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Audacity: mains hum removal - how to

  • Jan 14, 2021
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In Audacity you can hum with a few clicks Network of your shots remove. We explain to you how this works.

Mains hum removal using Audacity

Mains hum you can in Audacity with the Notch Filter in a few steps to filter out:
  1. Navigate to the Audio Software via the "effects" of the "Notch Filter".
  2. Mains hum can be approximated by a square wave with a fundamental frequency of 50 Hz. So set initially a frequency of 50 Hz.
  3. The Q-factor is the slope of the Filter, which is why it is very high can set.
  4. Confirm with "OK" and listen to the result. You will probably have to repeat these steps even for 150 Hz, 250 Hz, ..., 950 Hz.
  5. The American power grid, the frequencies that you need to filter out 60 Hz, 180 Hz , 300 Hz, so 60 x (2 n + 1 ), where "n" is an integer.
Audacity: Notch Filter
As you hum with Adobe autdition remove can, we will explain in a further practical tip.