Title:
TRANSMISSION CHARACTERISTICS CORRECTION DEVICE, TRANSMISSION CHARACTERISTICS CORRECTION METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2024/024052
Kind Code:
A1
Abstract:
This transmission characteristics correction device includes: a pseudo inverse filter generating unit that generates a pseudo inverse filter by means of a function for smoothing transmission characteristics from a speaker driver of a wearable open ear-type speaker to the ear canal entrance; and an acoustic signal correcting unit that corrects the acoustic signal on the basis of the pseudo inverse filter and sends the acoustic signal to the wearable open ear-type speaker.
Inventors:
KOZUKA SHIHORI (JP)
ITO HIROAKI (JP)
NOGUCHI KENICHI (JP)
KAKO TATSUYA (JP)
CHIBA HIRONOBU (JP)
ITO HIROAKI (JP)
NOGUCHI KENICHI (JP)
KAKO TATSUYA (JP)
CHIBA HIRONOBU (JP)
Application Number:
PCT/JP2022/029172
Publication Date:
February 01, 2024
Filing Date:
July 28, 2022
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
H04R3/04; H04R1/10; H04S7/00
Foreign References:
| US20210021250A1 | 2021-01-21 |
Other References:
SCHÄRER ZORA, LINDAU ALEXANDER: "Audio Engineering Society Convention Paper", AES 126TH CONVENTION. AUDIO ENGINEERING SOCIETY CONVENTION PAPER, MUNICH, GERMANY, 1 March 2009 (2009-03-01), Munich, Germany, pages 1 - 17, XP093133136, Retrieved from the Internet [retrieved on 20240220]
SUNDER KAUSHIK, TAN EE-LENG, GAN WOON-SENG, : "Audio Engineering Society Convention Paper", AES 137TH CONVENTION, AUDIO ENGINEERING SOCIETY CONVENTION PAPER 9149, LOS ANGELES, USA, 1 October 2014 (2014-10-01), Los Angeles, USA,, pages 1 - 11, XP093133138, Retrieved from the Internet [retrieved on 20240220]
SUNDER KAUSHIK, TAN EE-LENG, GAN WOON-SENG, : "Audio Engineering Society Convention Paper", AES 137TH CONVENTION, AUDIO ENGINEERING SOCIETY CONVENTION PAPER 9149, LOS ANGELES, USA, 1 October 2014 (2014-10-01), Los Angeles, USA,, pages 1 - 11, XP093133138, Retrieved from the Internet
Attorney, Agent or Firm:
NAKAO, Naoki et al. (JP)
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