Audacity Reverb Wet Gain vs Dry Gain Explained

In Audacity’s Reverb effect, wet gain and dry gain are the two primary controls used to balance the original audio with the generated reverberation. Dry gain adjusts the volume of the unprocessed, original sound, while wet gain adjusts the volume of the added reverberation effect. Understanding the relationship between these two sliders allows you to place audio precisely in a virtual space, ranging from an intimate, up-front vocal to a distant, ambient soundscape.

What Is Dry Gain?

Dry gain controls the volume of the original, unaffected audio signal passing through the effect.

How it works: Measured in decibels (dB), increasing the dry gain makes the direct, original sound louder and more prominent. Decreasing it reduces the presence of the original signal.
The result: A higher dry gain keeps speech or lead instruments crisp, direct, and intelligible, ensuring they sound close to the listener. If dry gain is set to minimum (-∞ dB), none of the original source audio is heard directly.

What Is Wet Gain?

Wet gain controls the volume of the synthesized reverb reflections—the "room sound" or "tail" generated by the effect.

How it works: Also measured in decibels (dB), raising the wet gain increases the volume of the echoes and reflections produced by your selected room parameters. Lowering the wet gain makes the reverb subtler.
The result: A higher wet gain creates a sense of larger physical space, sustained tails, or immersion. If wet gain is set to minimum (-∞ dB), no reverberation is added, effectively leaving the track sounding as if no effect was applied.

Key Differences at a Glance

Feature	Dry Gain	Wet Gain
Signal Source	Original, unprocessed audio	Generated reverb reflections
Impact on Audio	Clarity, presence, upfront feel	Atmosphere, space, depth, tail length
High Setting	Sounds close, intimate, and punchy	Sounds washed out, distant, or cavernous
Low Setting	Pushes the source back or removes direct sound	Minimal to no room acoustics

How to Balance Wet and Dry Gain

Natural Vocal or Dialogue: Keep dry gain at 0 dB and bring wet gain down between -12 dB and -24 dB. This preserves vocal clarity while introducing subtle natural room reflections.
Distant or Dreamy Ambience: Lower the dry gain to -6 dB or lower, and raise the wet gain toward 0 dB. This creates a soft, ethereal sound where the direct source is masked by the reverb wash.
100% Wet (Reverb Only): Reduce the dry gain entirely to -∞ dB and leave wet gain active. This technique is typically used on a separate duplicate track for parallel processing, allowing independent equalization and compression of the reverb itself without affecting the main audio.