| Subject: | Re: What causes recording rumble? |
|---|---|
| From: | madl74 |
| Date: | Sun Jun 28, 2015 5:53 pm ((PDT)) |
> Here=92s a screenshot showing the signal from the dummy mic: https://www.= dropbox.com/s/tfr8kc5aii1sxlt/Rumble.jpg Charles, Looks like good old square wave mains hum with all the odd harmonics to me= going by the top frequency scale. The even harmonics cancel out in a square= wave due to symmetry. Are you using a mains adaptor or is it near one? David Brinicombe |
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