US 12,302,058 B2
Signal processing apparatus and signal processing method
Yasunobu Murata, Tokyo (JP); Kohei Asada, Kanagawa (JP); and Yushi Yamabe, Tokyo (JP)
Assigned to SONY GROUP CORPORATION, Tokyo (JP)
Filed by SONY GROUP CORPORATION, Tokyo (JP)
Filed on Nov. 3, 2023, as Appl. No. 18/501,569.
Application 18/501,569 is a continuation of application No. 17/369,158, filed on Jul. 7, 2021, granted, now 11,838,717.
Application 17/369,158 is a continuation of application No. 16/440,084, filed on Jun. 13, 2019, granted, now 11,109,143, issued on Aug. 31, 2021.
Application 16/440,084 is a continuation of application No. 15/824,086, filed on Nov. 28, 2017, granted, now 10,448,142, issued on Oct. 15, 2019.
Application 15/824,086 is a continuation of application No. 14/639,307, filed on Mar. 5, 2015, granted, now 9,854,349, issued on Dec. 26, 2017.
Claims priority of application No. 2014-048426 (JP), filed on Mar. 12, 2014.
Prior Publication US 2024/0064455 A1, Feb. 22, 2024
Int. Cl. G10K 11/178 (2006.01); H04R 1/10 (2006.01)
CPC H04R 1/1083 (2013.01) [G10K 11/17821 (2018.01); G10K 11/17823 (2018.01); G10K 11/17827 (2018.01); G10K 11/1783 (2018.01); G10K 11/17854 (2018.01); G10K 11/17857 (2018.01); G10K 11/17873 (2018.01); G10K 11/17875 (2018.01); G10K 11/17885 (2018.01); H04R 1/1041 (2013.01); G10K 2210/1081 (2013.01); G10K 2210/3014 (2013.01); G10K 2210/3016 (2013.01); H04R 2430/03 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A signal processing apparatus, comprising:
a surrounding sound signal acquisition unit configured to collect a surrounding sound to generate a surrounding sound signal;
a surrounding sound level detector configured to:
divide the surrounding sound signal into a plurality of signals at a plurality of frequency bands; and
detect a level of each signal of the plurality of signals;
a noise canceling signal generation part configured to generate produce a noise canceling signal from the surrounding sound signal;
a cooped-up feeling elimination signal generation part configured to generate a cooped-up feeling elimination signal from the surrounding sound signal; and
an addition part configured to process the noise canceling signal and the cooped-up feeling elimination signal at a first ratio,
wherein the first ratio is based on the level of each signal of the plurality of signals.