| 摘要 |
<p>Apparatus and methods for encoding frames of a speech signal are disclosed that encode inactive frames at different rates, wherein an encoded frame that corresponds to an inactive frame that occurs after a first frame includes (A) a description of a spectral envelope, over a first frequency band, of a portion of the speech signal that includes the inactive frame and (B) a description of a spectral envelope, over a second frequency band different than the first frequency band, of a portion of the speech signal that includes the inactive frame.</p> |
