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.
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Codecs in TrueConf client applications
Opus Wideband HD Audio and VP8 SVC codecs (for audio and video data respectively) are used for video calls and conferences in TrueConf client applications. These codecs provide high quality of connection and audio transmission even in complicated 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 |
H.264 AVC
H.264 SVC Microsoft® X-H264UC H.263 H.261 |
| RTSP-sources и IP-cameras | MP3
AAC |
H.264 |
| For conference streaming | ||
| YouTube, Facebook, Wowza Streaming Cloud, Wowza Streaming Engine | MP3
AAC PCM G.711 |
VP8
H.264 |
| For conference recording and storage | ||
| Available containers .mkv и .mp4 | PCM
AAC |
VP8
H.264 |
