Patent ID: 6675141
Filing Date: 2004-01-06
Classification: G10L,G11B

Abstract:
An apparatus for converting an acoustic-signal reproducing speed, comprising:recording means for recording and holding acoustic signals; decimation means for performing a decimation process on the acoustic signals recorded in the recording means; first accumulating means for accumulating acoustic signals down-sampled by the decimation means; pitch-calculating means for calculating a pitch cycle of the acoustic signals accumulated in the first accumulating means; second accumulating means for accumulating the acoustic signals recorded in the recording means; operation means for calculating a waveform similar to a waveform of the pitch cycle calculated by the pitch-calculating means; third accumulating means for accumulating data representing the similar waveform calculated by the operation means; and control means for controlling reading of data into the second accumulating means, the calculation performed in the operation means, and transfer of data to the third accumulating means.