Waveform interpolation speech coding apparatus and method...

Details Waveform interpolation speech coding apparatus and method... Waveform interpolation speech coding apparatus and method...

2011-03-01

2011-03-01

Smits, Talivaldis Ivars (Department: 2626)

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

C704S207000, C704S219000, C704S222000, C704S265000

Reexamination Certificate

active

07899667

ABSTRACT:
A waveform interpolation speech coding apparatus and method for reducing complexity thereof are disclosed. The waveform interpolation speech coding apparatus includes: a waveform interpolation encoding unit for receiving a speech signal, calculating parameters for a waveform interpolation from the received speech signal, and quantizing the calculating parameters; and a realignment parameter calculating unit for restoring a characteristic waveform (CW) using the quantized parameter, calculating a realignment parameter that maximizes a cross-correlation among consecutive CWs for the restored CW.

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