Title :
Pattern search prediction of speech
Author :
Bogner, Robert E. ; Li, Tzuyin
Abstract :
The pattern search predictor (PSP) predicts samples of a signal by inspecting the past for patterns of (about ten) samples that match the most recent set. The sample subsequent to the found pattern is used to make the required estimate. PSP has been tested in a codec algorithm based on the CCITT 32-kb adaptive differential pulse-code modulation standard, using its adaptive quantizer. Study of spectrograms has shown that the error is substantially white, as expected, and that perturbations of the signal spectrograms are substantially undetectable. PSP has some promise for filling in lost data
Keywords :
codecs; encoding; pulse-code modulation; speech analysis and processing; ADPCM; adaptive differential pulse-code modulation standard; adaptive quantizer; codec algorithm; pattern search prediction; signal spectrograms; Australia; Code standards; Codecs; Pattern matching; Predictive models; Signal processing; Spectrogram; Speech; Technological innovation; Testing;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1989. ICASSP-89., 1989 International Conference on
Conference_Location :
Glasgow
DOI :
10.1109/ICASSP.1989.266393
