| 摘要 |
PURPOSE:To provide an audio signal analyzing device in which a high speed signal analysis is performed without depending on frequency. CONSTITUTION:Input audio signals are digitized by an A/D converter 3 employing the oscillation output of a synchronizing circuit 2 which is synchronized to the input audio signals and oscillates with the frequency, that is element number multiple of an FFT analysis, as a sample clock. The FFT analysis is performed relative to the input audio data obtained by the converter 3 by a digital signal processing section 4. |
