JPH0341498A - Musical sound data generating device - Google Patents

Abstract

PURPOSE:To obtain an automatic player which facilitates the generation of musical sound data by selecting an input sound signal consisting of sounds of plural parts, part by part, and generating musical sound data as to respective sound signals as data which can be played. CONSTITUTION:Musical sound signals of plural parts are inputted from a microphone 1 and converted by respective musical sound data generating circuits 3a - 3n into MIDI codes, which are multiplexed by a multiplexer 4 and stored in a storage device 5. For example, the generating circuit 3a among the generating circuits 3a - 3n inputs a musical sound waveform inputted from an amplifier 2 to a keyboard sound extracting circuit 30 and then the waveform is inputted to a pitch detecting circuit 31, a code length detecting circuit 32, a sound volume detecting circuit 33, and a timbre selecting circuit 34. Pitch, code length, sound volume, and timbre are selected by those circuits and their data are converted by a MIDI code converting circuit 35 into MIDI codes, which are outputted to the multiplexer 4.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application This invention relates to a musical tone data reproducing device for reproducing musical tone data for controlling an electronic musical instrument or the like based on actually played musical tones.

(b) Prior Art An electronic musical instrument (sound source device) is a device that generates and outputs musical tones based on input musical tone data.

Normally, this musical tone data is input directly from a performance device such as a keyboard, but a musical tone data storage device called a Siegen Su has also been put into practical use. This sequencer is a device that stores musical tone data input from a keyboard, numerical keyboard, etc., and sequentially outputs this musical tone data to a sound source device when instructed to do so. The sound source device to which the musical tone data is input produces musical tones in the same way as when the musical tone is actually played.

When storing musical tone data in such a sequencer, a real-time method and a step method have been put into practical use. The real-time method is a method in which a song is actually played using a performance device capable of generating musical tone data, such as an electronic musical instrument keyboard, and the musical tone data generated in real time is stored.

The step method is a method in which the pitch, note length, pronunciation level, etc. of each note are input and stored as numerical data using a data input device such as a ten-key keyboard.

(C) Problems to be Solved by the Invention In the above real-time method, a musical instrument (playing device) is played (
In addition, if there was a mistake in the performance, it would be recorded and used as is, making it difficult to memorize complete data. Furthermore, in the case of stomp input, key operations are required many times to input a single note, so inputting takes a very long time, and delicate note lengths and pronunciation levels cannot be set.

For this reason, in the "Score Data Creation Device" of Japanese Patent Publication No. 61-55679, the present applicant proposed a device that generates musical tone data from an input melody to create a score.
This method could only process single-note melodies, and could not handle performances of multiple parts. For this reason,
It has been impossible to input musical sounds played simultaneously by multiple musical instruments such as records and process them simultaneously.

The present invention is a musical sound data generation device that can generate musical sound data for each part from musical sounds in which a plurality of parts are being played simultaneously by using means for sorting into each part when musical sounds of multiple parts are input. The purpose is to provide

(d) Means for Solving the Problems This invention provides a sorting means for sorting input acoustic signals into parts, pitch data, note length data, etc. for each acoustic signal sorted into parts. The present invention is characterized in that it is provided with musical sound data generation means for generating musical sound data including volume data and timbre data as data that can be played on an electronic musical instrument.

(Q1 Function of the Invention The musical tone data generation device of the present invention sorts input musical tone signals for each part. The pitch, note length, volume, and timbre of each part are detected from the musical tone signals sorted for each part. These are converted into musical sound data that can be played on an electronic musical instrument (for example, old DI data).If this musical sound data is recorded in Siegen's format, it will be almost the same as the music played live on an electronic musical instrument. can be performed.

Note that the selection means for selecting musical tones for each part may be constructed of a bandpass filter or a filter that passes only a specific waveform.

