Seems to be coming from Firefox. It crashed, the noise stopped. No idea why or how.
On Fri, Oct 2, 2020, 11:51 AM Alan Corey <alan01...@gmail.com> wrote: > I'm on a Raspberry Pi 3B, using HDMI sound fed to a Dell monitor about > 10 years old. No internal speaker in it but I use an analog out jack > it has and drive a pair of amplified computer speakers. It's getting > worse lately. > > If I unplug the analog input to the powered speakers it goes away. > If I turn down HDMI sound in AlsaMixer it goes away. > > I can make a recording in Audacity of tone, silence, tone, silence, > then play it and I near the frying on top of all like it's mixed in. > > I have no other (like USB) sound card plugged in. Where can it be coming > from? >
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