. Further, a fade-in table 32 and a fade-out table 33 are connected to the read circuit 31. The readout circuit is an effect circuit 13,
It is connected to an automatic performance circuit 19 and outputs volume control data to these circuits. The fade-in table 32 stores volume change values for realizing various fade-in waveforms shown in FIG. Further, the fade-out table 33 stores volume change values for realizing various fade-out waveforms shown in FIG. The control unit 30 instructs the readout circuit 31 to read out the fade-in table 32 or the fade-out table 33 based on the fade-in / out instruction signal input from the microcomputer 10. Further, when a fade-out end signal is sent from the readout circuit 31, a stop instruction signal for automatic performance is output to the automatic performance circuit 19. The readout circuit 31 reads out the designated fade-in / out waveform data in accordance with an instruction from the control unit 30 and outputs the read-out waveform data to the effect circuit 13 and the automatic performance circuit 19 as volume control data. The fade-in table 32,
The fade-out table 33 may be composed of a ROM and may store a plurality of change data in advance.
It may be configured by AM so that the user can freely store the waveform.

FIG. 4 is a block diagram of the automatic performance circuit.
The automatic performance circuit reads out the automatic performance data stored in the performance data memory 36 by the reading circuit 35 and inputs the automatic performance data to the tone generator circuit 37 to form and output a musical tone signal.

The performance data memory 36 stores automatic performance data of a plurality of music pieces. For each song, three types of patterns are stored: an intro pattern read at the time of fade-in, a normal pattern repeatedly read during the progress of the song, and an ending pattern read at the time of fade-out. The read circuit 35 is the microcomputer 1
The performance data memory 36 is accessed based on a start signal, a pattern change signal, and a tempo instruction signal input from 0. At the time of fade-out, a signal (stop signal) indicating the end of the fade-out is sent to the volume control circuit 1.
Input from 1.

The automatic performance data read by the read circuit 35 is input to a tone generator 37. The tone generator 37 forms a tone signal based on the input data. The formed tone signal is multiplied by the volume control data in the multiplier 38 and output to the effect circuit 20. The volume control data input to the multiplier 38 is input from the volume control circuit 11, and the volume control at the time of fade-in / out is performed by the multiplier 38.

FIG. 5 is a block diagram of the effect circuits 13 and 20. This effect circuit uses a compressor (CO
MP: effect of compressing the amplitude to distort the musical tone) circuit 40,
A distortion (DIST: an effect of cutting the amplitude of a certain level or more to distort the musical tone) circuit 41, an equalizer (EQ: an effect of changing the transmittance for each frequency component of the musical tone to change the musical sound waveform), and a chorus (CHO:
The effect of adding a fine groan to the tone to make it sound like a plurality of tones sounding simultaneously) circuit 43, reverb (RE
V: reverberation effect) A circuit in which five types of effect circuits of a circuit 44 are connected in series. Selector 5 for each effect circuit
Nos. 0 to 54 are connected, and either the musical sound passed through the effect circuit or the skipped musical sound is input to the next stage. Whether these effects should be applied to the musical tone is determined by the effect selection switches 60 to 6 in the panel external view of FIG.
4 can be selected. The tone signal that has passed through these effect circuits and selectors is output after being multiplied by the volume control data input from the volume control circuit 11 by the multiplier 45. That is, volume control at the time of fade-in / out is performed by the multiplier 45. However,
The effect circuit 20 does not include the multiplier 45.

In the operation panel shown in FIG. 6, a switch 65 is a fade-in / out mode selection switch. When the foot switch is operated while the switch is turned on, the fade-in / fade-out volume control is automatically performed. The LEDs 70 to 75 are L for displaying on / off of the respective selection switches.
ED.

