Audacity: Apply Filter Curve EQ for voice clarity

Master Editor·Oct 2025

Demo summary

The user demonstrates drawing an EQ curve in Audacity, starting with a 'low roll-off for speech' preset and manually adjusting frequency dots to filter out noise below 80 Hz.

Step-by-step

Go to Effect, select EQ and Filter, then Filter Curve EQ.
Select Factory Presets and choose Low roll-off for speech.
Click on the line to create adjustment dots.
Drag the dots to adjust the roll-off to begin at 80 Hz.
Click Apply to finish the EQ step.

Options

Slightly boost frequencies above 4 kHz to make the voice sound brighter
Drag dots out of the window to remove them

Watch out for

Too much boost in high frequencies can make the voice sound harsh.

Tips

Start with a factory preset as a base for voice recordings.
Cut off frequencies below 80 Hz (high-pass filter) to remove low-frequency noise like hum or vibration without affecting the voice.
Stick to a high-pass filter only as a simple and safe starting point.

Highlights

“a complex effect, but we'll keep it simple with a basic EQ”

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Watch “How to make your voice sound good in Audacity - Ultimate Guide” →

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