Second International Conference on Spoken Language Processing (ICSLP'92)

Banff, Alberta, Canada
October 13-16, 1992

Using Phoneme Group Specific LVQ-codebooks with HMMs

Pekka Utela (1), Samuel Kaski (1), Kari Torkkola (2)

(1) Helsinki University of Technology, Laboratory of Information and Computer Science, Espoo, Finland
(2) IDIAP, Martigny, Switzerland

We have implemented a novel combination of LVQ-codebooks and hidden Markov models (HMMs) for transcribing spoken Finnish words into phonemes. A separate LVQ-codebook was trained for the unvoiced plosives /k/, /p/ and ft/. HMMs were then modified to accommodate two parallel phoneme codebooks and a third codebook representing the power of the speech signal. The error rate of phonemic transcription was as low as 9.1 %. A preliminary test with an additional /b/, /d/ and /g/ codebook was also carried out.

Full Paper

Bibliographic reference.  Utela, Pekka / Kaski, Samuel / Torkkola, Kari (1992): "Using phoneme group specific LVQ-codebooks with HMMs", In ICSLP-1992, 551-554.