SOUND SIGNAL DOWNMIXING METHOD, SOUND SIGNAL ENCODING METHOD, SOUND SIGNAL DOWNMIXING DEVICE, SOUND SIGNAL ENCODING DEVICE, AND PROGRAM

Abstract

This sound signal downmixing method comprises: a delayed crosstalk addition step for, with respect to each of two channels, acquiring, as a delayed crosstalk-added signal of the channel, a signal obtained by adding an input sound signal of the channel and a signal obtained by delaying an input sound signal of the other channel and multiplying the delayed input sound signal by a weight value that is a predetermined value with an absolute value less than 1; a left-right relation information acquisition step for acquiring preceding channel information that is information indicating which of the delayed crosstalk-added signals of the two channels precedes, and a left-right correlation value that is a value indicating the magnitude of a correlation between the delayed crosstalk-added signals of the two channels; and a downmixing step for acquiring a downmixed signal by performing weighted addition of the input sound signals of the two channels such that the input sound signal of the preceding channel out of the input sound signals of the two channels is included in a larger proportion as the left-right correlation value is larger, on the basis of the left-right correlation value and the proceeding channel information.

SEP Database Augmented SEP Database

Explicitly Disclosed

Patent Type

Technology	Declaration Information			Specification Information				Explicitly Disclosed	Patent Type
Technology	Declaration Date	Declaration Reference	Declaring Company	Specification Information				Explicitly Disclosed	Patent Type
5G,4G	02/08/2023	ISLD-202307-063	NIPPON TELEGRAPH AND TELEPHONE CORPORATION	S1 TS Number: TS 126 250 Version No: ---- Illustrative part: ---- Release: ---- S2 TS Number: TS 126 251 Version No: ---- Illustrative part: ---- Release: ---- S3 TS Number: TS 126 252 Version No: ---- Illustrative part: ---- Release: ---- S4 TS Number: TS 126 253 Version No: ---- Illustrative part: ---- Release: ---- S5 TS Number: TS 126 254 Version No: ---- Illustrative part: ---- Release: ---- S6 TS Number: TS 126 255 Version No: ---- Illustrative part: ---- Release: ---- S7 TS Number: TS 126 256 Version No: ---- Illustrative part: ---- Release: ---- S8 TS Number: TS 126 258 Version No: ---- Illustrative part: ---- Release: ---- +7 -7				Yes	Basis Patent

Specification Information

Spec Number

Version Number

Section Number

Specification Information

Spec Number

Version Number

Section Number

Technologies

2G 3G 4G 5G

Family Information

All Granted Patents In Patent Family :

----

SEP Database Augmented SEP Database

Explicitly Disclosed

Patent Type

Publication No	Technology	Declaration Information			Specification Information				Explicitly Disclosed	Patent Type
Publication No	Technology	Declaration Date	Declaration Reference	Declaring Company	Specification Information				Explicitly Disclosed	Patent Type

Publication No	Technology	Declaration Information			Specification Information				Explicitly Disclosed	Patent Type	Status	National Phase Entries
Publication No	Technology	Declaration Date	Declaration Reference	Declaring Company	Specification Information				Explicitly Disclosed	Patent Type	Status	National Phase Entries
-----	-----	-----	-----	-----	S1 TS Number: ----- Version No: ----- Section No:----- Release:----- + -				-----	-----	-----	-----

WO2023032065A1

5G,4G

Title

SOUND SIGNAL DOWNMIXING METHOD, SOUND SIGNAL ENCODING METHOD, SOUND SIGNAL DOWNMIXING DEVICE, SOUND SIGNAL ENCODING DEVICE, AND PROGRAM

Application Number:

Publication Date:

Current Assignee:

Family ID:

Application Date:

Publication Country:

View on Espacenet

Priority Date:

Declaring Company:

Abstract

Specification Information

Specification Information

Technologies

Family Information

Technologies

Product

Use Cases

Services

Claim

Associated Portfolios

Note: