1. What is Delay and Reverb Calculation?

The delay time calculation converts musical tempo (BPM) to milliseconds for precise timing of audio effects. The reverb time (RT60) calculates how long it takes for sound to decay by 60dB in a room, based on its volume and absorption characteristics.

2. How Does the Calculator Work?

The calculator uses these equations:

Where:

• \( ms \) — Delay time in milliseconds
• \( bpm \) — Tempo in beats per minute
• \( RT60 \) — Reverb time in seconds
• \( V \) — Room volume in cubic feet
• \( a \) — Total absorption in sabins

Explanation: The delay formula converts musical tempo to time intervals, while the RT60 formula estimates how long reverberation persists in a space.

3. Importance of Timing Calculations

Details: Accurate delay times help synchronize effects with musical tempo, while RT60 calculations are essential for acoustic treatment and room design.

4. Using the Calculator

Tips: Enter BPM for delay time calculation. For RT60, provide room volume and total absorption. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: Why 60000 in the delay formula?
A: There are 60,000 milliseconds in a minute (60 seconds × 1000 ms). Dividing by BPM gives ms per beat.

Q2: What are typical RT60 values?
A: Recording studios aim for 0.2-0.5s, concert halls 1.5-2.5s. The ideal depends on room use and size.

Q3: How do I calculate total absorption?
A: Sum the absorption coefficients of all surfaces multiplied by their areas.

Q4: Can I calculate dotted-note delays?
A: Yes, multiply the result by 1.5 for dotted eighth notes or 0.75 for triplet delays.

Q5: What affects RT60 accuracy?
A: Room shape, furniture, air absorption, and measurement frequency all impact real-world RT60.