8th European Conference on Speech Communication and Technology

Geneva, Switzerland
September 1-4, 2003


A Novel Rate Selection Algorithm for Transcoding CELP-Type Codec and SMV

Dalwon Jang, Seongho Seo, Sunil Lee, Chang D. Yoo

KAIST, Korea

In this paper, we propose an efficient rate selection algorithm that can be used to transcode speech encoded by any code excited linear prediction (CELP)-type codec into a format compatible with selectable mode vocoder (SMV) via direct parameter transformation. The proposed algorithm performs rate selection using the CELP parameters. Simulation results show that while maintaining similar overall bit-rate compared to the rate selection algorithm of SMV, the proposed algorithm requires less computational load than that of SMV and does not degrade the quality of the transcoded speech.

Full Paper

Bibliographic reference.  Jang, Dalwon / Seo, Seongho / Lee, Sunil / Yoo, Chang D. (2003): "A novel rate selection algorithm for transcoding CELP-type codec and SMV", In EUROSPEECH-2003, 2865-2868.