Title: Effect of noise on speech compression in Run Length Encoding scheme

Authors: Mohammad Arif; R.S. Anand

Addresses: Department of Electrical Engineering, Indian Institute of Technology Roorkee, Roorkee 247667, Uttarakhand, India. ' Department of Electrical Engineering, Indian Institute of Technology Roorkee, Roorkee 247667, Uttarakhand, India

Abstract: The paper presents results of compression using Run Length Encoding (RLE) scheme on speech signals of International Phonetic Alphabet (IPA) database. These speech signals are compressed with no noise being added then they are compressed after adding some noise to them. It observed that RLE scheme gives high Compression Ratio (CR) for noisy speech signal compared to non noisy speech signal. The performance of RLE scheme on standard speech signal as well as noisy speech signal is compared with compression by Huffman coding. The obtained results indicate that RLE scheme gives high CR compared to CR by Huffman coding.

Keywords: speech compression; IPA; International Phonetics Alphabet; noise; corrupted signals; compression ratio; hearing quality; RLE; run length encoding; compressed speech signals; Huffman coding.

DOI: 10.1504/IJSISE.2011.044550

International Journal of Signal and Imaging Systems Engineering, 2011 Vol.4 No.4, pp.248 - 256

Received: 18 Feb 2011
Accepted: 18 Jul 2011
Published online: 18 Mar 2015 *

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