Speech synthesis method

Details Speech synthesis method Speech synthesis method

2006-10-31

2006-10-31

Armstrong, Angela (Department: 2626)

Data processing: speech signal processing, linguistics, language

Speech signal processing

Synthesis

Reexamination Certificate

active

07130799

ABSTRACT:
A speech synthesizing method which synthesizes speech naturally is disclosed. Standardized frame power values of an n-th frame is calculated when frame power values at head and tail frames in a phoneme are standardized. An average value of the power values sampled from the power frequency characteristics in the n-th frame at a predetermined frequency interval is set as a mean frame power value. A sum of squares of signal levels in one frame of a frequency signal from a sound source is calculated as a frame power correction value. A speech envelope signal is calculated as a function having variables of the standardized frame power values, the frame power correction value and the mean frame power value. The speech envelope signal adjusts the amplitude level of a speech waveform signal supplied from a vocal tract filter according to the level of the speech envelope signal.

REFERENCES:
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patent: 0 427 485 (1991-05-01), None
patent: 0427485 (1991-05-01), None
patent: WO 96/27870 (1996-09-01), None
patent: WO 98/35340 (1998-08-01), None

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