DocumentCode
1406179
Title
Subjective effects of cell losses in voice over ATM
Author
Petr, D.W. ; Wei Gary Huang ; Mischler, M.P.
Author_Institution
Inf. & Telecommun. Technol. Center, Kansas Univ., Lawrence, KS, USA
Volume
2
Issue
7
fYear
1998
fDate
7/1/1998 12:00:00 AM
Firstpage
186
Lastpage
188
Abstract
We present the results of formal subjective listening tests of voice transported via asynchronous transfer mode (ATM), with emphasis on cell losses. The μ-law voice samples are divided into pairs of ATM cells, one containing most significant bits (MSB) cells and the other containing least significant bits (LSB) cells. Based on isopreference testing, we conclude that: (1) isolated blocks of 15 or fewer consecutive LSB cell losses (176 ms or less) are indistinguishable from the original speech and (2) LSB cell loss rates up to at least 10% (10/sup -1/) are indistinguishable from the original speech.
Keywords
asynchronous transfer mode; voice communication; /spl mu/-law voice samples; 64 kbit/s; ATM; asynchronous transfer mode; cell losses; formal subjective listening tests; isopreference testing; least significant bits cells; most significant bits cells; packet voice; Asynchronous transfer mode; Filling; Materials testing; Payloads; Phase change materials; Protocols; Quality assessment; Robustness; Sampling methods; Speech;
fLanguage
English
Journal_Title
Communications Letters, IEEE
Publisher
ieee
ISSN
1089-7798
Type
jour
DOI
10.1109/4234.703907
Filename
703907
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