Title:
DEVICE AND METHOD FOR PROCESSING SPEECH
Document Type and Number:
WIPO Patent Application WO/1998/039946
Kind Code:
A1
Abstract:
A speech processor which continuously uses the impulse response used by the preceding frame when a speech signal is included in the microphone input signal or the currently updated impulse response when no speech signal is included in the microphone input signal as the impulse response used for generating a pseudo-acoustic echo signal at the time of performing echo cancellation by using the pseudo-acoustic echo signal.
Inventors:
SHOZAKAI MAKOTO (JP)
TANI TOMOHIRO (JP)
TANI TOMOHIRO (JP)
Application Number:
PCT/JP1998/000915
Publication Date:
September 11, 1998
Filing Date:
March 05, 1998
Export Citation:
Assignee:
ASAHI CHEMICAL IND (JP)
SHOZAKAI MAKOTO (JP)
TANI TOMOHIRO (JP)
SHOZAKAI MAKOTO (JP)
TANI TOMOHIRO (JP)
International Classes:
G10L15/20; G10L21/02; H03H17/02; H04B3/23; H04M9/08; H04R3/00; H04R3/02; (IPC1-7): H04R3/02
Foreign References:
| JPS6318797A | 1988-01-26 | |||
| JPH0766757A | 1995-03-10 |
Other References:
See also references of EP 0969692A4
Attorney, Agent or Firm:
Tani, Yoshikazu (Suite 300 1-31, Akasaka 5-chom, Minato-ku Tokyo, JP)
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