JPH04168491A - Musical sound reproducing device - Google Patents

Abstract

PURPOSE:To restrict the tone data to be transferred to a tone memory at minimum, and shorten the soundless time between music in the case that the same tone data exists in a sound source by transferring only the tone data which does not exist in the sound source. CONSTITUTION:A microcomputer 10 transfers a control soft for automatic performance from a floppy disk (FD) 28 previously, and reads out the corresponding performance data housed in RAM 12 on the basis of the specification of an input device 16, and transfers it to a sound source 22 after processing. In the microcomputer 10, a judging means 30 judges that the tone data, which is to be transferred to a tone memory of the sound source 22, exists in the performance data housed in the FD 28 or not, and in the case of NO, the tone data is transferred by a transferring means 32, and in the case of YES, transference is not performed. The microcomputer 10 also displays the performance condition in a CRT, and generates the musical signal on the basis of the performance data, and the performance is output through an amplifier 24 and a speaker 26. The tone data to be transferred is thereby restricted at minimum to shorten the time before starting the performance and the time between music.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a musical sound reproducing apparatus, and particularly to a musical sound reproducing apparatus that converts digital performance data into an electronic music signal and reproduces the same.

[Prior Art] Generally, this type of musical sound reproduction device is known as a karaoke device.

In recent years, in response to the miniaturization of devices and the miniaturization of recorded information, electronic music playback devices have been used as karaoke devices of this type, which include a built-in recording medium for storing digital musical tone information. As such digitized musical tone information, MID I (Musicai I
nstrumentDigitalInterfac
e) information is known, which is interface information for digitally communicating performance information of each musical instrument;
It is considered an international standard (MIDI is a registered trademark)
.

In a karaoke device using such an electronic musical instrument such as a synthesizer that plays MIDIID-typical performance data, tone data is stored in ROM (read-only semiconductor memory device) or RAM (readable and writable semiconductor memory device). ), and when performing, the stored timbre data is processed within the sound source as necessary to produce the desired sound.

In addition, in a computer music system that connects a computer and a sound source, the computer functions as an automatic performance device, but recent automatic performance software (for example, Music Club and Geitasha (both registered trademarks)) do not allow you to play songs. Before playing, the necessary tone data for each song is read from an external storage device such as a floppy disk or a hard disk, and transferred to the sound source device, making it possible to play with tones not found in the sound source.

[Problem 8 to be solved by the invention] In the conventional musical sound reproduction device described above, for example, in the case of a personal computer music system, a song that shares part of the tone data with the previously played song is played next. Even when playing, all the performance data of the previously played song was cleared, and each song's tone data, including tone data common to the previous song, was read from an external storage device such as a floppy disk or hard disk. However, there was a problem in that the amount of data transferred was large and the transfer time was long, which caused it to take a long time to start playing.

Furthermore, when playing a plurality of songs in succession, there is a problem in that there is a long period of time without playing between songs.

The present invention has been made in view of such conventional problems, and its purpose is to provide a musical sound reproduction device that reproduces digital performance data represented by MIDI information, in which the floppy disk or hard disk is Musical sound playback that can reduce the amount and time of timbre data transferred from an external storage device such as an external storage device to a sound source, shorten the time until a performance starts, and shorten the period of non-performance between songs. The goal is to provide equipment.

[Means for Solving the Problems] In order to solve the above conventional problems, the musical sound reproducing device of the present invention converts digital performance data into an electronic music signal and plays it back. a determining means for determining whether or not there is any timbre data to be transferred in a timbre memory storing timbre data of a sound source among performance data stored in an external memory device; If it is determined that there is no target timbre data in the sound source, the corresponding timbre data is transferred to the timbre memory inside the sound source, and if the target timbre data is in the timbre memory inside the sound source, , and a transfer means that does not transfer the corresponding tone data.

[Operation] The musical tone reproducing device of the present invention having the above configuration first includes a determining means or
Among the performance data stored in an external storage device such as a floppy disk or hard disk, it is determined whether or not there is any tone data to be transferred in the tone memory that stores tone data possessed by a sound source such as a synthesizer. .

