Please use this identifier to cite or link to this item: http://hdl.handle.net/1783.1/2584

Fast browsing of speech material for digital library and distance learning

Authors Wong, PHW
Au, OC
Issue Date 1998
Source ISCAS '98 - PROCEEDINGS OF THE 1998 INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOLS 1-6 , 1998, p. B615-B618
Summary In digital library and distance learning applications, one usually needs to search through lots of speech materials. While content-based retrieval techniques can help to identify possible matching items, the person would usually need to browse through the items quickly before making decisions on whether the items are useful or not. As a result, fast speech browsing techniques are highly desirable. In this paper; we discuss problems of fast playback of speech materials and overview some existing time scale modification (TSM) techniques. We propose some novel modifications of TSM to make it much mole effective in fast browsing of speech materials, especially those with irregular speech tempo. The proposed algorithm includes silent period removal, gain equalization and locally adaptive TSM. Simulation results show that the proposed algorithm can increase the intelligibility of the fast playbacked speech materials significantly.
Subjects
ISSN 0271-4310
ISBN 0-7803-4455-3
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Language English
Format Conference paper
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