JP3412769B2 - Performance data processing method for electronic musical instruments - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a performance data processing method for an electronic musical instrument which is suitable for use in multiple recording of other performance data in synchronization with performance data that has already been recorded.

[0002]

2. Description of the Related Art In recent years, accompaniment has been added to lively played musical instrument sounds or human voices, or environmental sounds recorded at street corners, for example, have been incorporated into a song played at a predetermined rhythm. Making and playing are performed.
A method called synchronous multi-recording is used for such music composition and performance.

For example, an analog signal obtained by converting an analog sound such as the above-described musical instrument sound, singing voice, or environmental sound into an electric signal is sampled by, for example, a sampler and stored in a memory as PCM (pulse code modulation) data. At the very least, it is possible to compose or multiplex-record by recording the contents of the above-mentioned memory in multiplex in MTR in synchronization with the accompaniment sound recorded in, for example, MIDI format and recorded in MTR (multitrack recorder). A performance is performed by simultaneously reproducing the played musical instrument sound and the accompaniment sound.

However, it is usual that the PCM data obtained by sampling an analog signal with a sampler and the MIDI data for accompaniment tones that are separately prepared do not match in tempo. Therefore, in order to synchronize and record such a plurality of pieces of data, the following method has been conventionally used.

In the first method, PCM data obtained by sampling an analog signal with a sampler or the like is subjected to a predetermined process to be converted into MIDI data, and this converted M
MIDI of IDI data and accompaniment sounds created in advance
In this method, MIDI data is edited so as to be synchronized with the data, and synchronous multiple recording is performed.

The second method is a method of performing synchronous multiple recording using tap tempo. For example, the PCM data obtained by sampling an analog signal with a sampler is loaded into a memory, and the tempo of MIDI data prepared in advance as an accompaniment sound is adjusted by using tap tempo or the like. This is a method of recording while changing the tempo of MIDI data so as to be synchronized with the PCM data in. In this case, synchronous multiplex recording is performed while matching the tempo of MIDI data as an accompaniment sound with the recorded musical instrument sound or the like.

The third method uses a so-called hard disk recording method. That is, for example, using a hard disk of a computer, PCM data obtained by sampling an analog signal with a sampler or the like is directly written in the hard disk. And
MIs such as accompaniment sounds that are created in advance and recorded in the MTR, etc.
PC from hard disk in sync with tempo of DI data
Synchronous multi-recording is performed by reading M data, moving it on the time axis, editing by cutting and pasting, and sequentially recording. More specifically, PCM data (waveform data) read from the hard disk
Assign a patch to. Then, the desired waveform data is specified by setting the waveform read start address and the read end address of each patch, and the performance data is created by following the steps of setting the key zone of each patch and synchronizing it. Used as overdubbing data.

[0008]

However, the above-mentioned first method has a problem that when converting an analog signal into MIDI data, sound quality deterioration or conversion error occurs and the reliability is poor. Further, there is a problem that editing work for synchronizing the plurality of MIDI data is extremely difficult. Furthermore, a plurality of devices are required to perform the process of converting an analog signal into MIDI data and the editing process, and a great deal of labor is required to prepare and connect the devices, so that synchronous multiplex recording cannot be easily performed. There was also a problem.

Further, in the second method, particularly when recording a song having many types of rhythm instruments, PCM data corresponding to an analog signal and M prepared in advance as an accompaniment sound are used.
There is a problem that it is very difficult to synchronize with the IDI data. Moreover, since MIDI data that defines the tempo is changed and synchronized, there is a problem that the tempo of the recorded song is dominated by the tempo of the original musical instrument sound, which may be different from the intention of the composer. It was

In the third method, the PCM data obtained by sampling the analog signal with a sampler or the like is directly written to the hard disk, so that a large capacity hard disk for storing a huge amount of PCM data is required. However, there is a problem that the system for synchronous multi-recording becomes expensive. Further, there is a problem that it takes time and labor to move the PCM data on the time axis and to perform precise editing such as cut and paste.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a performance data processing method for an electronic musical instrument which can solve the above problems and simplify the process of creating performance data used for synchronous multi-recording.

