Qualcomm Incorporated

Sarath Manjunath

Andrew P Dejaco

Pengjun Huang

Arasanipalai K Ananthapadmanabhan

Eddie-Lun Tik Choy

A method and apparatus for predictively quantizing voiced speech includes a parameter generator and a quantizer. The parameter generator is configured to extract parameters from frames of predictive speech such as voiced speech, and to transform the extracted information to a frequency-domain representation. The quantizer is configured to subtract a weighted sum of the parameters for previous frames from the parameter for the current frame. The quantizer is configured to quantize the difference value. A prototype extractor may be added to first extract a pitch period prototype to be processed by the parameter generator.

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Bengaluru, India

Sarath Manjunath