Perceptual and objective evaluation of speech processed by adaptive differential pcm

An experiment has been performed to study the perceptual characteristics of speech processed by adaptive differential PCM. We created 18 three-bit and four-bit coders spanning a wide range of quantizer adaptation parameters. Subjects judged differences between coders and rated the quality of each co...

Full description

Saved in:
Bibliographic Details
Published inBell System Technical Journal Vol. 57; no. 5; pp. 1597 - 1618
Main Authors McDermott, B., Scagliola, C., Goodman, D.
Format Journal Article
LanguageEnglish
Published Oxford, UK American Telephone and Telegraph Company 01.05.1978
Blackwell Publishing Ltd
Subjects
Computational Linguistics
Noise
Speech Perception
Speech Synthesis
Online AccessGet full text
ISSN0005-8580
1538-7305
DOI10.1002/j.1538-7305.1978.tb02113.x

Cover

More Information
Summary:An experiment has been performed to study the perceptual characteristics of speech processed by adaptive differential PCM. We created 18 three-bit and four-bit coders spanning a wide range of quantizer adaptation parameters. Subjects judged differences between coders and rated the quality of each coder individually. The difference data reveal three important perceptual characteristics: overall clarity, signal vs. background degradation, and rough vs. smooth impairment. These characteristics are strongly correlated with coder design parameters and objective performance measures. Overall subjective quality is well predicted by segmental signal-to-noise ratio and even better by a linear combination of measures of granular distortion and overload distortion.
Bibliography:istex:C083590029A7D866A50C2AC1791E4D4C1B2568AF
ArticleID:BLTJ2113
ark:/67375/WNG-SQLSRSBS-7
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0005-8580
1538-7305
DOI:10.1002/j.1538-7305.1978.tb02113.x