DocumentCode
3033651
Title
Perceptual and objective evaluation of speech processed by adaptive differential PCM
Author
McDermott, Barbara J. ; Scagliola, Carlo ; Goodman, David J.
Author_Institution
Bell Telephone Laboratories, Murray Hill, NJ
Volume
3
fYear
1978
fDate
28581
Firstpage
581
Lastpage
585
Abstract
An experiment has been performed to study the perceptual characteristics of speech processed by ADPCM. We created 18 three-bit and four-bit coders spanning a wide range of quantizer adaptation parameters. Subjects judged the difference between each pair of coders and rated the quality of each coder individually. The difference data reveal three important perceptual dimensions (overall clarity, signal vs. background distortion, muffled vs. hoarse) which are related to various objective measures of coder performance. Overall subjective quality is well predicted by segmental SNR and even better by a linear combination of measures of granular distortion and overload distortion.
Keywords
Acoustic noise; Degradation; Distortion measurement; Laboratories; Phase change materials; Pulse modulation; Speech analysis; Speech coding; Speech processing; Telephony;
fLanguage
English
Publisher
ieee
Conference_Titel
Acoustics, Speech, and Signal Processing, IEEE International Conference on ICASSP '78.
Type
conf
DOI
10.1109/ICASSP.1978.1170566
Filename
1170566
Link To Document