JPH03282595A - Automatic music playing recorder - Google Patents

Abstract

PURPOSE:To properly quantize performance information even when a tempo is varied by quantizing sound generation time based on tempo information corresponding to the progress of music. CONSTITUTION:A player sets a console panel 4 in recording mode to specify a melody track(MEL1) as a recording track and starts performance by operating a keyboard 1, and then the operation information of the keyboard 1 is sent to a tone generator 5 to generate a musical sound. Then the player sets the panel 4 in playback and recording mode to specify the MEL1 as a playback track and a rhythm track(RH) as a recording track, and dipresses switches A and B while listening to the reproduced melody sound to instruct the generation of a beat on a staff or a beat not on a staff, thereby recording them on the RH. Then when the MEL1 is specified as a track to be quantized, a CPU 6 quantizes the note-ON time of each melody sound recorded on the MEL1, generate each melody sound at timing accurately synchronized with the measure staffs and beats, and reproduces the music at a faithful tempo even if the tempo of the music is varied.

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to an automatic performance recording device used for creating and editing performance information.

``Prior art'' An automatic performance recording device that reads performance information stored in a recording medium and reproduces musical tones. Most modern automatic performance recording devices are equipped with a so-called quantize function, which allows musical notes to be sounded in exact synchronization with the beat or bar line of a piece of music.
Note-on times in performance information recorded on a recording medium can be quantized.

``Problems to be Solved by the Invention'' By the way, in conventional automatic performance recording devices, the reference times for quant quizzes, that is, the intervals at which beats or bar lines occur, are fixed at equal intervals. For this reason, if there is a ritardando or fermata in a song, the performance information after that point will not be quantized properly.
There is a problem that each piece of performance information may be moved to a measure that is shifted from the original measure, or each piece of performance information that should be quantized at the same time of occurrence may be assigned a different time of occurrence. Ta.

The present invention has been made in view of the above-mentioned circumstances, and it is an object of the present invention to provide an automatic performance recording device that can appropriately quantize performance information even when the tempo of a song changes.

"Means for Solving the Problem" The first invention is an automatic performance recording device that records performance information that instructs the generation of a desired musical tone on a recording medium, which includes tempo information that specifies the generation time of six beats in a piece of music. It is characterized by comprising an input means, a recording means for recording the performance information and the tempo information, and a quantization means for quantizing time information specifying a pronunciation time in the performance information based on the tempo information. It is said that

A second invention is characterized in that the tempo information includes information specifying the time of occurrence of a beat on the bar line and information specifying the time of occurrence of other beats.

[Operation] - Memory According to the first to second inventions, the pronunciation time in the performance information is quantized based on the tempo information according to the progress of the music piece. Therefore, when the tempo of a song changes, appropriate quantization is performed.

"Example" Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of an automatic performance recording device according to an embodiment of the present invention. In the figure, l is a keyboard, which is equipped with many keys and has a detection unit that detects six key depressions and Hfm. Also, 2 is ROM
This is a program memory that stores a control program that controls the operation of this automatic performance recording device. 3 is a performance memory for storing performance information created by this automatic performance recording device, and is realized by a semiconductor memory.

As shown in FIG. 2, this performance memory 3 includes a rhythm track RH that records information instructing the generation of beats, and a rhythm track RH that records performance information based on keyboard performance.
1. ...has. Further, in FIG. 2, the symbol A recorded on the rhythm track Rl-1 indicates a beat on the bar line, and the symbol B indicates a beat not on the bar line. 4
is an operation panel, which includes a mote switch for setting the operating mode, a track designation switch for designating the track to be recorded/played in the performance memory 3, a switch A1 for instructing the generation of beats on the bar line, and other beat switches. A switch B etc. for instructing generation is provided. Reference numeral 5 denotes a tone generator which generates musical tones (L) based on operation information on the keyboard L and performance information read out from the performance memory 4, and supplies it to the sound system. Reference numeral 6 controls the operation of the entire automatic performance recording device. C I) U (central processing unit l-). SB is a system 19 bus that interconnects each of the above components. Further, 7 is a timer that generates an interrupt pulse at predetermined intervals and supplies it to CP tJ 6.

The operation of this automatic performance recording device will be explained below.

The 4-1 performance stage operates the mote switch on the operation panel 4 to set the operating mote to the recording mote, and operates the track designation switch to designate the melody track to be recorded, for example, MEI, 1.

And the keyboard! Operate to perform. As a result, the operation information of the keyboard 1 is sent to the 1.--generator 5, and a musical tone is generated.

- On the other hand, in CP[J6, the count value of the time counter is set to "0" when the first key-on event on keyboard 1 is detected, and from then on, the interrupt pulse from timer 7 is 7, (1P 11
R! ,-*Ill I-hz; m/p袂I
When Q r< j (L W-k h, the CPU 6 adds the count value of the time counter as time information specifying the note-on time to the operation information, and stores it in the specified melody track MELI of the performance memory 3. This is written as performance information. FIG. 3(a) shows an example of the note-on time of each melody tone C, D, E, . . . written in the melody track MELI of the performance memory 3.

