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2017 | OriginalPaper | Chapter

15. Quality Evaluation

Author : Tom Bäckström

Published in: Speech Coding

Publisher: Springer International Publishing

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Abstract

For evaluating the performance of speech codecs or their algorithms, we need metrics for quality. Since humans are the ultimate users of most speech codecs, subjective testing is the gold standard in quality measurement. In this chapter we present a range of typical subjective evaluation methods and discuss their strengths and weaknesses. Subjective evaluation requires in general plenty of work and time, whereby there exists a selection of automated objective evaluation methods, which simulate subjective measurements. Objective quality estimation methods therefore provide fast and reproducible measures of quality, even if their reliability can never reach that of extensive subjective measurements.

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previous chapter Relaxed Code-Excited Linear Prediction (RCELP)
Footnotes
1
Applicable only to the listed codecs.
 
Literature
1.
3GPP. TS 26.190, Adaptive Multi-Rate (AMR-WB) Speech Codec (2007)
2.
3GPP. TS 26.445, EVS Codec Detailed Algorithmic Description; 3GPP Technical Specification (Release 12) (2014)
3.
CCIR Document 11/17. Subjective Assessment of the Quality of Television Pictures (EBU) (1978–1982)
4.
ISO/IEC 23003–3:2012. MPEG-D (MPEG Audio Technologies), Part 3: Unified Speech and Audio Coding (2012)
5.
ITU-R Recommendation BS.1284. General Methods for the Subjective Assessment of Sound Quality (2003)
6.
ITU-R Recommendation BS.1387. Method for Objective Measurements of Perceived Audio Quality (PEAQ), 2001
7.
ITU-R Recommendation BS.562. Subjective Assessment of Sound Quality (1990)
8.
ITU-T Recommendation P.800. Methods for Subjective Determination of Transmission Quality (1996)
9.
ITU-T Recommendation P.835. Subjective Test Methodology for Evaluating Speech Communication Systems that Include Noise Suppression Algorithm (2003)
10.
ITU-T Recommendation P.861. Objective Quality Measurement of Telephoneband (300-3400 Hz) Speech Codecs (1996)
11.
ITU-T Recommendation P.862. Perceptual Evaluation of Speech Quality (PESQ): An Objective Method for End-to-end Speech Quality Assessment of Narrow-band Telephone Networks and Speech Codecs (2001)
12.
ITU-T Recommendation P.863. Perceptual Objective Listening Quality Assessment (POLQA) (2011)
13.
Recommendation BS.1534. Method for the Subjective Assessment of Intermediate Quality Levels of Coding Systems. ITU-R (2003)
Metadata
Title
Quality Evaluation
Author
Tom Bäckström
Copyright Year
2017
Book
Speech Coding

Print ISBN: 978-3-319-50202-1

Electronic ISBN: 978-3-319-50204-5

Copyright Year: 2017

DOI
https://doi.org/10.1007/978-3-319-50204-5_15