Next, if the determination means does not have the desired tone data in the tone memory, read the tone data that is not in the tone memory from the transfer means or an external storage device such as a floppy disk or hard disk. do,
Transfer to the tone memory of the sound source.

Also, if the target tone data that you are about to transfer exists in the tone memory that stores tone data held by the sound source, stop reading the tone data from an external storage device such as a floppy disk or hard disk. ,
It is not transferred to the tone memory of the sound source.

In this way, the determination means always detects the timbre data in the timbre memory of the sound source, reads only the color data stored in the timbre memory from the external storage device, and transfers it to the timbre memory by the transfer means. , the amount of timbre data transferred to the timbre memory can be minimized, and as a result, the amount of timbre data transferred from an external storage device such as a floppy disk or hard disk to the sound source and the transfer time are reduced each time one song is played. This makes it possible to shorten the time until the performance starts and also shorten the period of non-performance between songs.

[Examples] Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

FIG. 1 shows a preferred embodiment in which the musical sound reproduction device according to the present invention is used as a personal computer music system using an electronic musical instrument that stores MIDI information in a storage medium and reads and reproduces this information. It is shown.

The device of this embodiment has a microcomputer 10 as a central control section, and this microcomputer 10 includes:
RAM12. ROM14. An input device 16 and a floppy disk drive (FDD) 18 are connected, and
Sound source 22 and amplifier 2 via sound source interface 20
4 and a speaker 26 are connected in sequence.

The input device 16 is a keyboard, a mouse, or the like, and is used to select a piece of music to be performed and to perform playback/stop operations.

The floppy disk drive 18 drives a floppy disk 28, reads performance data stored on the floppy disk 28, and transfers the performance data to the RAM. This floppy disk 28 stores performance data as well as control software for automatically playing music, and this performance data includes tone color data.

The microcomputer 10 transfers control software for automatically playing music from the floppy disk 28 to the RAM 12 via the floppy disk drive 18 and stores it (in some systems, it stores it in the ROM 14), and also controls the control software from the human-powered device 16. According to the instructions, the corresponding performance data in the RAM 12 is read out, processed, and sent to the sound source 22 through the sound source interface 20 as decodable data (
MIDI information) is sequentially transferred to the sound source 22.

The microcomputer 10 also uses a determining means 30 for determining whether or not there is tone data to be transferred in the tone memory storing the tone data of the sound source 22 among the performance data stored on the floppy disk 28.
If the determining means 3° determines that there is no target timbre data in the timbre memory, the corresponding timbre data is transferred to the timbre memory inside the sound source and stored in the timbre memory inside the sound source. If there is target tone data, the transfer means 32 does not transfer the corresponding tone color data.

Further, the microcomputer 10 controls the CRT controller to display information such as performance status on the CRT.

A sound source 10 processes MIDI information to generate a music signal according to performance data, and an amplifier 11 amplifies the music signal, and a speaker 12 outputs the music signal as a musical performance.

FIG. 2 is a block diagram of a portion of the sound source 22. As shown in FIG.

This sound source 22 includes a tone memory 34, an oscillator 36,
A filter 38, an amplitude 40, an LFO 42, and an effector 44 are provided.

The timbre memory 34 consists of a ROM or RAM that stores data obtained by digitally recording an acoustic musical instrument.

The oscillator 36 reads tone color data stored in memory and creates the source of the sound.

The filter 38 processes the sound of the oscillator 36.

Amplitude 40 is used to set the volume and determine how the sound is played.

The LFO 42 includes an oscillator 36, a filter 38,
Amplitude 40 is periodically modulated and changed to create the sources of vibrato, wah-wah, and tremolo.

The effector 44 applies effects to the output of the amplifier 4o, including reverb, delay,
It is now possible to add effects such as distortion.

Here, in the case where the tone color memory is composed of RAM, the tone data stored in the floppy disk 28 is transferred to the tone source 2 under the control of the microcomputer 10.
The sound source 22's ROM is transferred to the tone memory in the sound source 22.
It is now possible to perform using data other than the tones stored in the .

FIG. 3 is a flowchart showing the operating state of the microcomputer of this embodiment when determining and transferring timbre data. FIG. 4 shows the structure of the tone data file stored on the floppy disk 28. FIG. 5 shows the structure of the tone color header shown in FIG. 4.

