| 摘要 |
<p>An encoding method and a decoding method for digital voice data, capable of changing reproducing speeds in response to various digital contents and without sacrifice in voice clearness. The encoding method comprises the steps of generating, for each of preset discrete frequencies, a paired digitized sine wave component and cosine wave component, and, by using the sine wave and cosine wave components, extracting the amplitude information of the sine wave components and the amplitude information of the cosine wave components from digital voice data sampled at a preset sampling cycle, frame data composed of pairs of sine wave component amplitude information and cosine wave component amplitude information extracted in response to respective discrete frequencies being then sequentially generated as part of encoded voice data.</p> |
