5th European Conference on Speech Communication and Technology

Rhodes, Greece
September 22-25, 1997

Phonetic Vocoding with Speaker Adaptation

Carlos M. Ribeiro, Isabel Trancoso


This paper describes a phonetic vocoding scheme which relies on speaker adaptation to capture important speaker characteristics. These are typically lost in phonetic vocoders which transmit only information about the phones which are recognized, together with some prosodic information. In our scheme, however, additional speaker characteristics are transmitted in vowel regions (average values of LSP coefficients for each phone). This additional information yielded potentially good speaker recognizability results, in informal listening tests, while still achieving a rather low average bit rate, suitable for many transmission and storage applications. This work extends our previous phonetic vocoding scheme described in [5]. The vocoder is now fully quantized and the number of transmitted parameters had been significantly reduced.

Full Paper

Bibliographic reference.  Ribeiro, Carlos M. / Trancoso, Isabel (1997): "Phonetic vocoding with speaker adaptation", In EUROSPEECH-1997, 1291-1294.