Note that each time the transfer means 32 transfers tone color data to the tone color memory 34 of the sound source 22, the determining means 30 records the ID number of the tone color data in the RAMI 2 as ID number table data.

Therefore, based on the ID number table data in the RAM 12, the tone data already transferred to the tone color memory 34 can be known.

The timbre data determination and transfer operation will be explained below with reference to FIGS. 3 to 5.

First, the number of tones (N) necessary for the performance is read from the tone data file 46, and then the tone headers 48 are read out in order from N-1 (FIG. 3, SI).

As shown in FIG. 5, the tone header 48 includes a unique tone ID number 50 assigned to each tone (for example, a grand piano has
001, 3067 for classical guitar, etc.), the tone number 52 (or memory address) of the sound source that stores the tone, the start address 54 of the tone data (N) on the tone data file, and the tone data (N )Data of·
The size is 56.

Next, the tone ID number read from the tone header 48 and the tone ID number stored in the tone source 22 are successively compared (FIG. 3 82), and if the tone source 22 does not have the same tone ID number, the floppy disk The tone data 58 is read out from the timbre data 58 in FIG. 3 (83).
is transferred to the data start address 54 (FIG. 3, 54).

In this embodiment, the comparison in S2 is performed in RAM1
This is done based on the ID number table data stored in 2. That is, this table data represents the ID numbers of the tones stored in the sound source 22. Therefore, the determining means 3o compares the tone ID number read from the tone header 48 with the table data, and
2. It is determined whether the same timbre data is transferred to 2.

The processing operations of FIG. 3 81 to S4 described above are repeated the number of tones (N - 1,) to complete the tone data transfer process.

In addition, in the judgment shown in FIG. 58 is not read out, but the next tone header 48 is read out (the third
Figure 81).

In the manner described above, only the timbre data necessary for the performance can be transferred to the timbre memory of the sound source 22.

Therefore, compared to the conventional case where all tone data is transferred for each song, the amount of data to be transferred is smaller and can be transferred in a much shorter time.

The present invention is not limited to the above-described embodiments, and various changes can be made without departing from the spirit thereof. For example, although an example has been shown in which the floppy disk 28 is used as the external storage device, a hard disk drive may be freely used instead.

[Effects of the Invention] As explained above, the musical sound reproduction device according to the present invention does not transfer all the tone data necessary to play one song from an external storage device to a sound source as in the conventional method. , if all the sound sources have the same data, it is not transferred, and only the timbre data that is not in the sound source is transferred, which has the effect of minimizing the timbre data transferred to the timbre memory. .

As a result, each time a song is played, the amount and time of transferring tone data from an external storage device such as a floppy disk or hard disk to the sound source is reduced, which shortens the time it takes to start playing. This has the effect of shortening the period of non-performance between the two.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the overall configuration of a musical sound reproduction device according to the present invention. FIG. 2 is a block diagram showing the configuration of the sound source in FIG. 1. FIG. 3 is a block diagram showing the configuration of the sound source in FIG. A flowchart showing the operation status during data determination and transfer. Figure 4 is an explanatory diagram showing the structure of the tone data file stored on the floppy disk. Figure 5 shows the structure of the tone header in Figure 4. FIG. 10... Microcomputer 12... RAM 14... ROM 16... Input device 18... Floppy disk drive 22... Sound source 30... Judgment means 32... Transfer means 34... Tone Memory Agent Patent Attorney Inoue - (2 others) Figure 3 Figure 4 Figure 5

Claims (1)

[Claims] (1) In a musical sound playback device that converts digital performance data into electronic music signals and plays them back, the timbre memory stores the timbre data of the sound source among the performance data stored in an external storage device such as a floppy disk or hard disk. a determining means for determining whether or not there is tone data to be transferred; and when the determining means determines that there is no target tone data in the tone memory, the corresponding tone data is transferred to the sound source; A musical tone reproducing device comprising: a transfer means that transfers the tone color data to an internal tone color memory, and does not transfer the corresponding tone color data when there is target tone color data in the tone color memory of the sound source.