Audio Codecs
OPUS
The OPUS codec is supported when streaming in RTSP(S), SRT, and Multicast UDP protocols. If you will be viewing the stream in a web browser via WebRTC, use this codec for the best quality.
AAC
AAC is supported in all streaming protocols. If you will be viewing the stream in a web browser make sure to view it via HLS. HLS supports AAC audio while WebRTC does not.
G711
The G711 codec is locked to a sample rate of 8000hz and mono audio. Both RTSP(S) and RTMP(S) support G711 while SRT does not.
Compatibility Matrix
OPUS |
AAC |
G711 |
|
|---|---|---|---|
RTSP(S) |
Yes |
Yes |
Yes |
RTMP(S) |
No |
Yes |
Yes |
SRT |
Yes |
Yes |
No |
Multicast UDP |
Yes |
Yes |
No |