Hello friends,
I am very confused, and perhaps that is why I am hearing static and white noise even though I am recording total silence.
Here is what I am doing: I disabled the built in mic, I muted the USB Samson co3u mic, and also lowered the mic level on both the computer and audacity. With all that done I am still getting the mic meter flickering between 50 to 60 db.
Shouldn't the mic meter be still with no pulse, since I disabled any chance of recording?
Please help explaining.
Thanks a lot!
Mic meter has a pulse even though mic volume is muted?
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This forum is for Audacity on Windows.Please state which version of Windows you are using,
and the exact three-section version number of Audacity from "Help menu > About Audacity".
Audacity 1.2.x and 1.3.x are obsolete and no longer supported. If you still have those versions, please upgrade at https://www.audacityteam.org/download/.
The old forums for those versions are now closed, but you can still read the archives of the 1.2.x and 1.3.x forums.
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countryfan_nt
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kozikowski
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Re: Mic meter has a pulse even though mic volume is muted?
It depends on how the muting is done. -60dB might be the amount of noise in a good microphone amplifier when you unplug the microphone but left the amplifier running. It could also be the amount of noise in the system if you left analog Line-In running but defeated the microphone channel.
If you record it, Effect > Amplify, and do Analyse Spectrum on it, do you get a nice carpet of more or less flat noise? or do you get a very serious series of sharp spikes at the right-hand side? Flat noise is probably portions of the analog audio system still running. Sharp spikes could be digital instabilities -- such as what happens when you run a USB microphone through a USB hub.
Creating digital noise is not unheard of, but it's pretty rare.
Koz
If you record it, Effect > Amplify, and do Analyse Spectrum on it, do you get a nice carpet of more or less flat noise? or do you get a very serious series of sharp spikes at the right-hand side? Flat noise is probably portions of the analog audio system still running. Sharp spikes could be digital instabilities -- such as what happens when you run a USB microphone through a USB hub.
Creating digital noise is not unheard of, but it's pretty rare.
Koz