Aligning data streams
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United States of America Patent
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Jan 31, 2006
Grant Date -
N/A
app pub date -
Feb 25, 2002
filing date -
Feb 24, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention aligns two wide-bandwidth, high resolution data streams, in a manner that retains the full bandwidth of the data streams, by using magnitude-only spectrograms as inputs into the cross-correlation and sampling the cross-correlation at a coarse sampling rate that is the final alignment quantization period. The invention also enables selection of stable and distinctive audio segments for cross-correlation by evaluating the energy in local audio segments and the variance in energy among nearby audio segments.
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