[0012]

In order to achieve the above object, a method of processing performance data of an electronic musical instrument according to a first aspect of the present invention stores key number generation means for generating a key number and performance data. In the electronic musical instrument having a storage means for storing the performance data of sounds generated within a predetermined time, the performance data is sequentially stored in the storage means, and the performance data stored in the storage means is divided into a predetermined number on the time axis. It is characterized in that it is divided into blocks, and the blocked performance data is assigned to each key number generated by the key number generating means.

For the same purpose, an electronic musical instrument performance data processing method according to a second aspect of the present invention is an electronic device having a key number generating means for generating a key number and a storage means for storing performance data. In a musical instrument, performance data of sounds generated within a predetermined time is sequentially stored in the storage means, and the performance data stored in the storage means is divided into a predetermined number on the time axis to be divided into blocks, which are then divided into blocks. The generated performance data is assigned to each key number generated by the key number generating means, and when a key number is generated by the key number generating means, a sound is generated based on the performance data of the block corresponding to the key number.

For the same purpose, an electronic musical instrument performance data processing method according to a third aspect of the present invention is an electronic device having a key number generating means for generating a key number and a storage means for storing performance data. In a musical instrument, performance data of sounds generated within a predetermined time is sequentially stored in the storage means, and the performance data stored in the storage means is divided into a predetermined number on the time axis to be divided into blocks, which are then divided into blocks. The generated performance data is assigned to each key number generated by the key number generating means, and when the key number is generated by the key number generating means, the performance data of the block corresponding to the key number is used as the synchronous performance data to be synchronously over-recorded. It is characterized by outputting.

[0015]

According to the method of processing performance data of an electronic musical instrument of the present invention as set forth in claim 1, first, PCM data (for example, sampled sound such as musical instrument sound, singing voice, or environmental sound) is sampled. Waveform data) is stored in the storage means as performance data for a predetermined time. Then
The performance data stored in this storage means is divided into blocks on the time axis into a predetermined number. That is, since the performance data for the predetermined time stored in the storage means is stored according to the passage of time, it is divided into blocks, for example, so that each has the same capacity. Next, each of the blocked performance data is assigned to a key number generating means, for example, a key number generated on a keyboard or a key number included in a note-on or note-off message of MIDI data.

With this configuration, when a keyboard is pressed, for example, the performance data of the block assigned to the key number corresponding to the key is designated. Therefore, various performance data can be designated by appropriately selecting the key pressing order. For example, if the keys are pressed so that the order of designating each divided block is the order stored in the storage means, the performance data such as the original instrument sound, singing voice, and environmental sound can be reproduced. Also, by pressing a key to repeatedly designate a predetermined block, it is possible to reproduce performance data different from the performance data such as the original musical instrument sound, singing voice, and environmental sound.
This operation is the same when the key number of the note-on message of MIDI data is appropriately selected. This configuration is suitable for use in synchronous multiple recording, as will be described later.

According to the method of processing performance data of an electronic musical instrument of the present invention as defined in claim 2, in addition to the configuration of the invention as defined in claim 1, when a key number is generated by the key number generating means, The sound is generated based on the performance data of the block corresponding to this key number.

With this configuration, when a keyboard is pressed, for example, sound is produced based on the performance data of the block assigned to the key number corresponding to the key. That is, for example, instrument sounds, singing voices, environmental sounds, etc. sampled by the sampler are partially (only for one block) sounded. Therefore, various sounds can be produced by appropriately selecting the order of key depression. For example, if the keys are pressed so that the order of designating each divided block is the order stored in the storage means, the original musical instrument sound, singing voice,
Environmental sounds can be pronounced. In addition, if you press the key to repeatedly specify a predetermined block, the original instrument sound,
A part of singing voice, environmental sound, etc. can be repeatedly pronounced. This operation is the same when the predetermined key number is sequentially given by the note-on message of MIDI data.

According to a third aspect of the present invention, there is provided a musical performance data processing method for an electronic musical instrument, wherein the key number generating means generates a key number in addition to the configuration of the first aspect of the invention. The performance data of the block corresponding to this key number is output as synchronous performance data to be synchronously over-recorded.

