To enable multilanguage live-streams you will need to use an encoder which supports outputting multiple audio tracks. In addition, you should use an SRT ingest option Secure Reliable Transport.
Table of Contents
Recommended settings
Video 1
| Codec | H.264 |
| Resolution | 1280x720 or higher |
| Frame rate | 25, 30, 50 or 60 (Progressive Scan) |
| Bitrate | 3 - 10 Mbit/s or higher, VBV or CBR |
| Keyframes | every 2 seconds (i.e. double the frame rate) |
Audio (1-N)
The SRT stream contains 1 video channel and n audio channels. Depending on your encoder, up to 16 audio channels can be transmitted.
| Codec | AAC, HE-AAC |
| Sample rate | 44.1 or 48 kHz |
| Bit rate | 128k and higher |
Compatible hardware encoders
| Manufacturer | Protocol |
| Matrox Monarch Edge | SRT |
| Haivision | SRT |
Compatible software encoders
| Software | Protocol |
| FFMPEG | SRT |
Transcoding & delivery
The incoming live signal will be converted by our transcoding engine and is available in the following formats:
- HTTP Live-streaming (HLS) v4+ with Alternative Audio
- MPEG-DASH with Alternative Audio
Both formats are compatible with our video player. It is also possible to play these streams with a 3rd party player, if desired.