Patent ID: 7536303
Filing Date: 2009-05-19
Classification: G10L

Abstract:
1. An audio restoration apparatus which restores an audio to be restored, the audio to be restored having a missing audio part and being included in a mixed audio, and said audio restoration apparatus comprising: a mixed audio separation unit operable to extract the audio to be restored included in the mixed audio; an audio structure analysis unit operable to generate at least one of a phoneme sequence, a character sequence and a musical note sequence of the missing audio part in the extracted audio to be restored, based on an audio structure knowledge database in which semantics of audio are registered; an unchanged audio characteristic domain analysis unit operable to segment the extracted audio to be restored into time domains in each of which an audio characteristic remains unchanged; an audio characteristic extraction unit operable to identify a time domain where the missing audio part is located, from among the segmented time domains, and extract audio characteristics of the identified time domain in the audio to be restored; and an audio restoration unit operable to restore the missing audio part in the audio to be restored, using the extracted audio characteristics and the generated one or more of phoneme sequence, character sequence and musical note sequence.