JPH0667658A - Music information recording and reproduction system - Google Patents

Abstract

PURPOSE:To enable a musical performance having exactly the same nuance even when recording and reproduction are performed by different devices by correcting characteristics of a musical performance, which are different by electronic musical instruments, among the electronic musical instruments. CONSTITUTION:A musical performance information recording means 12 records musical performance information inputted from an electronic musical instrument A and a correction information acquiring means 13 inputs correction information on the electronic musical instrument A from a musical performance information recording means 12 and also inputs correction information from an electronic musical instrument C as a reproducing means. Then a correction information arithmetic means 13 generates a table for converting the musical sound information of the electronic musical instrument A into information matching the electronic musical instrument C based on the pieces of correction information of both electronic musical instruments A and C and outputs the table as alteration information to a musical performance information altering means 15. Further, the musical performance information altering means 15 converts the musical sound information of the electronic musical instrument A inputted from the performance information recording means 12 into musical sound information for the electronic musical instrument C, and outputs it as corrected musical sound information to the electronic musical instrument C, which generates a playback performance sound according to the corrected musical sound information.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a musical tone information recording / reproducing system in which musical tone information generated by a performance device is reproduced by a reproducing device.

[0002]

2. Description of the Related Art There is known a device (sequencer) capable of recording the contents (musical sound information) played by a performance device such as an electronic musical instrument on a magnetic recording medium and reading the contents later. MID for devices such as electronic musical instruments and sequencers
Since data communication / recording is performed in a format conforming to the I standard, the musical tone information recorded in the sequencer can be reproduced by any device as long as it is a MIDI compatible electronic musical instrument. That is, since the key on / off signal and the signal indicating the pitch are standardized among the respective devices, the same melody and chord can be played regardless of which electronic musical instrument is given this data.

[0003]

However, according to the conventional standard, since only a part of data such as key-on / off signal and pitch data can be supplied, even if the same melody and the same chord are reproduced. Even if I could do it, I couldn't reproduce other factors such as volume balance and touch characteristics, so the atmosphere of the song was completely different.

For example, assume that the volume balance of two tones in an electronic musical instrument is 1.2: 1.0. When the performance information created to obtain the optimum performance effect with this balance is given to an electronic musical instrument with the same balance of 0.8: 1.0, the volume balance is completely reversed, and the song has a completely different atmosphere. There was a drawback that became.

In addition, in an electronic musical instrument which changes the volume and tone color of a musical tone according to the strength of touch, since the amount of change in touch and the amount of change in tone volume and tone color are different for each instrument, the same performance information is given. Even in some cases, the expression was completely different.

The present invention provides a musical tone information recording / reproducing system capable of converting data so that even when the electronic musical instrument for generating musical tone information and the electronic musical instrument for reproducing the musical tone information are different, the same volume balance and touch change can be performed. The purpose is to provide.

[0007]

SUMMARY OF THE INVENTION According to the present invention, a playing means for generating musical tone information by being played, a recording means for recording the musical tone information, and a recorded content of the recording device are read to perform a playing performance. Reproduction means, and contents of the musical tone information matched with the performance characteristics of the reproduction means on the basis of data representing performance characteristics of the performance means and data representing performance characteristics of the reproduction means. The calibrating means for calibrating is installed at any position between the playing means and the reproducing means.

[0008]

In the tone information recording / reproducing system of the present invention, tone information is generated when the performer operates (performs) the performance means. The recording means records this musical sound information. The reproducing means reads out the musical tone information recorded by the recording means and reproduces and plays it. As a result, the musical tone information (at least sounding / silenced, pitch, etc.) generated by the playing means is reproduced. Here, the calibrating means compares the performance characteristics conventionally assigned to the playing means and the reproducing means with each other, and based on this, the musical tone information is converted into the one matching the characteristics of the reproducing means.
As a result, it is possible to reproduce the idea of the musical composition played by the playing means as it is by the playing means.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a diagram showing a configuration example of the present invention. This configuration is a system using an electronic musical instrument A as a playing means, a sequencer B as a recording means, and an electronic musical instrument C as a reproducing means. The electronic musical instrument A comprises a musical tone information output means 10 and a calibration information output means 11. Musical sound information output means 1
0 outputs musical tone information. The musical tone information is information regarding musical tones including pronunciation / silence of musical tones and pitch. This information is output in the so-called MIDI standard format.
The musical tone information of the MIDI standard is information that can be played as it is by inputting it to another MIDI-compliant electronic musical instrument. The calibration information output means 11 outputs calibration information. The calibration information is, for example, data representing the volume balance of musical tones when two tones are sounded at the same time, and data such as a conversion curve from touch data (data indicating the strength of key depression) to volume data. These data are input to the sequencer B via the MIDI cable. Here, the MIDI format can send and receive user-specific data such as the above calibration information, in addition to predetermined data such as pitch and pronunciation / silence.

