1 Scope
2 References
3 Definitions
3.1 Terms defined elsewhere
4 Abbreviations and acronyms
5 Conventions
6 Overview of the ITU-T P.863 algorithm
7 Comparison between objective and subjective scores
8 Speech material
8.1 Recommendations on source speech material
8.2 Insertion of source speech material into the system under test
8.3 Recommendations on processed and degraded speech material
8.4 Special requirements for acoustical captured speech material
8.5 Acoustical insertion/capture for loudspeaker phones
8.6 Technical requirements on signals to be processed by ITU-T P.863
reference source code as given in Annex C
8.7 Predicted scores by the model
9 Description of the ITU-T P.863 algorithm
9.1 Overview
9.2 Temporal alignment
9.3 Joining sections with constant delay
9.4 Sample rate ratio detection
9.5 Resampling
9.6 Level, frequency response and time alignment pre-processing
9.7 Perceptual model
10 Conclusions
Annex A – Conformance data and conformance tests
A.1 List of files provided for conformance validation
A.2 Conformance tests
A.3 Conversion of sampling rates
A.4 Digital attachments
Annex B – Specification source code of the ITU-T P.863 algorithm in C++
notation
Appendix I – Reporting of the performance results for the ITU-T P.863 algorithm
based on the rmse* metric
I.1 Purpose of this appendix
I.2 Overview
I.3 Performance results for the ITU-T P.863 algorithm
I.4 Calculation of rmse*
I.5 Scatter plots
Appendix II – Description of the "full-scale" subjective tests in a
superwideband context conducted for the ITU-T P.863 algorithm training and
validation
II.1 Database structure and subjects requirement
II.2 Anchor conditions
II.3 Design rules of test conditions for full-scale mandatory tests
II.4 Reference and degraded speech material
II.5 Transmission and capturing capture of speech material
superimposed interlaced with background noises
II.6 Transmission and capturing capture of speech material under
time warping conditions
II.7 Subjective test set up for assessing superwideband speech
quality
II.8 Limitations in subjective test results
Bibliography