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SRT audio issues - very strange - Audio is complete unintelligible, sounds like digital pops and crackles
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kierongarlic  
#1 Posted : Saturday, April 12, 2025 8:39:25 PM(UTC)
kierongarlic

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I set up vmix to receive SRT, as a caller. I'm using a 10-900x with vmix 28. I got this weird audio issue.

I assume it was internet, even though video was fine. I tested using 3 ISPs, 2 different firewalls. Same results. So not internet.

I tested on another PC 10-900x, same issue.

Tested on a laptop, it's i7 11-800H with vmix 26, same issue.

I had a friend test from another location on their laptop using vmix 24, works fine.

So then I installed SRT miniserver on my computer, that also works fine.

So everything points to vmix.

The feed I'm getting is H.264/50p @ 12mbps with stereo AAC.

My work around is to decode SRT in SRTMiniserver and tranmux to NDI in to vmix.
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NiBTour  
#2 Posted : Monday, August 18, 2025 2:20:35 PM(UTC)
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So your saying it doesn't work with vmix 28 and 26 but does with 24 on a different machine and miniserver on your machine? What exactly is the problem you are having with audio? That might help a little more even though it works on your system with a different app. Does it work on your buddy system with avmix 26 or 28 or on your laptop at a different location? What about your system but with vmix 24? If you can explain the audio issue i could help with some better ideas to help narrow it down some.

Originally Posted by: kierongarlic Go to Quoted Post
I set up vmix to receive SRT, as a caller. I'm using a 10-900x with vmix 28. I got this weird audio issue.

I assume it was internet, even though video was fine. I tested using 3 ISPs, 2 different firewalls. Same results. So not internet.

I tested on another PC 10-900x, same issue.

Tested on a laptop, it's i7 11-800H with vmix 26, same issue.

I had a friend test from another location on their laptop using vmix 24, works fine.

So then I installed SRT miniserver on my computer, that also works fine.

So everything points to vmix.

The feed I'm getting is H.264/50p @ 12mbps with stereo AAC.

My work around is to decode SRT in SRTMiniserver and tranmux to NDI in to vmix.
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thanks 1 user thanked NiBTour for this useful post.
kierongarlic on 8/18/2025(UTC)
kierongarlic  
#3 Posted : Monday, August 18, 2025 5:03:35 PM(UTC)
kierongarlic

Rank: Newbie

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Joined: 4/12/2025(UTC)
Posts: 2
United Kingdom
Location: London

Thanks: 1 times
The audio issue was an intermittent drop, but very regular. Like it was a buffer issue, but like i said, video was solid. And latency adjustments made no difference.


Originally Posted by: NiBTour Go to Quoted Post
So your saying it doesn't work with vmix 28 and 26 but does with 24 on a different machine and miniserver on your machine? What exactly is the problem you are having with audio? That might help a little more even though it works on your system with a different app. Does it work on your buddy system with avmix 26 or 28 or on your laptop at a different location? What about your system but with vmix 24? If you can explain the audio issue i could help with some better ideas to help narrow it down some.

Originally Posted by: kierongarlic Go to Quoted Post
I set up vmix to receive SRT, as a caller. I'm using a 10-900x with vmix 28. I got this weird audio issue.

I assume it was internet, even though video was fine. I tested using 3 ISPs, 2 different firewalls. Same results. So not internet.

I tested on another PC 10-900x, same issue.

Tested on a laptop, it's i7 11-800H with vmix 26, same issue.

I had a friend test from another location on their laptop using vmix 24, works fine.

So then I installed SRT miniserver on my computer, that also works fine.

So everything points to vmix.

The feed I'm getting is H.264/50p @ 12mbps with stereo AAC.

My work around is to decode SRT in SRTMiniserver and tranmux to NDI in to vmix.
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