Digital audio with parameters for real-time time scaling

Details Digital audio with parameters for real-time time scaling Digital audio with parameters for real-time time scaling

2007-01-30

2007-01-30

Hudspeth, David (Department: 2626)

Data processing: speech signal processing, linguistics, language

Audio signal time compression or expansion

Reexamination Certificate

active

10010514

ABSTRACT:
Preprocessing audio data to generate parameters associated with time scaling reduces the processing power required for real-time time scaling of the audio data. An augmented audio data structure includes the audio data and the parameters. The parameters for a frame of the audio data can identify best match blocks for time scaling or represent a plot of offset versus time scale that can be interpolated to determine an offset. The real-time time scaling uses the blocks that the parameters identify instead of performing a search for the best matching blocks. The parameters can also indicate which of the frames represent silence and can be scaled differently from frames that do not represent silence.

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