Subjective quality evaluation of the 3GPP EVS codec

Author

Ramo, Anssi ; Toukomaa, Henri

Author_Institution

Nokia Technol., Tampere, Finland

fYear

2015

fDate

19-24 April 2015

Firstpage

5157

Lastpage

5161

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech and Signal Processing (ICASSP), 2015 IEEE International Conference on

Conference_Location

South Brisbane, QLD

Type

conf

DOI

10.1109/ICASSP.2015.7178954

Filename

7178954