Title:
音声補正装置
Document Type and Number:
Japanese Patent JP4226395
Kind Code:
B2
Abstract:
An audio correcting apparatus includes a speaker provided on a television apparatus, a microphone provided on a remote controller, an identifying unit which identifies an acoustic characteristic from the speaker to the microphone, and an acoustic characteristic setting unit having the acoustic characteristic. A signal obtained by allowing an audio signal input to the speaker to pass through the acoustic characteristic setting unit, and a signal representing ambient noise are input to an audio-correcting filter and a loudness-compensation-gain calculating unit. Based on both signals, the sound pressure level of sound output from the speaker is corrected so that the sound output from the speaker is clearly heard when reaching the user without being affected by the ambient noise.
Inventors:
Toru Marumoto
Nozomi Saito
Nozomi Saito
Application Number:
JP2003170346A
Publication Date:
February 18, 2009
Filing Date:
June 16, 2003
Export Citation:
Assignee:
Alpine Electronics Co., Ltd.
International Classes:
H04N5/60; H04R3/00; H03G5/16; H03G9/02; H03H21/00; H04R29/00
Domestic Patent References:
| JP5168087A | ||||
| JP11166835A | ||||
| JP2001142469A | ||||
| JP6310962A |
Attorney, Agent or Firm:
Masahiko Amagai
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