US 12,094,475 B2
Signal processing device and signal processing method, and program
Yasuhiro Toguri, Kanagawa (JP); and Yoshiaki Oikawa, Kanagawa (JP)
Assigned to Sony Group Corporation, Tokyo (JP)
Appl. No. 17/626,771
Filed by Sony Group Corporation, Tokyo (JP)
PCT Filed Jul. 3, 2020, PCT No. PCT/JP2020/026170
§ 371(c)(1), (2) Date Jan. 12, 2022,
PCT Pub. No. WO2021/014933, PCT Pub. Date Jan. 28, 2021.
Claims priority of application No. 2019-133695 (JP), filed on Jul. 19, 2019.
Prior Publication US 2022/0262374 A1, Aug. 18, 2022
Int. Cl. G10L 19/02 (2013.01); G10L 19/008 (2013.01); H04R 5/04 (2006.01); H04S 7/00 (2006.01)
CPC G10L 19/02 (2013.01) [G10L 19/008 (2013.01); H04R 5/04 (2013.01); H04S 7/307 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A signal processing device comprising:
a demultiplexing section that demultiplexes encoded data to extract encoded audio signals and overamplitude flags having been generated for a plurality of respective panel loudspeakers and each indicating whether overamplitude will occur in the corresponding panel loudspeaker;
a decoding section that decodes the encoded audio signals; and
an adjustment section that adjusts audio signals to be supplied to the plurality of the respective panel loudspeakers on a basis of the overamplitude flags and audio signals resulting from the decoding.
 
15. A signal processing device comprising:
an overamplitude detection section that detects whether, when each of a plurality of respective panel loudspeakers reproduces a sound based on an audio signal, overamplitude will occur in the corresponding panel loudspeaker, and generates overamplitude flags indicating the detection results;
an encoding section that encodes the audio signals; and
a multiplexing section that generates encoded data by multiplexing the overamplitude flags for the plurality of the respective panel loudspeakers and encoded audio signals resulting from the encoding.
 
19. A signal processing method that is performed by a signal processing device, the method comprising:
detecting whether, when each of a plurality of panel loudspeakers reproduces a sound based on an audio signal, overamplitude will occur in the panel loudspeaker, and generating overamplitude flags indicating the detection results;
encoding the audio signals; and
generating encoded data by multiplexing the overamplitude flags for the plurality of the respective panel loudspeakers and encoded audio signals resulting from the encoding.