A new structural preprocessor for low-bit rate speech coding

Joon-Hyuk Chang, Jong Won Shin, Seung Yeol Lee, Nam Soo Kim

Research output: Contribution to conferencePaper

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.

Original languageEnglish
Pages2729-2732
Number of pages4
StatePublished - 2005 Dec 1
Event9th European Conference on Speech Communication and Technology - Lisbon, Portugal
Duration: 2005 Sep 42005 Sep 8

Other

Other9th European Conference on Speech Communication and Technology
CountryPortugal
CityLisbon
Period05/09/405/09/8

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Speech coding
Identification (control systems)

Cite this

Chang, J-H., Shin, J. W., Lee, S. Y., & Kim, N. S. (2005). A new structural preprocessor for low-bit rate speech coding. 2729-2732. Paper presented at 9th European Conference on Speech Communication and Technology, Lisbon, Portugal.
Chang, Joon-Hyuk ; Shin, Jong Won ; Lee, Seung Yeol ; Kim, Nam Soo. / A new structural preprocessor for low-bit rate speech coding. Paper presented at 9th European Conference on Speech Communication and Technology, Lisbon, Portugal.4 p.
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Chang, J-H, Shin, JW, Lee, SY & Kim, NS 2005, 'A new structural preprocessor for low-bit rate speech coding' Paper presented at 9th European Conference on Speech Communication and Technology, Lisbon, Portugal, 05/09/4 - 05/09/8, pp. 2729-2732.

A new structural preprocessor for low-bit rate speech coding. / Chang, Joon-Hyuk; Shin, Jong Won; Lee, Seung Yeol; Kim, Nam Soo.

2005. 2729-2732 Paper presented at 9th European Conference on Speech Communication and Technology, Lisbon, Portugal.

Research output: Contribution to conferencePaper

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Chang J-H, Shin JW, Lee SY, Kim NS. A new structural preprocessor for low-bit rate speech coding. 2005. Paper presented at 9th European Conference on Speech Communication and Technology, Lisbon, Portugal.