US 12,177,644 B2
Signalling of audio effect metadata in a bitstream
Nils Gunther Peters, San Diego, CA (US); Shankar Thagadur Shivappa, San Diego, CA (US); S M Akramus Salehin, San Diego, CA (US); Jason Filos, San Diego, CA (US); Siddhartha Goutham Swaminathan, San Diego, CA (US); and Ferdinando Olivieri, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Appl. No. 17/755,578
Filed by QUALCOMM Incorporated, San Diego, CA (US)
PCT Filed Oct. 29, 2020, PCT No. PCT/US2020/058026
§ 371(c)(1), (2) Date May 2, 2022,
PCT Pub. No. WO2021/091769, PCT Pub. Date May 14, 2021.
Claims priority of application No. 20190100493 (GR), filed on Nov. 4, 2019.
Prior Publication US 2022/0386060 A1, Dec. 1, 2022
Int. Cl. H04S 7/00 (2006.01)
CPC H04S 7/302 (2013.01) [H04S 2400/11 (2013.01)] 28 Claims
OG exemplary drawing
 
1. A method of manipulating a soundfield, the method comprising:
receiving a bitstream that comprises metadata and a soundfield description, the metadata including a first effect identifier that designates a type of first effect to apply to the soundfield description and at least one effect parameter value that defines how to apply the effect, and including a second effect identifier that designates a type of second effect to apply to the soundfield description;
parsing the metadata to obtain the first effect identifier, the second effect identifier, and the at least one effect parameter value;
determining to not apply, to the soundfield description, the second effect identified by the second effect identifier; and
applying, to the soundfield description, the first effect identified by the first effect identifier.