US 12,456,471 B2
Encoding device and method, decoding device and method, and program
Minoru Tsuji, Chiba (JP); and Toru Chinen, Kanagawa (JP)
Assigned to Sony Group Corporation, Tokyo (JP)
Appl. No. 17/790,455
Filed by Sony Group Corporation, Tokyo (JP)
PCT Filed Dec. 25, 2020, PCT No. PCT/JP2020/048729
§ 371(c)(1), (2) Date Jun. 30, 2022,
PCT Pub. No. WO2021/140959, PCT Pub. Date Jul. 15, 2021.
Claims priority of application No. 2020-002711 (JP), filed on Jan. 10, 2020.
Prior Publication US 2023/0056690 A1, Feb. 23, 2023
Int. Cl. G10L 19/008 (2013.01); H04R 3/04 (2006.01); H04S 7/00 (2006.01)
CPC G10L 19/008 (2013.01) [H04R 3/04 (2013.01); H04S 7/302 (2013.01); H04S 2400/11 (2013.01); H04S 2400/13 (2013.01)] 18 Claims
OG exemplary drawing
 
9. An encoding method performed by an encoding device, the method comprising:
encoding audio data of an object;
encoding metadata including position information of the object;
determining sense-of-distance control information for sense-of-distance control processing to be performed on the audio data;
encoding the sense-of-distance control information; and
multiplexing the encoded audio data, the encoded metadata, and the encoded sense-of-distance control information to generate coded data, wherein the sense-of-distance control information includes control rule information for obtaining a parameter used in the sense-of-distance control processing, and wherein the control rule information includes a plurality of change control points, each change control point having a distance value and an associated parameter value, the distance value defining a distance from a listening position to the object at which the control rules change from a first control rule to a second control rule different from the first control rule, and the parameter value defining a value of the parameter at the associated distance value.