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Proceedings Paper

Adaptive delay concealment for Internet voice applications with packet-based time-scale modification
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Paper Abstract

For Internet audio applications, much effort has been involved in packet-level error control and delay jitter concealment. In this paper, a packet-based time-scale modification scheme for speech signal is applied to provide adaptive delay concealment at the receiver of an Internet voice session. The adaptive playout algorithm strives to minimize receiver packet droppings for late-arrival packets and premature packets while keeping the end-to-end delay constrained. By stretching the voice segment up/down and incorporating the silence interval, the proposed algorithm could adapt quickly to accommodate fluctuating delays including delay spikes. The evaluation verifies the performance of the proposed adaptive playout, which improves the received speech intelligence under a tightly bounded average playout delay.

Paper Details

Date Published: 22 March 2001
PDF: 12 pages
Proc. SPIE 4209, Multimedia Systems and Applications III, (22 March 2001); doi: 10.1117/12.420809
Show Author Affiliations
Fang Liu, Univ. of Southern California (United States)
JongWon Kim, Univ. of Southern California (South Korea)
C.-C. Jay Kuo, Univ. of Southern California (United States)

Published in SPIE Proceedings Vol. 4209:
Multimedia Systems and Applications III
Andrew G. Tescher; Bhaskaran Vasudev; V. Michael Bove Jr., Editor(s)

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