Tags Tag archive: 'Opus'

November 2, 2016

Audio FEC Experimentation

Contributed by dminor@mozilla.com,

We recently enabled Forward Error Correction (FEC) for audio streams in Firefox’s WebRTC implementation using the built in support provided by the Opus codec. FEC creates a redundant, low bitrate encoding of audio that can be used to recreate lost packets. Since enabling FEC requires splitting some of the bitrate for use by the redundant encoding that could otherwise be used for the primary encoding, it was important to test whether or not FEC would actually result in improved call quality. (more…)