Notch Filter Notch Filter Remove a single frequency such as 60 Hz or 50 Hz hum.
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Notch Filter Tags

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Notch Filter Description

Remove a single frequency such as 60 Hz or 50 Hz hum. Like its name suggests, a notch filter cuts out a "notch" in the spectrum of your audio. The default frequency is 60Hz, great for removing 60Hz electrical hum, if your recording equipment has picked this up. The filter features three default choices: remove 60hz, 50hz or variable frequency. If variable frequency is chosen, set this in the next edit field. The third control, q, determines the width of the notch cut from your audio. Default q is 1, below 1 creates a wider notch, above 1creates a narrower notch. Works on mono and stereo audio. Requirements: Audacity

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