A New Approach of Speech Compression byUsing DWT & DCT

International Journal of Advanced Research in Electrical, Electronics and Instrumentation Engineering

article

Hemant Amhia¹  Ratish Kumar² 

[1] Dept of EEE, Jabalpur Engineering College;Jabalpur Engineering College

关键词: DWT;    DCT;    Speech compression & decompression;    MSE;    SNR.;   

DOI  :  10.15662/ijareeie.2014.0307066

来源: Research & Reviews

【 摘 要 】

Compared to most digital data types, with the exception of digital audio, the data rates associated with uncompressed digital audio are substantial. Digital audio compression enables more efficient storage and transmission of audio data. The many forms of audio compression techniques offer a range of encoder and decoder complexity, compressed audio quality, and differing amounts of data compression. In this paper a new algorithm for speech signals compression using wavelet transform technique with Discrete Cosine Transform (DCT) technique. The performance of the implemented algorithm is evaluated based on Signal to Noise Ratio (SNR), Root Mean Square Error (MSE) and compression ratio tested on speech signals. In this paper a Wavelet & cosine hybrid model, based speech coder is implemented in software using Matlab.

【 授权许可】

Unknown