Systems and methods for audio based synchronization using sound harmonics
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United States of America Patent
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May 15, 2018
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app pub date -
Mar 14, 2017
filing date -
Aug 25, 2016
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Abstract
Multiple audio files may be synchronized using harmonic sound included in audio content obtained from audio tracks. Individual audio tracks are partitioned into multiple temporal windows of a first and second temporal window length. Individual audio waveforms for individual temporal windows of the first and second window length are transformed into frequency space in which energy is represented as a function of frequency. Individual pitches and magnitudes of harmonic sound determined for individual temporal windows may be compared using a multi-resolution framework to correlate pitches and harmonic energy of multiple audio tracks to one another.
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