Patent ID: 8023662

Claim:
A sound reproducing system comprising: a speaker system constructed by a plurality of speakers disposed in a sound field space; a reverberation adjusting apparatus for recognizing a reverberation characteristic in the sound field space by amplifying a sound source by the speaker system and, on the basis of the recognized reverberation characteristic, adjusting a reverberation component in the sound source which is output from the speaker system; and a microphone array which is constructed by a plurality of microphones respectively disposed on a surface parallel with a floor surface of the sound field space and having the same characteristics, in which distances among the microphones are preliminarily determined and, when the sound source is amplified and the amplified sound is output from the speaker system to the sound field space, for collecting the amplified sound in a specific listening position in the sound field space, wherein the reverberation adjusting apparatus comprises: a first obtaining device which obtains a sound signal as the sound source; a generating device which generates, as the sound source, a test signal used for analyzing a reverberation characteristic of the sound field space; an output control device which amplifies at least one of the sound signal and the test signal and outputting the amplified signal from the speaker system; a second obtaining device which obtains, as an amplified sound signal, an amplified sound collected by the microphone array; a recognizing device which recognizes a reverberation characteristic having a direction characteristic indicative of an arrival direction of a reverberation component of amplified sound in the listening position on the basis of the obtained amplified sound signal, and indicative of attenuation with time in the sound field space on intensity of sound in the listening position of the amplified sound; and an adjusting device which adjusts the reverberation characteristic of the sound source to be amplified and output from the obtained speaker on the basis of the recognized reverberation characteristic.