| 摘要 |
<p>This invention is aimed at providing an encoding-signal-processing method and a device thereof that are able to compress and restore an audio signal at higher efficiency. For the aim of the invention, the disclosed audio-signal-processing method is characterized by comprising the steps of: judging based on primary information whether or not an audio signal type is a music signal; if not, judging based on secondary information whether the audio signal type is a voice signal or a mixed signal; and restoring the audio signal according to a coding method applied to each frame by using coding identification information when the audio signal type is a music signal, a voice signal or a mixed signal. Only the first type information is received if the audio signal type is a music signal, and both the primary information and the secondary information are received if the audio signal type is a voice signal or a mixed signal. Therefore, various audio signals can be encoded and decoded at higher efficiency.</p> |
