A new structural approach in system identification with generalized analysis-by-synthesis for robust speech coding

Title
A new structural approach in system identification with generalized analysis-by-synthesis for robust speech coding
Authors
Chang, J.H.; Kim, N.S.
Keywords
generalized analysis-by-synthesis, low-bit-rate speech coding
Issue Date
2006-05
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Abstract
In this paper, we apply a new structural approach to generalized analysis-by-synthesis (GAbS) for system identification as a preprocessor of a low-bit-rate speech coder. In our approach, the coder-decoder (CODEC) system is separately estimated and then applied to modify the current input signal. This is different from that originally proposed where the CODEC system is sequentially estimated and then applied to the next input signal. The proposed estimation scheme is compared to the conventional method in terms of the signal modification approach under the various noise data and in several SNR conditions, and shows better performance.
URI
http://dspace.inha.ac.kr/handle/10505/1850
ISSN
1558-7916
Appears in Collections:
College of Engineering(공과대학) > Electronic Engineering (전자공학) > Journal Papers, Reports(전자공학 논문, 보고서)
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