Which codecs are used in TrueConf video conferencing software?

TrueConf Server supports a variety of codecs for different video conferencing scenarios.

A codec is a software implementation of a standardized mathematical algorithm for data or signal compression and decompression. Codecs are widely used for audio and video processing.

Codecs in TrueConf client applications

For video calls and videoconferences in TrueConf client applications, the Opus Wideband HD Audio and VP8 SVC codecs are used (for audio and video data processing, respectively), ensuring high-quality voice and communication even under challenging network conditions.

Opus Wideband HD Audio codec is considered to be the best scalable audio codec for VoIP, featuring excellent audio quality, high performance and minimal encoding delay.

VP8 SVC is an improved version of VP8 codec, adapted to SVC technology by TrueConf experts.

VP8 codec is distributed under a royalty-free public license is notable for its speed of decoding, high degree of compression and flexibility.

Codecs which are used in TrueConf solutions

In the table below, you can find codecs that are used for connection between TrueConf Server and legacy video conferencing endpoints (via SIP/H.323/RTSP protocols), as well as for streaming, recording and web conferencing:

	Audio codecs	Video codecs
During conferences
TrueConf client applications	Opus G.711 G.722 G.722.1 G.722.1C G.723 G.728 G.729A	VP8 SVC H.264
WebRTC	Opus G.711	VP8 H.264
For connecting to legacy video conferencing endpoints
SIP / H.323 endpoints	Speex G.711 G.722 G.722.1 G.722.1C G.723 G.728 G.729A	VP8 H.265 H.264 High Profile H.264 Main Profile H.264 Baseline Profile Microsoft® X-H264UC H.263 H.261
RTSP-sources and IP-cameras	MP3 AAC	H.264
For conference streaming
YouTube, Wowza Streaming Cloud, Wowza Streaming Engine	MP3 AAC PCM G.711	VP8 H.264
For conference recording and storage
Available containers .mkv and .mp4	PCM AAC	VP8 H.264