Musical sound generation method, musical sound generation device, and recording medium

Patent metadata

Field	Value
Publication number	US-11735152-B2
Application number	US-202017012061-A
Country	US
Kind code	B2
Filing date	Sep 4, 2020
Priority date	Sep 4, 2019
Publication date	Aug 22, 2023
Grant date	Aug 22, 2023

Abstract

A musical sound generation device includes a control device which, when a performance operator among a plurality of performance operators has been operated for a part that has been set to sound a predetermined number of simulated voices of an analog synthesizer, assigns a sounding parameter of one or two or more voices, which form a timbre of a simulated voice of the analog synthesizer corresponding to the operated performance operator and are selected from a plurality of sounding voices, to a sound generation circuit, and assigns, to the sound generation circuit, an information set selected from a plurality of information sets and each include a variation value that applies a variation to the sounding parameter of the one or two or more voices, and a sound generation circuit that performs a sounding process of the one or two or more voices using the sounding parameter and the information set.

First claim

What is claimed is:

1. A musical sound generation method comprising:
a control device assigning, when a performance operator among a plurality of performance operators has been operated for a part that has been set to sound a predetermined number of simulated voices of an analog synthesizer, at least one sounding parameter being a pitch of one or pitches of two or more voices, which form a timbre of a simulated voice of the analog synthesizer corresponding to a note number of the operated performance operator and are selected from a plurality of voices capable of being sounded, to a sound generation circuit;
the control device assigning, to the sound generation circuit, an information set selected from a plurality of information sets which are prepared for the predetermined number of simulated voices and each include a pitch variation value that applies a pitch variation to the sounding parameter of the one or two or more voices; and
the sound generation circuit performing a sounding process of the one or two or more voices using the sounding parameter and the information set,
wherein, when the one or two or more voices are generated using a plurality of oscillators included in the sound generation circuit, the information set includes pitch variation values respectively corresponding to the oscillators.

2. The musical sound generation method according to claim 1 , wherein the predetermined number is determined according to the number of sounding voices of the analog synthesizer to be simulated.

3. The musical sound generation method according to claim 1 , wherein the plurality of information sets are prepared for a part that has been set to sound simulated voices of the analog synthesizer and are not prepared for a part that has been set to sound voices other than the simulated voices of the analog synthesizer.

4. The musical sound generation method according to claim 1 , wherein the pitch variation value is calculated from a random number and information indicating a variation depth, or a value indicating a variation measured using an actual analog synthesizer device is used as the pitch variation value.

5. A musical sound generation method comprising:
a control device assigning, when a performance operator among a plurality of performance operators has been operated for a part that has been set to sound a predetermined number of simulated voices of an analog synthesizer, at least one sounding parameter being a pitch of one or pitches of two or more voices, which form a timbre of a simulated voice of the analog synthesizer corresponding to a note number of the operated performance operator and are selected from a plurality of voices capable of being sounded, to a sound generation circuit;
the control device assigning, to the sound generation circuit, an information set selected from a plurality of information sets which are prepared for the predetermined number of simulated voices and each include a variation value that applies a variation to the sounding parameter of the one or two or more voices; and
the sound generation circuit performing a sounding process of the one or two or more voices using the sounding parameter and the information set,
wherein unused information sets among the plurality of information sets are registered in an unused list,
each of the information sets in the unused list includes identification information of a performance operator that has triggered assignment to the sound generation circuit in the past, and
when an information set is selected from the unused list in response to operation of a certain performance operator among the plurality of performance operators, an information set including identification information of the certain performance operator is preferentially selected.

6. The musical sound generation method according to claim 5 , wherein, when an information set is assigned to the sound generation circuit, the information set is added with information indicating reference to a variation value by the sound generation circuit and removed from the unused list and, when sounding of the one or two or more voices has ended, the information indicating reference to a variation value by the sound generation circuit is removed and the information set is again registered in the unused list.

7. The musical sound generation method according to claim 5 , wherein a voice having substantially the same features as a voice generated according to the operation of the certain performance operator is generated as a voice of the analog synthesizer when the certain performance operator has been operated again immediately after the operation of the certain performance operator ends.

8. The musical sound generation method according to claim 5 , wherein the identification information of the performance operator is the note number.

9. A musical sound generation device comprising:
a first predetermined number of real voices provided for a plurality of parts;
a number of virtual voices, whose upper limit is a second predetermined number, provided for each of the parts;
a real voice assigner configured to assign at least one real voice among the first predetermined number of real voices for operation of a performance operator for a part that has been set to sound simulated voices of an analog synthesizer;
a virtual voice assigner configured to assign one of the virtual voices of the part; and
a sound generation circuit configured to generate a musical sound on the basis of a sounding parameter being a pitch of the assigned real voice corresponding to a note number of the performance operator and a pitch variation value of the assigned virtual voice,
wherein the real voices are shared by the plurality of parts, and
wherein, when the one or two or more voices are generated using a plurality of oscillators included in the sound generation circuit, the information set includes pitch variation values respectively corresponding to the oscillators.

10. The musical sound generation device according to claim 9 , wherein the second predetermined number are determined according to the number of sounding voices of the analog synthesizer to be simulated.

11. The musical sound generation device according to claim 9 , wherein identification information of the performance operator is the note number.

12. The musical sound generation device according to claim 9 , wherein the second predetermined number is smaller than the first predetermined number.

Assignees

• Roland Corp

Inventors

• Iwamoto Yoshinori
• Isogawa Takeshi

Classifications

• G10H5/002 Primary

  Instruments using voltage controlled oscillators and amplifiers or voltage controlled oscillators and filters, e.g. Synthesisers · CPC title

• G10H1/06

  Circuits for establishing the harmonic content of tones {, or other arrangements for changing the tone colour} · CPC title

• G10H1/183 Primary

  Channel-assigning means for polyphonic instruments · CPC title

• G10H5/10

  using generation of non-sinusoidal basic tones, e.g. saw-tooth {(G10H5/06 takes precedence)} · CPC title

• G10H7/04

  in which amplitudes are read at varying rates, e.g. according to pitch · CPC title