A new structural preprocessor for low-bit rate speech coding

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

A new structural preprocessor for low-bit rate speech coding

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

School of Electronics Engineering

Research output: Contribution to conference › Paper › peer-review

2 Scopus citations

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 language	English
Pages	2729-2732
Number of pages	4
State	Published - 2005
Event	9th European Conference on Speech Communication and Technology - Lisbon, Portugal Duration: 4 Sep 2005 → 8 Sep 2005

Conference

Conference	9th European Conference on Speech Communication and Technology
Country/Territory	Portugal
City	Lisbon
Period	4/09/05 → 8/09/05

Cite this

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title = "A new structural preprocessor for low-bit rate speech coding",

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.",

author = "Chang, {Joon Hyuk} and Shin, {Jong Won} and Lee, {Seung Yeol} and Kim, {Nam Soo}",

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note = "9th European Conference on Speech Communication and Technology ; Conference date: 04-09-2005 Through 08-09-2005",

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AU - Chang, Joon Hyuk

AU - Shin, Jong Won

AU - Lee, Seung Yeol

AU - Kim, Nam Soo

PY - 2005

Y1 - 2005

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=33745194563&partnerID=8YFLogxK

M3 - Paper

AN - SCOPUS:33745194563

SP - 2729

EP - 2732

T2 - 9th European Conference on Speech Communication and Technology

Y2 - 4 September 2005 through 8 September 2005

ER -

A new structural preprocessor for low-bit rate speech coding

Abstract

Conference

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