An adaptive silence deletion algorithm for compression of telephone speech

TitleAn adaptive silence deletion algorithm for compression of telephone speech
Publication TypeConference Paper
Year of Publication1997
AuthorsLoo, C., and R. W. Donaldson
Conference NameCommunications, Computers and Signal Processing, 1997. '10 Years PACRim 1987-1997 - Networking the Pacific Rim'. 1997 IEEE Pacific Rim Conference on
Pagination701 -705 vol.2
Date Publishedaug.
Keywords200 to 3400 Hz, adaptive signal processing, adaptive silence deletion algorithm, bandwidth, continuous speech, data compression, noise, noisy speech, performance, playback quality, public telephone network, speech coding, speech intelligibility, speech processing, speech quality, speech storage, speech transmission, telephone circuits, telephone networks, telephone speech compression, waveform compression techniques

The ever-increasing volume of speech generated for transmission and storage motivates a continuing search for an improved cost-effective means to effectively compress speech. Earlier work by various researchers has resulted in various compression algorithms. Of particular interest to us are those waveform compression techniques utilizing the principle of silence deletion developed by Gan (1988) and by Rose (1991) which was implemented on good quality speech signals. We further modify, optimize and evaluate these waveform compression algorithms, and test their viability and performance on noisy speech from actual telephone circuits. The results show that up to 50% compression of continuous speech is achievable at an acceptable level of playback quality


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