Aligning data streams

Details Aligning data streams Aligning data streams

2006-01-31

2006-01-31

Pendleton, Brian T. (Department: 2644)

Data processing: generic control systems or specific application

Specific application, apparatus or process

Digital audio data processing system

C348S515000

Reexamination Certificate

active

06993399

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.

REFERENCES:
patent: 5040081 (1991-08-01), McCutchen
patent: 6483538 (2002-11-01), Hu
patent: 6751360 (2004-06-01), Lu

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