Speech coding for Bluetooth with CVSD algorithm

Speech coding is a procedure used to represent a digital speech signal by as minimum bits as possible, maintaining at the same time a reasonable level of speech quality. Due to increasing demand for speech communications, speech coding technology has received a lot o f researche...

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Main Authors: Khalifa, Othman Omran, Khan, Sheroz, Islam, Md. Rafiqul, Muktar, Mohd, Yaacob, Zahrein
Format: Proceeding Paper
Language:English
Published: 2004
Subjects:
Online Access:http://irep.iium.edu.my/5906/
http://irep.iium.edu.my/5906/1/01411113.pdf
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author Khalifa, Othman Omran
Khan, Sheroz
Islam, Md. Rafiqul
Muktar, Mohd
Yaacob, Zahrein
author_facet Khalifa, Othman Omran
Khan, Sheroz
Islam, Md. Rafiqul
Muktar, Mohd
Yaacob, Zahrein
author_sort Khalifa, Othman Omran
building IIUM Repository
collection Online Access
description Speech coding is a procedure used to represent a digital speech signal by as minimum bits as possible, maintaining at the same time a reasonable level of speech quality. Due to increasing demand for speech communications, speech coding technology has received a lot o f researcher's interests. Speech coding is performed using numerous steps or operations specified as an algorithm. This paper presents the Continuously Variable Slope Delta (CVSD) speech coding method which is widely used in Bluetooth applications. It is a nonlinear sampled data feedback system which accepts a band limited analog signal and encodes it into binary form for transmission through a digital channel. At the receiver, the binary signal is decoded into a close approximation of original analog signal. This coding technique is implemented in Matlab Simulink and the simulation results shown coding has good noise immunity. Further, shown in this work is the fact that damaged packets are discarded straight away without having a serious impact on the speech quality making it more suitable for two way audio communications.
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format Proceeding Paper
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institution International Islamic University Malaysia
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language English
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publishDate 2004
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spelling iium-59062019-11-20T08:00:19Z http://irep.iium.edu.my/5906/ Speech coding for Bluetooth with CVSD algorithm Khalifa, Othman Omran Khan, Sheroz Islam, Md. Rafiqul Muktar, Mohd Yaacob, Zahrein T Technology (General) Speech coding is a procedure used to represent a digital speech signal by as minimum bits as possible, maintaining at the same time a reasonable level of speech quality. Due to increasing demand for speech communications, speech coding technology has received a lot o f researcher's interests. Speech coding is performed using numerous steps or operations specified as an algorithm. This paper presents the Continuously Variable Slope Delta (CVSD) speech coding method which is widely used in Bluetooth applications. It is a nonlinear sampled data feedback system which accepts a band limited analog signal and encodes it into binary form for transmission through a digital channel. At the receiver, the binary signal is decoded into a close approximation of original analog signal. This coding technique is implemented in Matlab Simulink and the simulation results shown coding has good noise immunity. Further, shown in this work is the fact that damaged packets are discarded straight away without having a serious impact on the speech quality making it more suitable for two way audio communications. 2004 Proceeding Paper PeerReviewed application/pdf en http://irep.iium.edu.my/5906/1/01411113.pdf Khalifa, Othman Omran and Khan, Sheroz and Islam, Md. Rafiqul and Muktar, Mohd and Yaacob, Zahrein (2004) Speech coding for Bluetooth with CVSD algorithm. In: 2004 RF and Microwave Conference, 5 - 6 October 2004, Subang, Selangor. http://dx.doi.org/10.1109/RFM.2004.1411113 doi:10.1109/RFM.2004.1411113
spellingShingle T Technology (General)
Khalifa, Othman Omran
Khan, Sheroz
Islam, Md. Rafiqul
Muktar, Mohd
Yaacob, Zahrein
Speech coding for Bluetooth with CVSD algorithm
title Speech coding for Bluetooth with CVSD algorithm
title_full Speech coding for Bluetooth with CVSD algorithm
title_fullStr Speech coding for Bluetooth with CVSD algorithm
title_full_unstemmed Speech coding for Bluetooth with CVSD algorithm
title_short Speech coding for Bluetooth with CVSD algorithm
title_sort speech coding for bluetooth with cvsd algorithm
topic T Technology (General)
url http://irep.iium.edu.my/5906/
http://irep.iium.edu.my/5906/
http://irep.iium.edu.my/5906/
http://irep.iium.edu.my/5906/1/01411113.pdf