SOUND SIGNAL PROCESSING DEVICE, METHOD OF PROCESSING SOUND SIGNAL, SOUND REPRODUCING SYSTEM, METHOD OF DESIGNING SOUND SIGNAL PROCESSING DEVICE

摘要

[Problems to be solved] At regeneration of sounds by a speaker having common vibration boards for left and right channels allows an audience to percept a broader sound field. [Means for solving the problems] An acoustic regeneration system for regenerating sounds by a speaker 20 provided with a transparent panel 24 of a liquid crystal apparatus and oscillators 26 fro vibrating the transparent panel 24 in response to signals of left and right channels is provided with a pair of input terminals 32 receptive of signals of the left and right channels, a prescribed band-pass characteristics for a plurality of prescribed bands, a pair of sound field adjustment filters 38, an operational output 32 for subtracting signals of other channels past the sound field adjustment filters 38 from the input left and right channel signals to output the result as the channel signal of a corresponding signal of the speaker 20 and a delay circuit arranged before the operational output 36.