16ビットマイクロプロセッサによる信号圧縮処理装置の製作と弦の残響応答

概要

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A signal processor for the signal compression method was developed. It uses 16 bits microprocessor 68000 as the CPU. It is very powerful for the signal compression processing. It was applied for the measurement of the impulse response and the reverberation response of acoustic systems. In this paper, responses of guitar strings for acoustic excitation are explained. Reverberation responses were calculated from impulse responses by the Schroeder's method and the FFT method, which was proposed by one of the authors before. Reverberation responses for very narrow band input signals could be obtained by FFT method. Discussions are made about the reverberation curves which do not monotonically decrease, and about effects of truncation error n computation of reverberation curves.
社団法人日本音響学会の論文
1985-11-01