The operation of the tone processing apparatus having the above configuration will be described. When the player wants to start / stop automatic performance (automatic accompaniment) by fade-in / out while singing a song or playing a guitar, he turns on the fade-in / out mode switch 65 and then turns on the foot switch 16. Turn on. When the foot switch 16 is turned on, the automatic performance starts to fade in.
Vocal sounds and guitar sounds input from the external input terminal 77 (see FIG. 6) also fade in. Thereafter, the normal automatic performance mode is set, and the normal pattern is repeatedly performed. An interlude pattern may be inserted in the middle. Further, when ending the music, when the foot switch 16 is turned on again, the automatic performance pattern shifts to the ending pattern, and the volume control circuit 11 reads out change data for fade-out from the fade-out table 33. The change data is output to the automatic performance circuit 19 and the effect circuit 13. As a result, both the automatic performance and the external sound gradually fade out simultaneously. When the fade-out is completely completed, the control unit 30 of the volume control circuit 11 outputs a stop signal to the automatic performance circuit 19. Automatic performance is stopped based on this signal.

In this way, only by operating the foot switch, not only automatic performance but also external input sounds such as vocals and guitar can be simultaneously faded in / out.

In this embodiment, the volume of both the automatic performance sound and the external input sound is controlled by the same fade-in / out waveform. However, different waveforms may be used. It is also possible to apply a fade-in to an external input sound and a fade-out to an automatic performance sound (and vice versa) at the same time to perform cross-fading.

In this embodiment, an effect circuit is separately provided for an external input sound and an automatic performance sound. However, if the same effect is to be applied, both sounds are added and synthesized and then passed through the effect circuit. You may. Furthermore, the effect circuit may be omitted and a device for controlling only the sound volume may be used.

The automatic performance is not limited to one in which the same pattern is repeated, but may be one in which sequence data for one music piece is sequentially read.

Further, the volume control data is not limited to the system read out from the table, but may be a system that generates the volume control data in real time based on a predetermined algorithm. The volume control data may be externally output so that an external device can be remotely controlled.

In this embodiment, the volume control between the external input sound and the automatic performance sound is shown. However, in an electronic musical instrument with an automatic performance function having a keyboard, the automatic performance sound and the internally generated manual performance sound are compared. It is possible to control the volume in the same manner.

[0025]

[0026]

As described above, according to the present invention, the automatic performance sound and other musical sounds can be faded by separate volume control means.
Based on the fade volume control information supplied by the
Control enables various fade controls.
Ri, it is possible to further increase the performance effect.

[Brief description of the drawings]

FIG. 1 is a block diagram of a tone processing apparatus according to an embodiment of the present invention;

FIG. 2 is a block diagram of a volume control circuit of the musical sound processing device.

FIG. 3 is a diagram showing a fade-in table and a fade-out table of the volume control circuit;

FIG. 4 is a block diagram of an automatic performance circuit of the musical sound processing device.

FIG. 5 is a block diagram of an effect circuit of the musical sound processing device.

FIG. 6 is a diagram showing an operation panel of the musical sound processing apparatus.

[Explanation of symbols]

11-volume control circuit, 13-effect circuit, 19-automatic performance circuit

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) G10H 1/46 G10H 1/00 102

Claims (2)

(57) [Claims] 1. Automatic performance means for generating an automatic performance sound based on performance data stored in advance; first volume control means for controlling the volume of the automatic performance sound; Second volume control means for controlling the volume of a second musical tone other than the automatic performance sound generated in step (a), fade instructing means for instructing fade- in or fade-out , and said first in response to the fade - in instruction. gradually supplying a fade volume control information having different increasing characteristics in order to increase the volume to the second volume control means, before
The first and second sounds in response to the fade-out instruction.
To reduce the volume gradually for the quantity control means
Tone processing apparatus characterized by having a fade information supply means for supplying Re a fade volume control information different reduction characteristics. 2. Automatic performance means for generating an automatic performance sound based on performance data stored in advance; first volume control means for controlling the volume of the automatic performance sound; Second volume control means for controlling the volume of a second musical tone other than the automatic performance sound generated in step (a), fade instructing means for instructing fade- in or fade-out , and said first in response to the fade - in instruction. , either fade Lee among the plurality of fade-in volume control information to gradually increase the volume to the second volume control means
Supplying a down volume control information, the instructions of the fade-out
In response to the first and second volume control means gradually
Multiple fade-out volume control information to reduce the volume
And a fade information supply unit for supplying any one of fade-out volume control information among the information .