Title :
Subjective quality evaluation of the 3GPP EVS codec
Author :
Ramo, Anssi ; Toukomaa, Henri
Author_Institution :
Nokia Technol., Tampere, Finland
Abstract :
This paper discusses the voice and audio quality characteristics of EVS, the recently standardized 3GPP codec. Comparison to Opus, IETF driven open source codec as well as industry standard voice codecs: 3GPP AMR and AMR-WB, and ITU-T G.718B, G.722.1C and G.719 as well as direct signals at varying bandwidths was made. Voice and audio quality was evaluated with three subjective listening tests containing clean and noisy speech in Finnish language as well as a mixed condition test containing both speech and music intermixed. Nine-scale subjective mean opinion score was calculated for all tested conditions.
Keywords :
3G mobile communication; audio coding; 3GPP EVS codec; Finnish language; IETF driven open source codec; Opus; audio quality; audio quality characteristics; direct signals; music intermixed; noisy speech; speech intermixed; subjective quality evaluation; voice quality; voice quality characteristics; Bit rate; Codecs; Noise measurement; Speech; Speech coding; Wideband; listening test; mean opinion score; multi-bandwidth testing; multi-rate codec; speech coding; subjective evaluation;
Conference_Titel :
Acoustics, Speech and Signal Processing (ICASSP), 2015 IEEE International Conference on
Conference_Location :
South Brisbane, QLD
DOI :
10.1109/ICASSP.2015.7178954
