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Compression Using Wavelet Transform

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Author(s): Aisha-Hassan A. Hashim | Othman O. Khalifa | Sering Habib Harding

Journal: Signal Processing : An International Journal
ISSN 1985-2339

Volume: 2;
Issue: 5;
Start page: 17;
Date: 2008;
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Keywords: Audio Compression | Wavelet transform

ABSTRACT
Audio compression has become one of the basic technologies of the multimedia age. The change in the telecommunication infrastructure, in recent years, from circuit switched to packet switched systems has also reflected on the way that speech and audio signals are carried in present systems. In many applications, such as the design of multimedia workstations and high quality audio transmission and storage, the goal is to achieve transparent coding of audio and speech signals at the lowest possible data rates. In other words, bandwidth cost money, therefore, the transmission and storage of information becomes costly. However, if we can use less data, both transmission and storage become cheaper. Further reduction in bit rate is an attractive proposition in applications like remote broadcast lines, studio links, satellite transmission of high quality audio and voice over internet.

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