SOUND SIGNAL PROCESSING APPARATUS, IMAGING APPARATUS, SOUND SIGNAL PROCESSING METHOD, PROGRAM, AND RECORDING MEDIUM

摘要

PROBLEM TO BE SOLVED: To reduce buffer memory length required for estimating an interpolation signal from signals neighboring a sound section and to reduce delay of an output sound corresponding to an input sound in association with interpolation processing.

SOLUTION: A sound signal processing apparatus includes: a first buffer memory that temporarily stores an input sound signal for every prescribed section; a second buffer memory that temporarily stores a sound signal in an (n-1)th section immediately preceding a sound signal in an n-th section which is stored in the first buffer memory; an interpolation signal generation unit which, on detecting that noise is included in the sound signal in the n-th section, generates an interpolation signal from at least the sound signal in the (n-1)th section which is stored in the second buffer memory; and a signal interpolation unit which uses the interpolation signal to interpolate the sound signal in the n-th section which includes the noise.

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