(fl Embodiment) FIG. 1 is a block diagram showing the configuration of a musical tone data generation device which is an embodiment of the present invention. Data generation circuits 3a to 3n are provided.These musical tone data generation circuits 3a to 3n include an amplifier 2.
The amplified audio signal from the microphone 1 is input. A musical instrument played by a performer and a human voice are input to the microphone 1. That is, musical tone signals of a plurality of parts are inputted from the microphone 1. Further, the DI codes (musical tone data) output from each of the musical tone data generation circuits 3a to 3n are synthesized by the multiplexer 4 and stored in the storage device 5. The stored musical tone data is read out by the reproduction device 6 and reproduced as musical tone.

Each musical tone data generating circuit includes the following circuits (the keyboard musical tone data generating circuit 3a will be explained as a representative). The musical sound waveform inputted from the amplifier 2 is inputted to the keyboard sound extraction circuit 3o. The keyphoto sound extracted by this circuit is detected by the pitch detection circuit 31. The note length detection circuit 32 is input to the note M detection circuit 33 and the tone color selection circuit 34. These circuits detect and select the pitch, note length, and volume tone, and these data are input to the MIDI code conversion circuit 35. MIDI coat conversion circuit 35
generates an MTn+ code from various input data and outputs it to the multiplexer 4. Here old 1) I
A chord is data that expresses various musical tone elements such as three pitches and three pronunciation levels using a certain code. The keyboard sound extraction circuit 30 may be configured by a bandpass filter 2, which allows only a specific waveform to pass therethrough. Pitch detection circuit 3
1 may be constituted by a circuit that detects the fundamental frequency of the extracted waveform. The note length detection circuit 32 is constituted by a circuit that generates a tempo clock based on the tempo of the song and detects how many beats the musical tone continues based on this tempo clock. The volume detection circuit 33 is constituted by a circuit that detects the sound generation level (amplitude) using a voltage value.

The timbre selection circuit 34 is a circuit that selects the one closest to the input timbre data from among the timbre data preliminarily registered as a keyboard sound. The selection result is output as a voice number. Other par 1 (musical instrument) musical tone data generation circuits have similar configurations.

On the other hand, the human voice musical sound data generation circuit 3n detects the pitch, note length, volume, and pronounced sound from the human voice extracted by the human voice extraction circuit 40 to which the musical sound signal from the amplifier 2 is input. Detection circuit 31; note length detection circuit 32; It has a volume detection circuit 331, a sound generation detection circuit 42, and a multitone tone number generation circuit 41 for reproducing a multitone tone number. The detected pitch, note length, volume and dummy tone number are M
The signal is input to the DI code conversion circuit 43. The MIDI code generated by the MIDI code conversion circuit 43 and the sound generation (50 sounds) detected by the sound generation detection circuit 42 are input to the address generation circuit 44. The address generation circuit 44 specifies the memory address of the reproducing circuit 6 in which the waveform of the pronunciation is stored based on the pronunciation of the human voice lyrics. The address number generated by the address generation circuit is input to the multiplexer 4 in the same way as the old DI code and is stored in parallel with the MIDI code. In this way, by adding a dummy musical sound signal to human voice sounds, all hocalverts can be MI.
It can be converted into DI data, and even if the playback device does not have the above-mentioned address number recognition function, it is possible to replace the ho culvert with some musical instrument part and play it back.

Although the microphone 1 is used as the input device in this embodiment, it is also possible to connect a music playback device (tape recorder or record player) to the amplifier 2 to generate the old DI code from the already recorded music. You can also do it.

(G+ Effects of the Invention As stated above, the musical sound data generation device of this invention can generate musical sound data after separating each part from the musical sound signals of multiple parts actually played. It is possible to generate and store musical sound data such as old music chords.This makes it extremely easy to create musical sound data for automatic performance devices, and even those who cannot play a keyboard etc. can easily generate highly musical data. It becomes possible to generate.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of a musical tone data generation device according to an embodiment of the present invention. 3a to 3n musical tone data generation circuit.

Claims (1)

[Claims] (1) A sorting means for sorting the input acoustic signals for each part, and electronically converting musical sound data including pitch data, note length data, volume data, and timbre data for each acoustic signal sorted for each part. A musical sound data generation device comprising: musical sound data generation means for generating data that can be played on a musical instrument.