Methods, systems and computer program products for detecting musical notes in an audio signal
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United States of America Patent
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Aug 30, 2011
Grant Date -
Jan 7, 2010
app pub date -
Sep 10, 2009
filing date -
Oct 29, 2004
priority date (Note) -
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Abstract
Methods, system and/or computer program products for detection of a note include receiving an audio signal and generating a plurality of frequency domain representations of the audio signal over time. A time domain representation is generated from the plurality of frequency domain representations. A plurality of edges are detected in the time domain representation and the note is detected by selecting one of the plurality of edges as corresponding to the note based on characteristics of the time domain representation.
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