Performance Analysis of CS-ACELP Speech Coder
Nimisha Susan Jacob1, Ancy S. Anselam2, Sakuntala S. Pillai3
1Nimisha Susan Jacob, Department of Electronics and Communication Engineering, Kerala University, Mar Baselios College of Engineering and Technology, Trivandrum (Kerala), India.
2Ancy S. Anselam, Department of Electronics and Communication Engineering, Kerala University, Mar Baselios College of Engineering and Technology, Trivandrum (Kerala), India.
3Sakuntala S. Pillai, Department of Electronics and Communication Engineering, Kerala University, Mar Baselios College of Engineering and Technology, Trivandrum (Kerala), India.
Manuscript received on 15 June 2015 | Revised Manuscript received on 25 June 2015 | Manuscript Published on 30 June 2015 | PP: 191-195 | Volume-4 Issue-5, June 2015 | Retrieval Number: E4125064515/15©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: In modern communication systems, number of users to access the wired and wireless networks has increased rapidly. Consequently, the use of channel capacity has to be increased. Speech compression aims to compress the speech signal to attain maximum channel capacity with lower bit rate and highest quality. G.729 is one of the widely used standard in ITU-T for speech compression. This paper presents the analysis of CS-ACELP coder based on the objective measurements. Also the perceptual quality of the reconstructed speech was analyzed from the spectrogram based on the parameters pitch, intensity and formants.
Keywords: Conjugate Structure Algebraic Code Excited Linear Prediction (CS-ACELP), International Telecommunications Union-Telecommunications (ITU-T), Linear Predictive Coding (LPC), Speech Coding
Scope of the Article: Music Modelling and Analysis