Modulation (Reverb)

Definition

In reverb processing, modulation refers to subtle variations applied to the reverb tail, typically through pitch shifting, time variation, or filtering. It adds movement and liveliness to the reverb sound.

Types of Reverb Modulation

Pitch/Frequency Modulation

Subtle pitch variations in the reverb tail:

• Adds chorus-like shimmer
• Prevents metallic or static sound
• Creates richer, more organic character

Time Modulation

Variations in delay times within the algorithm:

• Randomizes reflection patterns
• Reduces flutter echoes
• Adds natural irregularity

When to Use Modulation

• Pads and synths: Higher modulation for movement
• Vocals: Subtle modulation for richness
• Acoustic instruments: Light modulation to prevent static sound
• Sound design: Extreme modulation for creative effects

Parameters

• Rate: Speed of modulation (typically 0.1-2 Hz)
• Depth: Intensity of the effect

Related Terms

• Chorus
• Shimmer
• LFO