Sound signal processor and sound signal processing method

Patent metadata

Field	Value
Publication number	US-11089422-B2
Application number	US-202016837494-A
Country	US
Kind code	B2
Filing date	Apr 1, 2020
Priority date	Apr 3, 2019
Publication date	Aug 10, 2021
Grant date	Aug 10, 2021

Abstract

A sound signal processor includes a memory storing instructions and a processor configured to implement the stored instructions to execute a plurality of tasks, the tasks including a receiving task configured to receive audio information, a sound source position setting task configured to set position information of a sound source based on the received audio information, and a sound image localization processing task configured to calculate an output level of a sound signal of the sound source for a plurality of speakers to thereby perform sound image localization processing of the sound source to localize a sound image of the sound source in a sound image localization position based on the set position information.

First claim

What is claimed is:

1. A sound signal processor comprising:
a memory storing instructions; and
a processor configured to implement the stored instructions to execute a plurality of tasks, including:
a receiving task configured to receive audio information;
a sound source position setting task configured to set position information of a sound source based on the received audio information; and
a sound image localization processing task configured to calculate an output level of a sound signal of the sound source for a plurality of speakers to thereby perform sound image localization processing of the sound source to localize a sound image of the sound source in a sound image localization position based on the set position information,
wherein the plurality of tasks executed by the processor further include another receiving task configured to receive the sound signal of the sound source;
wherein the receiving task receives the audio information through a first communication portion;
wherein the another receiving task receives the sound signal of the sound source through a second communication portion which is different from the first communication portion;
wherein the first communication portion is a network interface which is connectable to a network; and
wherein the receiving task receives the audio information through the network interface from the network.

2. The sound signal processor according to claim 1 ,
wherein the sound source position setting task sets the position information of the sound source based on three-dimensional coordinates.

3. The sound signal processor according to claim 1 ,
wherein the audio information includes information related to a sound strength; and
wherein the sound source position setting task sets the position information of the sound source based on the information related to the sound strength.

4. The sound signal processor according to claim 1 ,
wherein the sound source position setting task sets the position information of the sound source based on an order in which the audio information is received.

5. The sound signal processor according to claim 1 ,
wherein the audio information includes track information of the sound source; and
wherein the sound source position setting task sets the position information of the sound source based on the track information.

6. The sound signal processor according to claim 1 ,
wherein the received audio information includes audio information of a plurality of sound sources; and
wherein the sound image localization processing task receives a different sound signal for each sound source of the plurality of sound sources, and performs the sound image localization processing by using the different sound signals to localize sound images of the plurality of sound sources in different sound image localization positions.

7. The sound signal processor according to claim 1 ,
wherein the audio information includes pitch information.

8. The sound signal processor according to claim 1 , wherein the sound source position setting task is configured to set the position information of the sound source based on kinds of chords included in the received audio information.

9. The sound signal processor according to claim 8 , wherein the kinds of chords include a major chord, a minor chord, and a seventh chord.

10. A sound signal processing method comprising:
receiving audio information;
setting position information of a sound source based on the received audio information;
calculating an output level of a sound signal of the sound source for a plurality of speakers to thereby perform sound image localization processing of the sound source to localize a sound image of the sound source in a sound image localization position based on the set position information; and
receiving the sound signal of the sound source,
wherein the audio information is received through a first communication portion, and the sound signal of the sound source is received through a second communication portion which is different from the first communication portion;
wherein the first communication portion is a network interface which is connectable to a network; and
wherein in the receiving of the audio information, the audio information is received through the network interface from the network.

11. The sound signal processing method according to claim 10 ,
wherein the position information of the sound source is set based on three-dimensional coordinates.

12. The sound signal processing method according to claim 10 ,
wherein the audio information includes information related to a sound strength; and
wherein the position information of the sound source is set based on the information related to the sound strength.

13. The sound signal processing method according to claim 10 ,
wherein the position information of the sound source is set based on an order in which the audio information is received.

14. The sound signal processing method according to claim 10 ,
wherein the audio information includes track information of the sound source; and
wherein the position information of the sound source is set based on the track information.

15. The sound signal processing method according to claim 10 ,
wherein the received audio information includes audio information of a plurality of sound sources; and
wherein a different sound signal is received for each sound source of the plurality of sound sources, and the sound image localization processing is performed by using the different sound signals to localize sound images of the plurality of sound sources in different sound image localization positions.

16. The sound signal processing method according to claim 10 , wherein the position information of the sound source is set based on kinds of chords included in the received audio information.

17. The sound signal processing method according to claim 16 , wherein the kinds of chords include a major chord, a minor chord, and a seventh chord.

18. The sound signal processing method according to claim 10 ,
wherein the audio information includes pitch information.

19. An apparatus, comprising:
a first interface configured to receive and to output audio information;
one or more digital signal processors configured to receive the audio information from the first interface and to:
set position information of a sound source based on the received audio information; and
calculate an output level of a sound signal of the sound source for a plurality of speakers to thereby perform sound image localization processing of the sound source to localize a sound image of the sound source in a sound image localization position based on the set position information; and
a second interface configured to receive the sound signal of the sound source,
wherein the audio information is received through the first interface and the sound signal of the sound source is received through the second interface which is different from the first interface;
wherein the first interface is a network interface which is connectable to a network; and
wherein the audio information is received through the network interface from the network.

Assignees

• Yamaha Corp

Inventors

• Suyama Akihiko
• Aoki Ryotaro
• Fukuyama Tatsuya

Classifications

• G10H1/0091 Primary

  Means for obtaining special acoustic effects (combined with modulation G10H1/043) · CPC title

• H04S7/30 Primary

  Control circuits for electronic adaptation of the sound field · CPC title

• G10H1/0008

  Associated control or indicating means · CPC title

• G10H1/0066

  using a MIDI interface · CPC title

• G10H2210/305

  Source positioning in a soundscape, e.g. instrument positioning on a virtual soundstage, stereo panning or related delay or reverberation changes; Changing the stereo width of a musical source · CPC title