Method and apparatus to automatically match keys between music being reproduced and music being performed and audio reproduction system employing the same
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United States of America Patent
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Aug 28, 2012
Grant Date -
Jul 9, 2009
app pub date -
Dec 31, 2008
filing date -
Jan 7, 2008
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Abstract
A method to automatically match keys between music being reproduced and music being performed includes detecting a key from an audio signal being reproduced from a storage medium or audio source, detecting a key from a sound signal representing music being played by a user, and performing a transposition by adjusting the key of the audio signal to match the key of the sound signal.
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