Reverb Calculator
Calculate audio reverb settings and room acoustics!
Latest Updates & Tips
Understanding Reverb Time
Reverb time (RT60) is how long it takes for sound to decay by 60dB. Small rooms need 0.3-0.6s, while concert halls use 1.5-2.5s for rich sound.
November 04, 2025
Material Absorption Coefficients
Different materials absorb sound differently. Wood absorbs 10-15%, concrete 2-5%, and acoustic foam up to 90% at certain frequencies.
November 03, 2025
Pre-Delay Settings
Pre-delay is the gap between direct sound and reverb. Use 10-30ms for vocals, 30-60ms for drums, and 60-100ms for large spaces.
November 02, 2025
EQ Your Reverb
Cut low frequencies (below 200Hz) to avoid muddy reverb. Boost 2-4kHz for clarity and presence in your mix.
November 01, 2025
Reverb Calculator Guides & Articles
Learn how to create perfect acoustic spaces and reverb settings
Room Acoustics Basics:
- Room Volume: Larger rooms create longer reverb decay times naturally
- Surface Materials: Hard surfaces reflect sound, soft materials absorb it
- Room Shape: Parallel walls create standing waves, angled walls reduce them
- Frequency Response: Low frequencies require more absorption than high frequencies
Reverb Type Guide:
- Room Reverb: 0.3-0.6s decay - Natural, intimate sound for vocals
- Hall Reverb: 1.0-2.0s decay - Spacious, classical music ambience
- Plate Reverb: Bright, dense - Perfect for drums and percussion
- Spring Reverb: Vintage character - Great for guitars and surf music
Frequently Asked Questions
RT60 is the time it takes for sound to decay by 60 decibels. It's the industry standard for measuring reverb. Shorter RT60 (0.3-0.6s) sounds tight and controlled, while longer RT60 (2+s) sounds spacious and grand.
Larger rooms create longer reverb decay times because sound waves travel further before hitting surfaces. A 100 sq ft room might have 0.3s reverb, while a 5000 sq ft cathedral can have 3-4 seconds.
For vocals, use room or hall reverb with 0.8-1.5s decay time. Add 15-30ms pre-delay to separate the dry vocal from the reverb. Cut frequencies below 200Hz to keep clarity.
Add absorption materials like acoustic panels, thick curtains, or carpets. Focus on first reflection points (walls/ceiling where sound bounces once). Diffusers scatter sound to reduce flutter echo.
Reverb is thousands of reflections creating a wash of sound. Delay is distinct, separate repetitions. Reverb creates space and ambience, while delay creates rhythmic effects.