INDEPENDENT EVALUATION OF THE PERFORMANCE OF THE CCITT G. 722 WIDEBAND CODING RECOMMENDATION USING MUSIC SIGNALS.


Autoria(s): Smyth, S.M.F.; McCanny, J.V.; Challener, P.
Data(s)

01/01/1988

Resumo

The subjective performance of the G. 722 7-kHz wideband speech-coding recommendation using music signals is described. A number of audible distortions specific to music signals were found to be present in real-time evaluations of the coder. As a result, three modifications are proposed which are found to improve the performance for music signals. These modifications are compatible with the G. 722 system configuration. The results obtained clearly demonstrate the very high coding efficiency of subband ADPCM (adaptive differential pulse-code modulation) with comparison to digitally companding and ADM schemes when applied to music signals.

Identificador

http://pure.qub.ac.uk/portal/en/publications/independent-evaluation-of-the-performance-of-the-ccitt-g-722-wideband-coding-recommendation-using-music-signals(4837b088-e581-41a6-983b-a5aaea937635).html

http://www.scopus.com/inward/record.url?partnerID=yv4JPVwI&eid=2-s2.0-0023709492&md5=04e5b34abf2f5f127942d31a8a26ed66

Idioma(s)

eng

Direitos

info:eu-repo/semantics/restrictedAccess

Fonte

Smyth , S M F , McCanny , J V & Challener , P 1988 , ' INDEPENDENT EVALUATION OF THE PERFORMANCE OF THE CCITT G. 722 WIDEBAND CODING RECOMMENDATION USING MUSIC SIGNALS. ' ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings , pp. 2532-2535 .

Tipo

article