Title :
Adaptive algorithm for speech Compression using Cosine Packet Transform
Author :
Prakasam, P. ; Madheswaran, M.
Author_Institution :
Dept. of Electron. & Commun. Eng., Muthayammal Eng. Coll., Rasipuram
Abstract :
This paper presents a new adaptive algorithm for speech compression using cosine packet transform. The proposed algorithm uses packet decomposition, which reduces a computational complexity of a system. This paper compare the compression ratio of methods using wavelet transform, cosine transform, wavelet packet transform and proposed adaptive algorithm using cosine packet transform for different speech signal samples. The mean compression ratio is calculated for all the methods and compared. The implemented results show that the proposed compression algorithm gives the better performance for speech signals.
Keywords :
data compression; speech coding; wavelet transforms; adaptive algorithm; cosine packet transform; packet decomposition; speech compression; wavelet packet transform; Adaptive algorithm; Application software; Audio coding; Discrete cosine transforms; Discrete transforms; Discrete wavelet transforms; Internet telephony; Mathematical model; Speech; Wavelet packets; Cosine Packets; Discrete Cosine Transform; Discrete Wavelet Transform; Wavelet Packet Transform; adaptive thresholding;
Conference_Titel :
Intelligent and Advanced Systems, 2007. ICIAS 2007. International Conference on
Conference_Location :
Kuala Lumpur
Print_ISBN :
978-1-4244-1355-3
Electronic_ISBN :
978-1-4244-1356-0
DOI :
10.1109/ICIAS.2007.4658568