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I'm running Zoom 5.8.0 on Ubuntu Linux 20.04.3 LTS. I'm having a problem with one of my input devices: the "Input Level" bar in the Audio Settings is not accurately telling me whether the input is working. Sometimes it shows no input, even though I'm being heard loud and clear in the meeting.
This is never a problem when I use my Logitech Webcam mic - that always works. The problem is when I use a different USB device: a Scarlett Solo mic interface. I've observed two strange things with it:
As you can see, I cannot solidly predict when the Input Level bar will accurately show input, but it definitely doesn't always show input even when I can be clearly and loudly heard in the meeting.
I've tried accessing the device in two different ways:
In both cases, I get the same problem: I can be heard in the meeting, but the Input Level bar sometimes suggests no input. I end up wasting a lot of time preparing for meetings by testing through other means (starting my own meeting and recording), and hoping that I'll get the same behavior when I join the actual meeting.
Is there a way to get that indicator working more reliably?
Does this happen mainly after you've used your in another application, and while Zoom has been open in the background?
I would close any other apps using your Scarlett, then close Zoom entirely, then open Zoom, then check.
On Windows, as a comparison, I'd suspect something like this to be about allowing apps to take exclusive control of your audio device - or something like that...
Thanks for the response, @Rupert . No, device contention is not the issue: Zoom is definitely getting the mic, it's just not showing deflection in the UI.
Here's a video showing the problem (the audio is from the recorded Zoom session, the video from a screen capture tool, since Zoom doesn't show its own windows in recorded screen shares). The audio is very low in the first half, illustrating the first problem described in my original posting. https://www.dropbox.com/s/hqwxp7x7iayyh24/zoom_problem_demonstration.mp4?dl=0