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04_Feature representation

04_Feature representation

丁Peter
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Speech data is not random, human voices have limited forms. Vector quantization is a data compression method raw speech 10KHz/8-bit data for a 30ms frame is 300 bytes 10th order LPC =10 floating numbers=40 bytes after VQ it can be as small as one byte. Used in tele-communication systems. Enhance recognition systems since less data is involved.
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