Result Details
Advances in very low bit-rate speech coding using recognition and synthesis techniques
Capman Francois
Černocký Jan, prof. Dr. Ing.
El Chami Fadi
Charbit Maurice
Chollet Gerard, Dr.
Petrovska-Delacretaz Dijana, Dr.
Many current systems for automatic speech processing rely on sub-word units defined using phonetic knowledge. Our paper presents an alternative to this approach -- determination of speech units using {ALISP} (Automatic Language Independent Speech Processing) techniques. Such units were experimentally tested in a very low bit rate phonetic vocoder, where mean bit rates of hundreds bps for unit encoding were achieved. Improvements of the proposed coder and some links to ``classical'' approaches of speech synthesis are discussed. Based on the results of comparison of an ALISP segmentation with a phonetic alignment, we comment on the potential use of automatically derived units in speech recognition, speaker verification and language identification.
speech coding, very low bit-rate, data-driven units, ALISP
@article{BUT41073,
author="Genevieve {Baudoin} and Francois {Capman} and Jan {Černocký} and Fadi {El Chami} and Maurice {Charbit} and Gerard {Chollet} and Dijana {Petrovska-Delacretaz}",
title="Advances in very low bit-rate speech coding using recognition and synthesis techniques",
journal="Lecture Notes in Computer Science",
year="2002",
volume="2002",
number="2448",
pages="269--276",
issn="0302-9743",
url="http://www.fit.vutbr.cz/~cernocky/publi/2002/tsd2002_sympa.pdf"
}