Audio correcting apparatus

Electrical audio signal processing systems and devices – Monitoring of sound – Amplification control responsive to ambient sound

Reexamination Certificate

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Details

C381S094300, C381S094700

Reexamination Certificate

active

07486797

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.

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patent: 2001-142469 (2001-05-01), None

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