Smoothed DPCM codes

Jerry D. Gibson; Wen-Whei Chang

doi:10.1109/GLOCOM.1989.64270

Smoothed DPCM codes

Jerry D. Gibson^*, Wen-Whei Chang

^*此作品的通信作者

電機工程學系

研究成果: Paper › 同行評審

1 引文斯高帕斯（Scopus）

摘要

Minimum mean squared error (MMSE) fixed-lag smoothing is used in conjunction with DPCM (differential pulse code modulation) to develop a code generator employing delayed decoding. This smoothed DPCM (SDPCM) code generator is compared to DPCM and interpolative DPCM (IDPCM) code generators at rates 1 and 2 for tree coding several synthetic sources, as well as to a DPCM code/generator at rate 2 for speech sources. The (M, L) algorithm is used for tree searching, and SDPCM outperforms IDCPM and DPCM at rate 2 for synthetic sources with M = 1, 4, 8, and 12, and at rate 1 with M ≥ 4. For speech, SDPCM provides a slight improvement in MSE (mean squared error) over DPCM codes, which is also evident in sound spectrograms and listening tests.

原文	English
頁面	1911-1915
頁數	5
DOIs	https://doi.org/10.1109/GLOCOM.1989.64270
出版狀態	Published - 27 11月 1989
事件	IEEE Global Telecommunications Conference & Exhibition (GLOBECOM '89). Part 1 (of 3) - Dallas, TX, USA 持續時間: 27 11月 1989 → 30 11月 1989

Conference

Conference	IEEE Global Telecommunications Conference & Exhibition (GLOBECOM '89). Part 1 (of 3)
城市	Dallas, TX, USA
期間	27/11/89 → 30/11/89

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10.1109/GLOCOM.1989.64270

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Link to publication in Scopus

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title = "Smoothed DPCM codes",

abstract = "Minimum mean squared error (MMSE) fixed-lag smoothing is used in conjunction with DPCM (differential pulse code modulation) to develop a code generator employing delayed decoding. This smoothed DPCM (SDPCM) code generator is compared to DPCM and interpolative DPCM (IDPCM) code generators at rates 1 and 2 for tree coding several synthetic sources, as well as to a DPCM code/generator at rate 2 for speech sources. The (M, L) algorithm is used for tree searching, and SDPCM outperforms IDCPM and DPCM at rate 2 for synthetic sources with M = 1, 4, 8, and 12, and at rate 1 with M ≥ 4. For speech, SDPCM provides a slight improvement in MSE (mean squared error) over DPCM codes, which is also evident in sound spectrograms and listening tests.",

author = "Gibson, {Jerry D.} and Wen-Whei Chang",

year = "1989",

month = nov,

day = "27",

doi = "10.1109/GLOCOM.1989.64270",

language = "English",

pages = "1911--1915",

note = "IEEE Global Telecommunications Conference & Exhibition (GLOBECOM '89). Part 1 (of 3) ; Conference date: 27-11-1989 Through 30-11-1989",

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AU - Gibson, Jerry D.

AU - Chang, Wen-Whei

PY - 1989/11/27

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N2 - Minimum mean squared error (MMSE) fixed-lag smoothing is used in conjunction with DPCM (differential pulse code modulation) to develop a code generator employing delayed decoding. This smoothed DPCM (SDPCM) code generator is compared to DPCM and interpolative DPCM (IDPCM) code generators at rates 1 and 2 for tree coding several synthetic sources, as well as to a DPCM code/generator at rate 2 for speech sources. The (M, L) algorithm is used for tree searching, and SDPCM outperforms IDCPM and DPCM at rate 2 for synthetic sources with M = 1, 4, 8, and 12, and at rate 1 with M ≥ 4. For speech, SDPCM provides a slight improvement in MSE (mean squared error) over DPCM codes, which is also evident in sound spectrograms and listening tests.

AB - Minimum mean squared error (MMSE) fixed-lag smoothing is used in conjunction with DPCM (differential pulse code modulation) to develop a code generator employing delayed decoding. This smoothed DPCM (SDPCM) code generator is compared to DPCM and interpolative DPCM (IDPCM) code generators at rates 1 and 2 for tree coding several synthetic sources, as well as to a DPCM code/generator at rate 2 for speech sources. The (M, L) algorithm is used for tree searching, and SDPCM outperforms IDCPM and DPCM at rate 2 for synthetic sources with M = 1, 4, 8, and 12, and at rate 1 with M ≥ 4. For speech, SDPCM provides a slight improvement in MSE (mean squared error) over DPCM codes, which is also evident in sound spectrograms and listening tests.

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DO - 10.1109/GLOCOM.1989.64270

M3 - Paper

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EP - 1915

T2 - IEEE Global Telecommunications Conference & Exhibition (GLOBECOM '89). Part 1 (of 3)

Y2 - 27 November 1989 through 30 November 1989

ER -

Smoothed DPCM codes

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