11th Annual Conference of the International Speech Communication Association

Makuhari, Chiba, Japan
September 26-30. 2010

Voice Quality Evaluation of Recent Open Source Codecs

Anssi Rämö, Henri Toukomaa

Nokia Research Center, Finland

This paper introduces Silk, CELT, and BroadVoice that are available in the internet as open source voice codecs. Their voice quality is evaluated with a subjective listening test. AMR, AMR-WB, G.718, G.718B, and G.722.1C were used as stan- dardized references. In addition Skypeís Silk codecís peculiar bandwidth and bitrate characteristics are examined in more detail.

Full Paper

Bibliographic reference.  Rämö, Anssi / Toukomaa, Henri (2010): "Voice quality evaluation of recent open source codecs", In INTERSPEECH-2010, 2390-2393.