A loss-less compression technique for high quality speech signals and its implementation with MPEG-4 ALS for better compression

Author

Kabir, Hussain Mohammed Dipu ; Alam, Syed Bahauddin ; Matin, Md Abdul ; Chowdhury, Imranul Kabir

Author_Institution

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

fYear

2010

fDate

17-19 Dec. 2010

Firstpage

781

Lastpage

785

Abstract

This paper presents a theory of loss-less digital compression. Quality of voice signal is not important for voice communication. In hearing music high quality music is always recommended. For this emphasis is given on the quality of speech signal. To save more music it is needed to save them consuming smaller memory space. In proposed 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. MPEG-4 ALS is applied in this compressed PCM signal for better compression.

Keywords

audio coding; linear predictive coding; pulse code modulation; 8-bit PCM/PCM speech signal; MPEG-4 ALS; digital compression; high quality speech signals; loss-less compression technique; Algorithm design and analysis; Compression algorithms; Phase change materials; Speech; Speech coding; Transform coding; Identifier; Loss-less; MPEG-4 ALS; Probability; Repetition;

fLanguage

English

Publisher

ieee

Conference_Titel

Information Theory and Information Security (ICITIS), 2010 IEEE International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4244-6942-0

Type

conf

DOI

10.1109/ICITIS.2010.5689685

Filename

5689685