Data processing: speech signal processing – linguistics – language – Speech signal processing – For storage or transmission
Patent
1995-12-22
1998-10-13
Hudspeth, David R.
Data processing: speech signal processing, linguistics, language
Speech signal processing
For storage or transmission
704262, 341 75, 382249, G10L 914, H03M 750
Patent
active
058227210
ABSTRACT:
A method for encoding and decoding digital signals, particularly speech signals, by separating the original signal into a linear and nonlinear portions, the nonlinear portion may have linear aspects. The linear portion is encoded by LPC techniques and the nonlinear portion is encoded by use of a fractal transform. The encoded signal consists of LPC filter coefficients and fractal transform coefficients. The encoded signal is decoded by separating the LPC coefficients and fractal coefficients, using the LPC coefficients to generate an LPC filter, decoding the fractal coefficients using a fractal transform decoding method to obtain an error signal, and exciting the LPC filter with the decoded error signal to obtain decoded digital signals.
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Hudspeth David R.
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Smits Talivaldis Ivars
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