Patent ID: 9646592
Date: 2017-05-09
CPC Classifications: G10H,G10L

Claim:
1. A method comprising: generating a dereverberated audio signal based on an original audio signal containing reverberation; and generating audio analysis data based on audio analysis of the original audio signal and audio analysis of the dereverberated audio signal, wherein the audio analysis comprises performing one of: beat period determination analysis using a beat period determination algorithm; beat time determination analysis using a beat time determination algorithm; downbeat determination analysis using a downbeat determination algorithm; structure analysis using a structure analysis algorithm; chord analysis using a chord analysis algorithm; key determination analysis using a key determination algorithm; melody analysis using a melody analysis algorithm; multi-pitch analysis using a multi-pitch analysis algorithm; automatic music transcription analysis using an automatic music transcription analysis algorithm; audio event recognition analysis using an audio event recognition analysis algorithm; and timbre analysis using a timbre analysis algorithm, in respect of at least one of the original audio signal and the dereverberated audio signal; performing beat period determination analysis, by using a beat period determination algorithm, on the dereverberated audio signal; and performing beat time determination analysis, by using a beat time determination algorithm, on the original audio signal.