Next, the performer operates the mote switch on the operation panel to set the mode to a playback/recording mode in which playback of the performance information in the performance memory 3 and recording of the performance information in the performance memory 3 are performed simultaneously. Furthermore, the melody track MEL1 in which the performance information of the keyboard performance is recorded is designated as a playback track, and the rhythm track RH is designated as a recording track. Then, a start button (not shown) on the operation panel 2 is pressed. As a result, the clock counter in CPUB is cleared, and from now on, the melody track MEL of performance memory 3 is cleared.
Performance information is sequentially read out from I, and when the count value of the clock counter matches the time information of the performance information, a note-on signal is sent to the tone generator 5, and a melody tone corresponding to the performance information is generated.

Then, the performer grasps the tempo of the song by listening to the melody sound being played, presses switch A on the operation panel 4 at the timing when he wants to set the beat on the bar line, and presses switch B at the timing when he wants to set the beat on the bar line. Press down.

In this way, switch A as the song progresses.

B is pressed, and those ON events are sequentially supplied from the operation panel 4 to the CPU 6. During this time, the CPU G executes the rhythm track creation process shown in FIG. 4. That is, if neither the ON event of switch A nor the ON event of switch B is detected, step S
The determination results of Steps 1 and S2 are both rNOJ, and steps Sl and S2 are repeated again. Further, if an ON event of switch A is detected, the judgment result in step Sl becomes rY E S J, the count value t of the time counter at that point is stored in register La, and a measure is written in write event register Ci. Event A instructing the generation of a beat on the line is stored (step S3). Next, the contents of write event register Ci and register L
The contents of a and tb are the rhythm track RH of performance memory 3.
(step S5), and the process returns to step Sl.

Further, if an ON event of switch B is detected, the process advances to step S2 via step S1, and the determination result becomes rYEsl, and the count value t of the time counter at that point is stored in the register tb and written. An event B that instructs the generation of a beat that is not on a bar line is stored in the included event register Ci (step S4).

Next, the contents of the write event register Ci and the contents of register (a) are written to the rhythm track RH of the performance memory 3 (step S5), and the process returns to step S+.

By performing such processing, an instruction A for generating a beat on a bar line and an instruction B for generating a beat not on a bar line are sequentially recorded on the rhythm track R1-1. Figure 3(b)
exemplifies the occurrence time of six beats recorded on the rhythm track in this way, and shows the occurrence time of six beats when the tempo changes gradually as the song progresses. .

Then, when the performer operates a predetermined operator on the operation panel, specifies MELI as the track to be quantized, and instructs the start of quantization, the quantization process shown in FIG.
6.

First, the performance information of the order specified by the control register 1 is read from the knob track MEL1, and the note-on time is stored in the register LI+.
Step 5ll). Here, the control register l is set to rlJ at the time of starting this Quon Quiz process. Therefore, in this case, the note-on time of the first melody tone C recorded on the melody track MEL1 is stored in the register tn. Next, the rhythm track TIH
Among the occurrence times of the six beats A or B recorded in , the time closest to the contents of register in is searched (step 512). Next, the time obtained by the above search is the first
It is written to the original melody track MELI as the quantized note-on time of the th melody note C (step 513). Then, control renost 1 is incremented (step 514), and the process returns to step Sll. Thereafter, the same quantization process as described above is performed for the second and subsequent melody notes, E, and .

As a result of such processing, the melody track ME
The note-on time of each melody sound recorded in LI is the third
The image is quantized as shown in Figure (c). Therefore, when playing the performance information of this quantized melody track, the first melody note C is the first melody note of the first bar.
On the beat, the second melody note is on the third beat of the i-th measure,
The third melody note E is on the second beat of the second measure, the fourth melody note F is on the fourth beat of the second measure, and the fifth melody note G is on the first beat of the third measure. , the sixth melody note H on the fourth beat of the second bar, and so on, each melody note is produced at a timing accurately synchronized with the bar line and the beat. Also, in this case, the rhythm track [? The occurrence times of the six beats recorded in H are input by the performer as the song progresses, so if the tempo of the song at the time of recording changes, the song will be played back at a consistent tempo. .

Furthermore, in this automatic performance recording device, the generation instructions A for beats on the bar line and the generation instructions B for beats not on the bar line are recorded in the rhythm track of the performance memory 3 in a manner that distinguishes them. , B can be displayed based on the time axis direction. Note that in the above embodiment, the time information converted into M child is directly input into the melody track MELI, but the melody track MELI
Save the melody as is and add the melody to another track)
The key code from rack MELI and the time information from rhythm track Rl-1 may be written.

Effects of the Invention J As explained above, according to the present invention, performance information can be quantized appropriately even when the tempo of a song changes.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of an automatic performance recording device according to an embodiment of the present invention, FIG. 2 is a diagram showing the contents of a performance memory 3 in the embodiment, and FIG. 3 is a quantization performed by the embodiment. Figures 4 and 5 for explaining the processing are flowcharts for explaining the operation of the embodiment. - Keyboard, 2. Old program memory, 3.
・Performance memory, A, B...Input J switch, 4
...Operation panel, 5.Tone generator, 6
...CPU, 7...Timer.

Claims (2)

[Claims] (1) In an automatic performance recording device that records performance information that instructs generation of a desired musical tone on a recording medium, means for inputting tempo information that specifies the generation time of each beat in a piece of music; and the performance information and the tempo information. 1. An automatic performance recording device comprising: a recording means for recording a sound time; and a quantization means for quantizing time information specifying a sounding time in the performance information based on the tempo information. (2) The automatic performance recording apparatus according to claim 1, wherein the tempo information includes information specifying the time of occurrence of a beat on a bar line and information specifying the time of occurrence of other beats.