Enhance the Audio in Audacity
Now that we have the voice file in Audacity, we can clean it up and improve its quality. Here’s the correct order of operations for the best results:
Noise Reduction
Background noise is a problem and has to be removed as much as possible as early as possible. Before Audacity can reduce noise, it needs to learn what the noise sounds like.
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Find a section of your recording where only noise is present (e.g., a pause with background hum).
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Highlight this section by clicking and dragging over it.
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Go to Effect (1) > Noise Reduction.(2)
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Click Get Noise Profile(3)—this tells Audacity what to remove.

Now that Audacity knows what the noise sounds like, you can remove it from the whole track.
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Select the entire track (Ctrl + A).
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Go to Effect > Noise Reduction again.
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Adjust the following settings:
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Noise Reduction (dB): (Start with 6–12 dB. Higher values remove more noise but may distort speech.)
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Sensitivity: (3–6 is a good starting point. Too high, and it removes parts of the voice.)
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Frequency Smoothing (Hz): (0–3 is best for speech; higher values may make the voice sound unnatural.)
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Click Preview to hear the effect before applying it.
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Click OK to apply noise reduction.
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Step 3: Fine-Tune If Needed
If your audio still has noise:
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Redo Noise Reduction with slightly different settings.
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If speech sounds too robotic, lower the Noise Reduction (dB) value.
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If some noise remains, increase Sensitivity slightly.
Normalize the Audio

Apply the Filter Curve EQ
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Go to Effect > Filter Curve EQ > Presets & Settings > Import.
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Instead of manually adjusting frequencies, you can ask ChatGPT to suggest an EQ profile for your voice.


This is a text version of a filter EQ Setting.
Apply Compression

Apply a Final Normalize Effect (Optional)
Remove Unwanted Sounds (Breaths & Mouth Clicks)
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Identify faint breathing or unwanted mouth sounds in the waveform.
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Select them and use Effects > Amplify, applying negative gain to reduce volume.


Export the Final Audio
Once you're happy with the improvements:
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Go to File > Export.
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Choose MP3 or WAV format.
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Save and use the cleaned-up audio in your videos or courses.
Use ChatGPT to Optimize Your Sound
If you're unfamiliar with Audacity, watching a YouTube tutorial is a great starting point.
Even though ChatGPT cannot hear sounds, it can analyze digital audio properties. If you copy a short segment of your waveform data (text representation) and paste it into ChatGPT, it can suggest improvements based on typical human perception of audio clarity, frequencies, and noise reduction techniques.
Final Thoughts
With this workflow, you can turn AI-generated voices (and others) into professional-quality audio without expensive equipment. Even if you have a cheap microphone, following these steps can significantly enhance sound quality and make your content more engaging. (I have a very cheep mic. I f you think I should buy a more expensive one please leave a comment in the forum below...)