Best Subtle Compressor Settings for Podcasts in Audacity

This guide details the recommended compressor threshold and complementary settings for achieving natural, transparent podcast vocals in Audacity. By applying subtle compression, you can tame unexpected volume spikes, elevate quieter words, and deliver a smooth listening experience without making your voice sound squashed or robotic.

The Recommended Threshold Setting

For subtle, natural vocal compression in Audacity, set the Threshold between -12 dB and -16 dB.

The threshold determines the level at which the compressor starts reducing volume. A threshold in the -12 dB to -16 dB range ensures that the compressor only acts on the louder peaks of standard conversational speech (such as laughter, sudden emphasis, or shouting), leaving the majority of your normal vocal performance untouched.

Because audio recording levels vary, the optimal threshold depends on your initial recording volume:

• Target Peak Reduction: Aim for 2 dB to 4 dB of gain reduction during your loudest speaking moments.
• Finding Your Specific Threshold: Look at your raw audio track's waveform. Identify the average peak level of your normal speech. Set the threshold roughly 2 dB to 4 dB below your highest natural peaks. If your voice normally peaks around -10 dB, set the threshold to -14 dB.

Complete Settings for Subtle Podcast Compression

In Audacity, the threshold works directly in tandem with other parameters. Use the following combination for clean, transparent voice processing:

• Threshold: -12 dB to -16 dB (activates compression only during peaks).
• Noise Floor: -40 dB to -50 dB (prevents the compressor from boosting room tone or background hiss during silent pauses).
• Ratio: 2:1 to 2.5:1 (provides gentle dynamic control; avoid going above 3:1 for natural speech).
• Attack Time: 0.1 secs to 0.2 secs (fast enough to catch abrupt volume bursts without dulling speech transients).
• Release Time: 1.0 secs (allows the audio to return to normal volume smoothly and imperceptibly).
• Make-up gain for 0 dB after compressing: Unchecked (keeps output gain manual to prevent unexpected clipping).
• Compress based on Peaks: Checked (reacts to instantaneous spikes, ideal for speech clarity).

How to Apply and Verify the Settings

1. Select your vocal track in Audacity.
2. Navigate to Effect > Volume and Compression > Compressor.
3. Input the settings listed above.
4. Click Preview to listen to a brief section containing both loud and quiet phrases.
5. Click Apply.
6. Inspect the resulting waveform. The loudest peaks should be visibly lowered and more consistent with the surrounding audio, while the quietest sections remain clear without introduced hiss. If the vocal sounds strained or muffled, raise the threshold toward -12 dB or reduce the ratio to 1.8:1.