| 摘要 |
<p>The present invention provides method and device for transcoding between audio coding formats with different time-frequency analysis domains, as used for example by MPEG-AAC and mp3, particularly for facilitated and faster transcoding between such audio signals. A method for transcoding a framed audio signal from a first parameter domain (PDA) into a second parameter domain (PDB) comprises linearly transforming (TT) two or more parameters of the first parameter domain (PDA) to at least one parameter of the second parameter domain (PDB), wherein the two or more parameters of the first parameter domain come from different frames of the audio signal in the first parameter domain. The linear transformation (TT) can be described as a matrix and implemented as a look-up table.</p> |
