A Theory of Loss-less Compression of High Quality Speech Signals with Comparison

Author

Kabir, Hussain Mohammed Dipu ; Alam, Syed Bahauddin ; Azam, Md Isme ; Ahmed, Rishad ; Islam, Md Riazul ; Hoque, M. Asif Ul ; Matin, Md Abdul

Author_Institution

Bangladesh Univ. of Eng. & Technol., Dhaka, Bangladesh

fYear

2010

fDate

17-19 Nov. 2010

Firstpage

136

Lastpage

141

Abstract

The field of speech compression has advanced rapidly due to cost-effective digital technology and diverse commercial applications. In voice communication a real-time system should be considered. It is not still possible to compress signals without facing any loss in real-time system. This paper presents a theory of loss-less digital compression for saving high quality speech signals. Emphasis is given on the quality of speech signal. In hearing music high quality music is always needed, consuming smaller memory space. In this compression 8-bit PCM/PCM speech signal is compressed. When values of samples are varying they are kept same. When they are not varying the number of samples containing same value is saved. After compression the signal is also an 8-bit PCM/PCM but expansion is needed before hearing it. This technique may also be used in real-time systems.

Keywords

data compression; real-time systems; speech coding; PCM/PCM speech signal; digital compression; hearing music; high quality speech signals; loss less compression theory; real-time system; speech compression; Compression; Identifier; LPC; Lossless; MPEG-4; Probability; Repetition;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer Modeling and Simulation (EMS), 2010 Fourth UKSim European Symposium on

Conference_Location

Pisa

Print_ISBN

978-1-4244-9313-5

Electronic_ISBN

978-0-7695-4308-6

Type

conf

DOI

10.1109/EMS.2010.33

Filename

5703671