Characterizing the subjective performance of the ITU-T 8 kb/s speech coding algorithm-ITU-T G.729

Three listening-only experiments were conducted to characterize the subjective performance (i.e., speech quality) of 8 kb/s G.729. These experiments evaluated the quality of coded speech under a variety of conditions: (i) interworking with other international and regional speech coding standards; (i...

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Bibliographic Details
Published in:IEEE communications magazine 1997-09, Vol.35 (9), p.74-81
Main Authors: Perkins, M.E., Evans, K., Pascal, D., Thorpe, L.A.
Format: Magazinearticle
Language:English
Subjects:
Background noise
Circuit testing
Code standards
Degradation
Laboratories
Speech codecs
Speech coding
Telecommunications
Wireless communication
Working environment noise
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Summary:Three listening-only experiments were conducted to characterize the subjective performance (i.e., speech quality) of 8 kb/s G.729. These experiments evaluated the quality of coded speech under a variety of conditions: (i) interworking with other international and regional speech coding standards; (ii) input speech that had been corrupted by environmental noise; (iii) operation over degraded transmission channels (including random bit errors and a simulated radio channel). The results of these experiments indicate that 8 kb/s G.729 meets the performance requirements that were established at the beginning of the standardization process.
ISSN:0163-6804
1558-1896
DOI:10.1109/35.620528