Broadcast-quality audio processing guide for Audacity
Hit record and remain completely silent for 4 to 8 seconds. This creates a "Noise Profile" that is essential for removing background hiss and AC hum later.
Highlight the silence. Go to and click "Get Noise Profile". Then select everything (Ctrl+A), return to the menu, and click OK.
Open . Go to Factory Presets and apply Bass Boost. Open it once more and apply Treble Boost for high-end clarity.
Inside , select Factory Presets > Low roll-off for speech. This eliminates low-end rumble and makes the vocal frequency tighter.
Go to . Apply the default settings to smooth out the difference between your loudest and quietest words.
Go to . Set Peak Amplitude to 0.0 dB and Apply. This pushes your volume to the professional standard.