US 12,096,194 B2
Processing device, processing method, filter generation method, reproducing method, and computer readable medium
Yumi Fujii, Yokohama (JP); Toshiaki Nagai, Yokohama (JP); and Hisako Murata, Yokohama (JP)
Assigned to JVCKENWOOD CORPORATION, Yokohama (JP)
Filed by JVCKENWOOD Corporation, Yokohama (JP)
Filed on Jun. 6, 2022, as Appl. No. 17/833,516.
Application 17/833,516 is a continuation of application No. PCT/JP2020/041272, filed on Nov. 5, 2020.
Claims priority of application No. 2019-232007 (JP), filed on Dec. 23, 2019.
Prior Publication US 2022/0303690 A1, Sep. 22, 2022
Int. Cl. H04R 5/04 (2006.01); G10K 15/00 (2006.01); H04R 5/033 (2006.01); H04R 29/00 (2006.01); H04S 7/00 (2006.01)
CPC H04R 5/04 (2013.01) [H04R 5/033 (2013.01); H04R 29/002 (2013.01); H04R 29/005 (2013.01); H04R 2400/01 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A processing device comprising:
a measurement signal output unit configured to output a frequency sweep signal whose frequency is swept, which is a measurement signal, to each of right and left output units of headphones or earphones;
a sound pickup signal acquisition unit configured to acquire, by a left microphone worn on a left ear of a listener, an L-ch sound pickup signal obtained by picking up the measurement signal and acquire, by a right microphone worn on the right ear of the listener, an R-ch sound pickup signal obtained by picking up the measurement signal;
an evaluation signal acquisition unit configured to acquire an evaluation signal in a time domain in accordance with the L-ch and R-ch sound pickup signals;
an extraction unit configured to extract a partial section of the evaluation signal as an extraction section;
a comparison unit configured to compare the L-ch sound pickup signal with the R-ch sound pickup signal by making rising times of the evaluation signals coincide with each other using the evaluation signal in the extraction section; and
a determination unit configured to determine whether fit of the right and left microphones or the output unit is good or not based on results of the comparison made in the comparison unit.