| Subject: | What causes recording rumble? |
|---|---|
| From: | "J. Charles Holt" |
| Date: | Sun Jun 28, 2015 3:36 pm ((PDT)) |
Can anyone tell me why all of my recordings seem to have an intense LF rumb= le? I know that some of it is the recorder itself, as using a dummy mic sho= wed some signal at around 75 Hz, but almost all of my other recordings have= this intense low rumble starting around 200 Hz and going down. Is it dista= nt traffic? The Hum? Here=92s a screenshot showing the signal from the dummy mic: https://www.dr= opbox.com/s/tfr8kc5aii1sxlt/Rumble.jpg <https://www.dropbox.com/s/tfr8kc5ai= i1sxlt/Rumble.jpg> |
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