ASIO 8 Channel Focusrite desyncing/layering echo

[LegendaryAction]

I am hoping that someone in the community might be able to offer some advice. We recently upgraded to a 8 Channel focusrite There is an audio echo that seems to be more like delayed layer audio. It does not present the whole time but does come and go. This audio effect did not present itself when monitoring through OBS. Everything sounded crisp and clear. However, it did present itself on the recording and has come across in previous broadcasts. We were just recording as we are trying to troubleshoot this issue. We are working with scarlett 18i20. We also are working with the latest asio plugin v3.1.0. We are working with 7 microphones and one line that is for background music so 8 lines in total. in obs, they are each added as a mono ASIO device so we can add gates to each line and some miner filters.

Audio Error Example
Youtube Video

I am not sure if 8 individual lines with miner filters are too much or if it's an obvious sound issue that I just lack the experience to address properly. When looking at system resources there does not appear to be much stress on the machine and we have a separate capture card so I don't believe it to be a USB3 bandwidth issue.

Thank you for any assistance in advance! I appreciate your time in helping our modest production.
-Alex

 

[konsolenritter]

In your example video the issue happens to just one single of the five or six microphones, isn't it?
You should test whats different for this mic/audio path.
Difficult to tell for foreign readers cause your log consists dozens of changes to your asio channels.

 

[LegendaryAction]

In your example video the issue happens to just one single of the five or six microphones, isn't it?
You should test whats different for this mic/audio path.
Difficult to tell for foreign readers cause your log consists dozens of changes to your asio channels.

ohhhh! I apologize! I hadn't even considered that when I pulled the log or that there was a log. It was me setting them up as 8 mono channels as I want to put obs filters on each one (gates and such because we are sitting together). All of the mics have the same filters and follow the same rout. It also comes in and out. like chase (the guy with brown hair in the lower left) I know the clip wasn't all-encompassing I was just trying to get a sample up of what's happening.

Here is the DM ( a different mono line with the same filters) exhibiting the same issue it started soft and then became more exaggerated and then went away like that monoline desynced or something.

Clip

I will try and recreate it this evening when I head back overthere and see if i can post a better log that is exhibiting the same issue. Thank you so much for the input!
-Alex

 

[konsolenritter]

Filters and gates on the channels may worsen the things as you experienced. Your goal is that just one mic opens when its user's speaking, not the others. So if everyone (and everything) stays calm, the sound keeps calm. The downside of gates is: as soon as a gate opens, its kept open by speech and noises around (there is always an hysteresis on that open-close switching moment).

So what you look for is merely a mixer with an feature called AUTOMIX within that does the job for you: handling and (virtually) handover the primary speech mic between the participants in your circle, even when sitting in the same room. A good automix algorithm isn't easy to write, and it's nearly impossible to rebuild it behaviour by single and independent gate or expander functions on independent audio channels.

So check if an external mixer would do that for your group hasslefree:

- YouTube

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It even allows to set weights to single microphones, so its possible to prefer - for instance - the mic of the host or leader.
And it does completely free your streaming machine from that task by preparing a ready-mixed stereo feed for it.