Speech decoder, speech decoding method, program and storage...

Details Speech decoder, speech decoding method, program and storage... Speech decoder, speech decoding method, program and storage...

2005-04-27

2009-10-20

Smits, Talivaldis Ivars (Department: 2626)

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

C704S224000, C704S219000

Reexamination Certificate

active

07606702

ABSTRACT:
A code separation/decoding unit restores a vocal tract characteristic sp1and a vocal source signal r1. A vocal tract characteristic modification unit modifies the vocal tract characteristic sp1and outputs the modified vocal tract characteristic sp2. In this method, an emphasized vocal tract characteristic sp2is generated to output by applying formant emphasis, using amplification ratios calculated based on estimated formants, directly to the vocal tract characteristic sp1for instance. A signal synthesis unit synthesizes the modified vocal tract characteristic sp2and the vocal source signal r1to generate and output an output voice, s.

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