Referenced Items are not available for this document.
In this letter, we propose a novel approach to improve the performance of the adaptive differential pulse code modulation (ADPCM) codec by modifying the input signal under the analysis-by-synthesis framework. Modification of the input signal is performed such that the ADPCM codec causes less quantization error. When applied to the ITU-T G.726 ADPCM coder, the proposed algorithm improves the output signal-to-noise ratio up to 2.39 dB.
Published in:
Signal Processing Letters, IEEE
(Volume:13
,
Issue:
3
)
Date of Publication: March 2006
- Page(s):
- 177 - 179
- ISSN :
- 1070-9908
- INSPEC Accession Number:
- 8764362
- Digital Object Identifier :
- 10.1109/LSP.2005.862599
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 13 February 2006
- Issue Date :
- March 2006
- Sponsored by :
- IEEE Signal Processing Society
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