| 摘要 |
A method and an apparatus for processing an audio signal are provided to reinforce the loss of a signal of low band by generating harmonic frequency. A method and an apparatus for processing an audio signal are comprised of the steps: a plurality of low frequency band signals is filtered from an audio signal based on a cut off frequency; the harmonic signal of a plurality of low frequency band signals is produced from a plurality of low frequency band signals; The harmonic signal within baseband is filtered from a plurality of harmonic signals; and the harmonic signals within the filtered baseband are added up and the audio signal is restored. |