The sequencer B includes a performance information recording means 12, a calibration information acquisition means 13, a calibration information calculation means 14 and a performance information changing means 15. Performance information recording means 12
Records performance information input from the electronic musical instrument A. The calibration information acquisition means 13 inputs the calibration information of the electronic musical instrument A from the performance information recording means 12 and the calibration information from the electronic musical instrument C which is the reproducing means. Calibration information calculation means 14
Creates a table for converting the musical tone information of the electronic musical instrument A into the electronic musical instrument C based on the input calibration information of the electronic musical instruments A and C. This table is output to the performance information changing means 15 as change information. The performance information changing means 15 converts the musical tone information (of the electronic musical instrument A) input from the performance information recording means 12 into musical tone information for the electronic musical instrument C and outputs it to the electronic musical instrument C as calibrated musical tone information. The electronic musical instrument C forms a reproduced performance sound based on the calibrated musical sound information.

When the musical volumes of the electronic musical instruments A and C are made to be the same, the electronic musical instruments A and C must have information regarding the volume as calibration information. This calibration information is created as follows.

The following measurements are made on the electronic musical instruments A and C.

A sine wave of V (velocity) = 64 is formed by a sound source, amplified by an amplifier, and sounded from a speaker.
The gain of the amplifier is adjusted so that this volume becomes a predetermined volume (0 dB). Note that V = 64 is an intermediate velocity data.

A tone signal of each tone color is formed using a sound source. All velocity parameters at this time are V = 64.
And This musical tone signal is amplified by the adjusted gain and is output from the speaker, and its volume is measured. This volume value (dB) is the relative volume of this timbre.

Calibration information is a ratio of the measured relative sound volumes of a plurality of tones.

When two or more timbres are simultaneously pronounced and the volume balance of those timbres is the same in the electronic musical instruments A to C, the calibration information of the electronic musical instrument A is divided by the calibration information of the electronic musical instrument C. May be used as a correction value for each timbre.

2 to 6 are flowcharts showing the operation of the sequencer B.

FIG. 2 shows the main routine. When the power is turned on, the initialization operation is first executed (n
1). After this, the panel switch routine (n2), the switch processing operation (n3) and the recording / reproducing processing operation (n
Repeat 4). Here, the panel switch routine is an operation for detecting the operation of the panel switch.

FIG. 3 is a flow chart showing the switch processing operation. This operation is an operation for executing a process corresponding to the switch operation detected by the panel switch routine. In this flowchart, only the processing corresponding to the turning on of the start switch, the record switch, and the stop switch is described. Operations corresponding to other switches are omitted in this flowchart for the sake of simplicity. First, the start switch (n1
0), the record switch (n11), or the stop switch (n12) is turned on. When the start switch is turned on, the mode register MO
Set 2 to DE (n20). MODE = 2 indicates a reproduction mode, that is, an operation of reading out the performance information (musical tone information) recorded in the performance information recording means and causing the electronic musical instrument C to reproduce and perform. First, a predetermined address is set in the read pointer (n21), and 0 is set in COREREC (n22). CORRECT is a flag register indicating whether or not the tone information is calibrated. CORR
When ECT = 1, the tone information is calibrated. It is determined whether or not there is calibration information in the performance information header recorded in the performance information recording means 12 (n23). If calibration information is recorded in the header, this calibration information is recorded in the RAM (calibration information acquisition means 13) as performance side calibration information (n24).

Next, the electronic musical instrument C is inquired as to whether or not its own calibration information is stored (n25). When the calibration information is returned in response to this inquiry, this calibration information is recorded in the RAM as reproduction side calibration information (n27). A calibration table is created based on the performance-side calibration information and the playback-side calibration information recorded in the RAM (n2
8). Since the tone information can be calibrated by creating the calibration table, set 1 to COREREC (n2
9) Return.

When the record switch is turned on (n11), 1 is set in MODE. MODE
= 1 indicates the recording mode. The recording mode is an operation of recording the performance information input from the electronic musical instrument A in the performance information recording means 12. A predetermined address (empty area address) is set in the write pointer (n32), and an interrupt timer for generating a click sound for indicating the tempo to the performer is set (n33). After this, electronic musical instrument A
(N34), and if there is a response (n35), it is recorded in the header of this performance information as the performance side calibration information (n36).

When the stop switch is turned on (n12), MODE is set to 0 (n4).
0). MODE = 0 means a stop state. Further, an auto-off signal is sent to the musical sound currently being generated (n41).

FIG. 4 is a flow chart showing the recording / reproducing processing operation. This operation is an operation executed at regular time intervals. First, MODE is determined (n50). MOD
If E = 0, nothing is done and the process directly returns. M
If ODE = 1 (recording mode), it is determined whether or not performance information is input from the electronic musical instrument A (n55). If performance information is input, the input data is written at the position of the write pointer (n56). At the same time, the write pointer is advanced to the next area. On the other hand, MODE = 2 (playback mode)
In the case of, the tone information is read from the address of the read pointer on condition that the timing is a predetermined timing (n5
1). Judge COLREC (n52). CORR
If ECT = 1, the read tone information is corrected according to the information in the calibration table (n53). This calibrated tone information is output to the electronic musical instrument C (n54).

