대한음성학회:학술대회논문집 (Proceedings of the KSPS conference)
- 대한음성학회 1996년도 10월 학술대회지
- /
- Pages.448-455
- /
- 1996
Vector Quantization using Speech Signal Property
- Ha, Seok-Won (Dept. of Electronics Engineering, Sung Kyun Kwan University) ;
- Yoon, Seok-Hyun (Dept. of Operation-Mechatronics, Korea Railroad College) ;
- Chung, Kwang-Woo (Dept. of Operation-Mechatronics, Korea Railroad College) ;
-
Hong, Kwang-Seok
(Dept. of Electronics Engineering, Sung Kyun Kwan University)
- 발행 : 1996.10.01
초록
In this paper, we have proposed a VQ algorithm which uses a generating order to make quantize feature vector of speech signal. The proposed algorithm inspects what codeword follows a(ter present codeword and adds new index to established codebook, when mapping speech signal. We present a variable bit rate for new codebook, and propose an efficient compressed way of information. In this way, the number of computation and the number of codewords to be searched are reduced considerably. The performance of the proposed VQ algorithm is evaluated by spectrum distortion measure and bit rate. The obtained spectrum distortion is reduced about 0.22 [db], and the bit rate is saved over 0.21 bit/frame.
키워드