Low Bit Rate Speech Coding Using Differential Pulse Code Modulation

Uddin, Shahnawaz and Ansari, Iffat and Naaz, Sameena (2016) Low Bit Rate Speech Coding Using Differential Pulse Code Modulation. Advances in Research, 8 (3). pp. 1-6. ISSN 23480394

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Generally, the voice samples are very much correlated with their past/ future samples and this feature has been exploited in the present research work. Here, various voice samples have been encoded with lower number of bits as compared to the original voice samples without much deterioration in the voice quality. We have developed a code using C-programming language on UNIX platform by applying Differential Pulse Code Modulation (DPCM) algorithm (using 4, 5, & 6-bits/ sample) on the original voice samples in Pulse Code Modulation (PCM) form (i.e., 8-bits/ sample). The results, thus obtained, differ in quality depending upon the correlation between the adjacent samples of the original voice and number of bits/ sample used for encoding.

Item Type: Article
Subjects: Euro Archives > Multidisciplinary
Depositing User: Managing Editor
Date Deposited: 26 May 2023 04:25
Last Modified: 10 Jan 2024 03:40
URI: http://publish7promo.com/id/eprint/2599

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