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

Authors:
Fang Liu;JongWon Kim;C.-C. J. Kuo
Affiliations:
Integrated Media Syst. Center, Univ. of Southern California, Los Angeles, CA, USA;-;-
Venue:
ICASSP '01 Proceedings of the Acoustics, Speech, and Signal Processing, 2001. on IEEE International Conference - Volume 03
Year:
2001

Citing 0
Cited 6

Loss concealment for multi-channel streaming audio

NOSSDAV '03 Proceedings of the 13th international workshop on Network and operating systems support for digital audio and video
Adaptive time scale modification of speech for graceful degrading voice quality in congested networks for VoIP applications

Signal Processing
An agent-based approach to intrastream synchronization for multimedia applications

International Journal of Knowledge-based and Intelligent Engineering Systems
An adaptive media playout for intra-media synchronization of networked-video applications

Journal of Visual Communication and Image Representation
A New Buffer Algorithm for Speech Quality Improvement in VoIP Systems

Wireless Personal Communications: An International Journal
A moving average predictor for playout delay control in VoIP

IWQoS'03 Proceedings of the 11th international conference on Quality of service

Quantified Score

Hi-index	0.00

Visualization

Abstract

Much effort has been involved in packet-level error control and delay jitter concealment for Internet audio applications. A packet-based time-scale modification scheme for speech signals is developed to provide adaptive delay concealment, at the receiver for an Internet voice session in this work. The adaptive playout algorithm strives to minimize packet droppings for late-arrival packets and premature packets while maintaining the end-to-end delay constraint. By stretching the length of voice segments and incorporating silence intervals, the proposed algorithm is able to accommodate fluctuating delays including delay spikes quickly. It is verified by experiments that the proposed adaptive playout algorithm improves the received speech intelligence under a tightly bounded average playout delay.