5 and 6 show the operation executed in the calibration table creating operation (n28).

FIG. 5 is a flow chart showing the balance calibration process. In this operation, a table (balance calibration table) for converting the volume balance of each tone color when two tone colors are simultaneously pronounced is created. First, the performance side calibration information is normalized (n60). This normalization processing is as follows. Of the calibration information expressed as the ratio of the relative volume values described above, only the tone color used for performance is read out, and the ratio having the minimum value of 1 is stored as the performance-side calibration information.
Next, the reproduction side calibration information is normalized (n61). Balance change information is calculated for each tone color based on the normalized calibration information and recorded in the balance calibration table (n62). The balance change information may be calculated by dividing the performance side calibration information by the reproduction side calibration information.

FIG. 6 is a flow chart showing the touch calibration processing operation. This operation is a process of creating a touch calibration table for calibrating the difference in touch characteristics (conversion curve when a volume parameter is generated from a touch intensity). First, the performance side calibration information is normalized (n65). This calibration process is performed by, for example, a process of linearly converting a touch intensity (x) -volume parameter (y) curve with a straight line of y = x.
Further, the reproduction side calibration information is normalized (n66). Calculate touch change information based on these normalized data,
Record in the touch calibration table (n67).

Although the configuration diagram of FIG. 1 is a block showing the functional configuration, the actual hardware configuration may be a microcomputer configuration in which the CPU accesses and reads the sequence memory. In this embodiment, the musical tone information read from the performance information recording means 12 is converted into the performance information converting means 15.
Is converted in real time and output to the electronic musical instrument C. However, all musical tone information is converted and stored in advance,
This may be read and output to the electronic musical instrument C.

FIG. 7 is a diagram showing another structure of the present invention. In this system, a structure for converting musical tone information is provided on the electronic musical instrument C '(reproducing means) side. The electronic musical instrument A'which is a playing means comprises a musical tone information output means 20 and a calibration information output means 21, and has the same calibration as that of the electronic musical instrument A. The sequencer B'includes performance information recording means 22. The performance information recording means 22 records the performance information (tone information, calibration information) generated by the electronic musical instrument A '. At the time of reproduction, this performance information is directly output to the electronic musical instrument C '. The electronic musical instrument C ′ has a calibration information acquisition unit 23, a calibration information storage unit 24, a calibration information calculation unit 25, a performance information conversion unit 26, and a tone synthesis circuit 27.

The calibration information storage means 24 stores data representing the performance characteristics of its own device (electronic musical instrument C '). Of the performance information output from the performance information recording means 22, musical tone information is input to the performance information converting means 26. Further, the calibration information of the performance information is input to the calibration information acquisition means 23. Further, the calibration information acquisition means 23 supplies the calibration information of the electronic musical instrument A ′ side and the calibration information of the electronic musical instrument C ′ input from the performance information recording means 22 to the calibration information conversion means 25. The calibration information conversion means 25 creates a calibration table based on these calibration information. This calibration table is supplied to the performance information conversion means 26 as conversion information. The musical performance information converting means 26 converts the musical tone information input from the musical performance information recording means 22 based on the calibration table to generate calibrated musical tone information and outputs it to the musical tone synthesizing circuit 27. The tone synthesis circuit 27 synthesizes tone signals based on the calibrated tone information.

In the system of FIG. 7, the sequencer B '(performance information recording means 22) may be omitted and the performance information of the electronic musical instrument A'may be directly input to the electronic musical instrument C'.

[0031]

According to the present invention, since performance characteristics different for each electronic musical instrument can be calibrated between the electronic musical instruments, performance information is recorded and reproduced by different devices (electronic musical instruments). But you can have them perform with exactly the same nuances.

[Brief description of drawings]

FIG. 1 is a diagram showing a musical sound information recording / reproducing system according to an embodiment of the present invention.

FIG. 2 is a flowchart showing the operation of a sequencer having the same configuration.

FIG. 3 is a flowchart showing the operation of the sequencer having the same configuration.

FIG. 4 is a flowchart showing the operation of the sequencer having the same configuration.

FIG. 5 is a flowchart showing the operation of the sequencer having the same configuration.

FIG. 6 is a flowchart showing the operation of the sequencer having the same configuration.

FIG. 7 is a diagram showing another configuration of the present invention.

[Explanation of symbols]

 11,21-Calibration information output means 13,23-Calibration information acquisition means 14,25-Calibration information calculation means 15,26-Performance information conversion means

Claims (1)

[Claims] 1. A musical tone information recording having a playing means for generating musical tone information by being played, a recording means for recording the musical tone information, and a reproducing means for reading the recorded contents of the recording device to perform a reproducing performance. / A reproducing system, wherein the musical tone information is adjusted to match the performance characteristics of the reproducing means based on the data representing the performance characteristics of the playing means and the data representing the performance characteristics of the reproducing means. A musical tone information recording / reproducing system characterized in that a calibrating means for calibrating is provided by being inserted at any position between the playing means and the reproducing means.