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Time-Compression: Systems Concerns,
Usage, and Benefits
January 1, 1999
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Download Document

BibTex
Authors

Jonathan Grudin

Anoop Gupta

Liwei He

Nosa Omoigui

Elizabeth Sanocki

Li-wei He
Publication Type
TechReport
Pages
9
Number
MSR-TR-98-63

Abstract

Related Info
Abstract
With the proliferation of online multimedia content and the popularity of multimedia streaming
systems, it is increasingly useful to be able to quickly skim and browse multimedia. A key
technique that enables quick browsing of multimedia is time-compression . Prior research has
described how speech can be time-compressed (shortened in duration) while preserving the pitch
of the audio. However, client-server systems providing this functionality have not been available.
In this paper, we first describe the key tradeoffs faced by designers of streaming multimedia
systems deploying time-compression. The implementation tradeoffs primarily impact the
granularity of time-compression supported (discrete vs. continuous) and the latency (wait-time)
experienced by users after adjusting degree of time-compression. We report results of user
studies showing impact of these factors on the average-compression-rate achieved. We also
present data on the usage patterns and benefits of time compression. Overall, we show significant
time-savings for users and that considerable flexibility is available to the designers of clientserver streaming systems with time compression.
Related Info
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 Microsoft Research Lab - Redmond
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