Audio processing apparatus, reproduction apparatus, audio processing method and program
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United States of America Patent
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Nov 15, 2016
Grant Date -
Nov 20, 2014
app pub date -
Sep 16, 2011
filing date -
Sep 16, 2011
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Abstract
The disclosed apparatus extracts particular instrument sounds included in music in real time during music reproduction. The audio processing section 12 has an attack decision section 42 that decides attack positions of the bass drum sounds in audio signals, a bass drum sounds decision section 43 that decides sound periods of the bass drum in the audio signals, and a bass drum sounds extraction section 44 that extracts bass drum sounds using a time varying type filter for the attack positions and an adaptive type filter for the sound periods.
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