With this configuration, when a keyboard is pressed, for example, the performance data of the block assigned to the key number corresponding to the key is output to the outside as synchronous performance data. That is, performance data such as musical instrument sounds, singing voices, and environmental sounds sampled by the sampler is partially output (for one block) to the outside. Therefore, various performance data can be output to the outside as synchronous performance data by appropriately selecting the order of key depression. For example, if the keys are pressed so that the order of designating each divided block is the order stored in the storage means, the original instrument sound,
Performance data that constitutes a singing voice, environmental sounds, etc. can be output to the outside as synchronized performance data. Further, by pressing a key to repeatedly designate a predetermined block, performance data in which a part of the original musical instrument sound, singing voice, environmental sound or the like is repeatedly generated can be externally output as synchronous performance data. This operation is the same when the predetermined key number is sequentially given by the note-on message of MIDI data.

When synchronous multi-recording is performed by using the present invention, for example, M recorded in advance and recorded in the MTR or the like is recorded.
An accompaniment sound based on IDI data is generated. A person who composes or plays the musical composition, while listening to the accompaniment sound, presses a key in synchronization with the accompaniment sound. If such key depression is performed so as to sequentially specify each divided block, the original instrument sound,
Performance data is generated in the order of singing voice, environmental sound, etc., and sound is generated based on the performance data. Therefore, the original instrument sound, singing voice, environmental sound, etc. can be synchronized with the accompaniment sound. At the same time, if the above performance data is output to the outside as synchronous performance data and recorded on a track other than the track on which the accompaniment sound of the MTR is recorded, for example, synchronous multiple recording can be realized.

Therefore, since it is not necessary to prepare various devices and perform detailed editing work in order to perform the synchronous multi-recording as in the conventional case, the process of creating the performance data used for the synchronous multi-recording is simplified. . In addition, since synchronous multi-recording can be performed by using the functions provided in the electronic musical instrument without preparing a special device, the range of application is widened, and an electronic musical instrument with higher added value can be realized.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a performance data processing method for an electronic musical instrument according to the present invention will be described in detail below with reference to the drawings. In order to realize this embodiment, an electronic musical instrument having at least a keyboard or MIDI interface as a key number generating means and a waveform memory as a storing means is used.

FIG. 1 is a diagram for explaining a performance data processing method for an electronic musical instrument according to the present invention. In this embodiment, first, as performance data, a predetermined amount of sample data as shown in FIG. 1A is prepared. As this sample data, for example, using a sampler, the original sound (instrument sound, singing voice,
Waveform data (PCM) that is pulse code modulated by sampling environmental sound) for a predetermined time (for example, about 30 seconds)
Data) can be used. P using sampler
Since the method of creating CM data is well known, its explanation is omitted. Note that the sample data is not limited to PCM data, and various data can be used as long as the original sound can be recorded and reproduced.

The PCM data created in this way is loaded into a waveform memory composed of, for example, a random access memory (RAM). The PCM data loaded in this waveform memory is the waveform data for the above-mentioned predetermined time, and will be stored along the elapsed time (time axis) as shown in FIG.

Next, as shown in FIG. 1B, the sample data stored in this waveform memory is a plurality of (S1,
S2, S3, ...) Are equally divided into blocks. This division processing can be realized by, for example, the processing of a central processing unit (CPU) included in the electronic musical instrument. The size of each block can be arbitrarily determined according to the characteristics of the original sound to be sampled or the tempo (described later) of the accompaniment sound. In this block formation, the read start address, read end address, read speed (frequency number), etc. of the blocked PCM data are determined.

The size of each block may be specified by an operator from an operation panel provided on the electronic musical instrument. According to such a configuration, there is an advantage that the operator can determine the optimum block size by trial and error.

Next, if necessary, the pitch of the blocked PCM data is adjusted and the read position is corrected. The pitch adjustment is performed when changing the pitch of the original sound. This pitch adjustment is specifically realized by changing the frequency number. The correction of the read position is a process of changing the read address and the read end address. This process is performed when the block of PCM data is not preferable.

Next, each of the divided blocks is assigned to each key of the keyboard as shown in FIG. 1 (C), for example. In FIG. 1C, the key S1 is added to the key of the key number C1.
, The block S2 is assigned to the key of the key number D1, the block S3 is assigned to the key of the key number E1, and so on, so that each block is sequentially assigned to each key of the keyboard. In the example shown in FIG. 1 (C),
Although the block is assigned only to the white key, it may be assigned to only the black key or both the white key and the black key.

