Hi everyone,

I’m using vMix Call regularly for our news show and I’m facing an unusual audio issue for the past week. When I create a new vMix file configuration, everything works perfectly at first. However, after 1–2 hours, the audio starts developing a noise/distortion — something like a “chit-chit” sound.

During troubleshooting, I found that if I create a new configuration again, the issue disappears, but only for another 1–2 hours before the noise comes back. Streaming and all other functions remain normal throughout.

We are using a Netgear AV switch in our setup, in case that information is useful.

This is my first post in the forum, so any guidance or suggestions on what could be causing this issue will be highly appreciated.
Thank you.

I always keep the stats window open during calls to monitor the bandwidth. The video remains fine consistently — only the audio is affected.

Ok, so it starts great and then always at 1-2 hours it starts to degrade. Have you checked your Antivirus software or further down the line at network level some packet inspection.