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User Benefits of Non-Linear Time
Compression
September 1, 2000
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Download PDF
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BibTex
Authors

Anoop Gupta

Liwei He

Li-wei He
Publication Type
TechReport
Pages
10
Number
MSR-TR-2000-96

Abstract

Related Info
Abstract
In comparison to text, audio-video content is much more challenging to browse. Timecompression has been suggested as a key technology that can support browsing – time
compression speeds-up the playback of audio-video content without causing the pitch to change.
Simple forms of time-compression are starting to appear in commercial streaming-media
products from Microsoft and Real Networks. In this paper we explore the potential benefits of
more recent and advanced types of time compression, called non-linear time compression . The
most advanced of these algorithms exploit fine-grain structure of human speech (e.g., phonemes)
to differentially speed-up segments of speech, so that the overall speed-up can be higher. In this
paper we explore what are the actual gains achieved by end-users from these advanced
algorithms, and whether the gains are worth the additional systems complexity. Our results
indicate that the gains today are actually quite small and may not be worth the additional
complexity.
Related Info
Related Files
 tr-2000-96.doc
Research Labs
 Microsoft Research Lab - Redmond
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