Start by setting the 'Return' knob and the 'Floor' knob to 0.00dB. This ensures that your audio recording drops to 0db whenever it is below the threshold. To prevent any background noise from passing through the gate, adjust the 'Threshold' to sit directly above the volume of your background noise.
How do you get rid of noisy background noise?
Removing Background Noise Step-by-step
- Open Audacity, click “File” and “Open” and locate the file you want to fix.
- Select your “Room Tone” by dragging your mouse over a section where there is little or no audio sound.
- Select the “Effect” menu and then select “Noise Reduction”