Title :
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
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;
Conference_Titel :
Information Theory and Information Security (ICITIS), 2010 IEEE International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-6942-0
DOI :
10.1109/ICITIS.2010.5689685