The key assignment to each block can be realized by storing the correspondence between the key number and the block number (number given to each block) in the table. When a key is pressed in a state where a key is assigned to each block, the electronic musical instrument causes the waveform data corresponding to the tone color selected at that time (stored in the electronic musical instrument in advance). , Instead of reading out the PCM data of the block assigned to the key. Such an operation can be performed by, for example, the processing of the CPU incorporated in the electronic musical instrument.

With this configuration, when a key is pressed on the keyboard, a part of the original sound assigned to the pressed key (corresponding to one block) can be pronounced. Therefore, if the keys C1, D1, E1, ... Are pressed at predetermined time intervals, the PCM data is read in the order of blocks S1, S2, S3 ,. It should be noted that the start of sound generation based on the PCM data is determined depending on the key depression timing of the operator, as in a normal performance.

Further, in the electronic musical instrument to which the present embodiment is applied, the PCM data of the block read by pressing the key is provided for the sound generation as described above and can be output to the outside. Has been done.

Next, a method of synchronous multi-recording using the electronic musical instrument constructed as described above will be described.

MTR, for example, is used for the synchronous multiple recording. An accompaniment sound having a predetermined tempo is stored in advance in a predetermined track of the MTR as MIDI data, for example. When performing synchronous multi-recording, the accompaniment sound stored in this MTR is reproduced, and the operator
As shown in (D), while listening to the reproduced accompaniment sound, the keys C1, D1, E1, ... On the keyboard are pressed in order according to the tempo. As a result, the original sound and the accompaniment sound are sounded at the same time, and the waveform data (PCM data) of the original sound is sequentially recorded on the other tracks of the MTR.

In this case, if the operator presses the key in synchronization with the accompaniment sound, it is possible to perform multi-recording in which the accompaniment sound and the original sound are accurately synchronized. Further, as shown by the key E1 or F1 in FIG. 1D, if the key depression timing is intentionally shifted,
It becomes possible to perform overdubbing by changing the so-called "Nori".

By reproducing the waveform data of the original sound recorded in the MTR at the same time as the accompaniment sound as described above, a musical sound in which the tempo of the original sound and the tempo of the accompaniment sound are synchronized can be obtained.

In the above embodiment, as the sample data, P obtained by sampling the original sound with the sampler is used.
Although the CM data is used, it is also possible to use song data composed of MIDI data of a plurality of channels that have already been completed. In this case, it is not necessary to newly create sample data, and it is possible to perform overdubbing of an existing music piece in synchronization with a predetermined accompaniment sound.

[0038]

As described in detail above, according to the present invention,
It is possible to provide a performance data processing method for an electronic musical instrument that can simplify the process of creating performance data used for synchronous multi-recording.

[Brief description of drawings]

FIG. 1 is a diagram for explaining a performance data processing method according to an embodiment of the present invention.

[Explanation of symbols]

S1, S2, S3, ... Block C1, D1, E1, ... Keyboard

Claims (3)

(57) [Claims] [Claim 1, further comprising the steps of blocks is divided into a predetermined number of audio data on the time axis of the predetermined time of the sound to be input optionally, the predetermined number of blocks of the sound data of the predetermined number of keys in a step you stored in assignment storage unit in association respectively, in response to one of the predetermined number of keys, the sound
A step of reading a corresponding block of data from the storage means to generate a sound. 2. A stored in the storage unit performance data for predetermined period of time continuous sound input, divided into <br/> office constant the performance data stored in the storage unit on the time axis block However, the to allow reproduction of the continuous tone by operating the predetermined number of keys in that order, split <br/> associates each said predetermined number of blocks of said performance data to said predetermined number of keys Ri rely on performance data processing method of the electronic musical instrument that be stored. A step of 3. A blocking divided to a predetermined constant sound data on the time axis of the predetermined period of time continuous sound inputted optionally, the predetermined number of blocks of the sound data of the predetermined number a step you assigned in association respectively with the key, in response to the key operated on the basis of accompaniment data,
The corresponding block of the sound data is read from the storage means.
And outputting the sound data to process the performance data of the electronic musical instrument.