대한전자공학회:학술대회논문집 (Proceedings of the IEEK Conference)
- 대한전자공학회 2007년도 하계종합학술대회 논문집
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- Pages.423-424
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- 2007
분산음성인식 환경에서 서버에서의 스케일러블 고품질 음성복원
Scalable High-quality Speech Reconstruction in Distributed Speech Recognition Environments
- Yoon, Jae-Sam (Department of Information and Communications Gwangju Institute of Science and Technology) ;
- Kim, Hong-Kook (Department of Information and Communications Gwangju Institute of Science and Technology) ;
- Kang, Byung-Ok (Electronics and Telecommunications Research Institute)
- 발행 : 2007.07.11
초록
In this paper, we propose a scalable high-quality speech reconstruction method for distributed speech recognition (DSR). It is difficult to reconstruct speech of high quality with MFCCs at the DSR server. Depending on the bit-rate available by the DSR system, we can send additional information associated with speech coding to the DSR sorrel, where the bit-rate is variable from 4.8 kbit/s to 11.4 kbit/s. The experimental results show that the speech quality reproduced by the proposed method when the bit-rate is 11.4 kbit/s is comparable with that of ITU-T G.729 under both ideal channel and frame error channel conditions while the performance of DSR is maintained to that of wireline speech recognition.
키워드