Question / Help Prioritizing audio over video

[Donatien Sade]

Hi All,

I wonder if there is a way to prioritize audio over video streaming when the Internet speed drops.
I stream live jam sessions so a smooth audio transmission is very important and more important than the video.
During my first stream, everything was fine except towards the end were the audio got chopped and scrambled.

Useful Notes:
- I did run the initial script and use the "ideal" configuration the script picked.
- I stream a pre-recorded video & audio, from a MOV file.

Cheers,

Miguel

 

[TylerDurd0n]

Correction: While it's true that ingest servers expect a constant bitrate, there is a difference between reducing such constant bitrate dynamically and encoding a stream with a variable bitrate. That was an error on my part which I also clarified in a later response.

Original post:

IIRC most streaming service's ingest servers don't play nice with variable bitrates, but require a constant bitrate. So if OBS would reduce video bitrate to allow the audio bitrate to stay at a high enough level, your stream would have a variable bitrate.

Another option would be to split audio and video into two separate RTMP streams (which isn't something that any service supports right now), but even then the variability issue for the video stream would persist

 

[Donatien Sade]

Hi TylerDurd0n,

I see... it makes sense, then.

I guess the solution is to just get a better/faster Internet connection.

Thanks for your reply,

Miguel

 

[TylerDurd0n]

Actually I spoke to soon - there is a pull request for this feature (actually one of the oldest remaining), but it requires votes and community interest: https://ideas.obsproject.com/posts/349/dynamic-bitrate-support

The way it's implemented it dynamically adjusts the constant bitrate for the video stream if network congestion occurs, so it should play well with Twitch or YouTube.

 

[Donatien Sade]

Thanks, I just voted. :)