Transmitter with an improved harmonic speech encoder

Details Transmitter with an improved harmonic speech encoder Transmitter with an improved harmonic speech encoder

1998-07-13

2000-06-20

Hudspeth, David R.

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

704219, 704220, G10L 1900, G10L 1908

Patent

active

060788798

ABSTRACT:
In a harmonic speech encoder (16) a speech signal to be encoded is represented by a plurality of LPC parameters which are determined by a LPC parameter computer (30), a pitch value and a gain value. The speech encoder comprises a (coarse) pitch estimator (38) for determining a coarse pitch, and a refined pitch computer (32) to determine a refined pitch from the coarse pitch value. The refined pitch value is determined in an analysis by synthesis way, in which a refined pitch value is selected which results in a minimum error measure between a representation of a synthesized speech signal and a representation of the original speech signal.

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patent: 5890108 (1999-03-01), Yelender

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