| 摘要 |
The present invention relates to an audio waveform reproduction apparatus for reproducing a recorded audio waveform at a reproduction tempo that can be specified as desired, and its object is to achieve that the reproduction does not deviate from the tempo when performed at a tempo that is different from the tempo at the time of recording of the audio waveform. The audio waveform reproduction apparatus includes a storage means for storing waveform data of the audio waveform, an input means for inputting reproduction tempo information, a first information production means for producing first information (TP) that is a time function based on the reproduction tempo information, a second information production means for producing second information (PP) that is a time function based on time axis compression/expansion information (TR), a compression/expansion information production means for comparing the first information and the second information and calculating the time axis compression/expansion information (TR) towards matching the temporal change of the second information with the temporal change of the first information, and a time axis compression/expansion processing means for performing time axis compression/expansion processing based on the time axis compression/expansion information (TR) to produce a reproduction audio waveform, wherein the first information (TP) and the second information (PP) represent positions on a common axis.
|
