| 摘要 |
<p>When sound signals are reproduced at a speed different from a speed at a time of recording, the sound data are divided into unit blocks in accordance with the variable speed ratio (r) of a variable speed reproducing unit (2) of a VTR and the attributes of the sound and successively interpolated or thinned out while matching the sampling frequency fi (Hz) at the time of A/D conversion and the sampling frequency f0 (Hz) at the time of D/A conversion with each other by a sampling frequency converter (4). Thus high quality sound whose pitch is not varied is outputted while synchronizing the presented timing of the sound with the picture signals which are reproduced at a variable speed by the variable speed reproducing unit (2).</p> |
