US 12,081,961 B2
Signal processing device and method
Ryuichi Namba, Tokyo (JP); Makoto Akune, Tokyo (JP); and Yoshiaki Oikawa, Tokyo (JP)
Assigned to SONY GROUP CORPORATION, Tokyo (JP)
Appl. No. 17/774,379
Filed by SONY GROUP CORPORATION, Tokyo (JP)
PCT Filed Oct. 30, 2020, PCT No. PCT/JP2020/040798
§ 371(c)(1), (2) Date May 4, 2022,
PCT Pub. No. WO2021/095563, PCT Pub. Date May 20, 2021.
Claims priority of application No. 2019-205113 (JP), filed on Nov. 13, 2019.
Prior Publication US 2022/0360930 A1, Nov. 10, 2022
Int. Cl. H04S 7/00 (2006.01); H04R 1/40 (2006.01)
CPC H04S 7/302 (2013.01) [H04R 1/40 (2013.01); H04S 2400/11 (2013.01); H04S 2400/15 (2013.01)] 11 Claims
OG exemplary drawing
 
10. A signal processing method, comprising:
in a signal processing device:
generating a sound source signal based on a recorded signal obtained by sound collection by a microphone attached to a moving object, wherein the sound source signal is generated based on a type of a sound source;
generating position correction information indicating a distance between the microphone and the sound source;
generating audio correction information based on transmission characteristics from the sound source to the microphone, wherein the audio correction information is reverse characteristics of the transmission characteristics; and
generating sound source position information based on microphone position information and the position correction information, wherein
the sound source position information indicates a position of the sound source in a target space, and
the microphone position information indicates a position of the microphone in the target space.