Data processing: speech signal processing – linguistics – language – Speech signal processing – Synthesis
Patent
1995-02-28
1999-07-06
Dorvil, Richemond
Data processing: speech signal processing, linguistics, language
Speech signal processing
Synthesis
704503, G10L 302
Patent
active
059208406
ABSTRACT:
A method and apparatus for time-scale modification of speech using a modified version of the Waveform Similarity based Overlap-Add technique (WSOLA) comprises the steps of storing a portion of an input speech signal in a memory, analyzing the portion of the input speech signal to determined at least one filtered pitch value, calculating an estimated pitch value (12) from the at least one filtered pitch value, determining a segment size (14) in response to the estimated pitch value (12), the segment size (14) having a value greater than the estimated pitch value (12), and time-scale compressing (18) the input speech signal in response to the segment size determined.
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ICASSP-93. 1993 IEEE International Coference an Acoustics, Speech, and Signal processing; Verhelst et al, "An Overlap-add technique based on waveform similarity (WSOLA) for high quality time-scale modification of speech", pp. 554-557 vol. 2, Apr. 1993.
Kuznicki William Joseph
Leitch Clifford Dana
Satyamurti Sunil
Schwendeman Robert John
Siwiak Kazimierz
Dorvil Richemond
Macnak Philip P.
Meles Pablo
Motorola Inc.
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