US 12,260,872 B2
Speech processing system and speech processing method
Kota Otsuka, Tokyo (JP); Shinichi Kikuchi, Tokyo (JP); and Yasunari Sato, Tokyo (JP)
Assigned to HONDA MOTOR CO., LTD., Tokyo (JP)
Filed by HONDA MOTOR CO., LTD., Tokyo (JP)
Filed on Feb. 10, 2022, as Appl. No. 17/668,422.
Claims priority of application No. 2021-042296 (JP), filed on Mar. 16, 2021.
Prior Publication US 2022/0301576 A1, Sep. 22, 2022
Int. Cl. G10L 21/0232 (2013.01); G10L 21/0216 (2013.01); H04R 1/40 (2006.01); H04R 3/00 (2006.01)
CPC G10L 21/0232 (2013.01) [H04R 1/406 (2013.01); H04R 3/005 (2013.01); G10L 2021/02166 (2013.01); H04R 2201/401 (2013.01); H04R 2499/13 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A speech processing system comprising:
one or more analog microphones each arrangeable within a cabin and configured to output a first analog speech signal;
one or more digital microphones each arrangeable within the cabin and configured to output a digital speech signal;
a digital-to-analog convertor configured to convert the digital speech signal into a second analog speech signal; and
a speech signal processer including a delay processer, the delay processer being configured to delay at least the first analog speech signal on the basis of a delay time period, the delay processer being configured to output the delayed first analog speech signal as a third analog speech signal, wherein
the delay time period is a period when the digital-to-analog convertor converts the digital speech signal into the second analog speech signal,
the digital speech signal is a signal collected at the same time point as the first analog speech signal, and
the speech signal processer is configured to perform speech signal processing on the basis of the second analog speech signal and the third analog speech signal.