Reverberation Time
Estimate room RT60 reverberation time from volume, materials and absorption.
Open calculator →Audio Calculators and Acoustic Design Tools
Use AudioDesignSpace tools to calculate room acoustics, acoustic treatment, speaker enclosures, crossover values, PA timing and studio setup dimensions. These calculators are designed for audio engineers, studio builders, speaker designers and DIY audio projects.
39 calculators
The strongest calculator groups are linked here as crawlable HTML sections, with deeper room acoustics and speaker design hubs for related workflows.
Room Acoustics Calculators
Plan room behavior, treatment depth and acoustic targets before you build or measure. These calculators cover RT60, room modes, bass traps, tuned absorbers, diffusers, acoustic panel coverage and wavelength relationships.
Bass Trap
Estimate low-frequency absorber depth for porous and tuned bass traps.
Open calculator →Helmholtz Resonator
Calculate Helmholtz resonator tuning from cavity volume, neck area and neck length.
Open calculator →QRD Diffuser
Schroeder quadratic residue well depths.
Open calculator →Acoustic Panel Calculator
Estimate how many acoustic panels a room may need and where coverage should start.
Open calculator →Room Mode Calculator
Calculate room mode frequencies and identify low-frequency resonances for treatment planning.
Open calculator →PA and Live Sound Calculators
Set up live sound systems with timing, coverage and level estimates that are quick to check on site. These calculators help with PA delay, line array delay, speaker coverage, SPL loss, Haas timing and feedback margin.
PA Delay
Calculate PA speaker delay time from distance, temperature and speed of sound.
Open calculator →Line Array Delay
Per-cabinet delay for arc or straight taper.
Open calculator →SPL Distance
Inverse-square loss and multi-source sum.
Open calculator →Coverage Angle
Coverage width and SPL at throw distance.
Open calculator →Haas / Precedence
Delay zones and psychoacoustic guidance.
Open calculator →Feedback Margin
Estimated stable gain before feedback.
Open calculator →Speaker Design Calculators
Design practical loudspeaker and subwoofer enclosures from dimensions, tuning goals and driver data. Use these tools for box volume, bass reflex ports, slot ports, Thiele-Small alignment, baffle step, crossovers and SPL estimates.
Speaker Box Volume
Calculate internal loudspeaker enclosure volume from panel dimensions.
Open calculator →Speaker Box Volume (3D)
Calculate internal speaker enclosure volume with a 3D cabinet preview for DIY loudspeaker design.
Open calculator →Bass Reflex Port
Calculate bass reflex port length from box volume, tuning frequency and port diameter.
Open calculator →Slot Port
Rectangular slot port dimensions for vented speaker enclosures.
Open calculator →Thiele-Small Alignment
Sealed and ported volume suggestions.
Open calculator →Baffle Step
Baffle-step frequency from width.
Open calculator →Crossover Calculator
Crossover frequency, capacitor and inductor values for passive speaker design.
Open calculator →Subwoofer Box
Subwoofer enclosure planning for sealed and ported DIY builds.
Open calculator →Studio and System Setup Calculators
Match monitoring geometry, delay, loudness, amplifier power and practical system setup. These calculators are useful when room dimensions, speaker placement and equipment choices need to work together.
Monitor Triangle
Equilateral listening triangle setup.
Open calculator →LUFS Headroom
Streaming loudness targets and peak margin.
Open calculator →Sample Delay
ms, samples, and distance at sample rate.
Open calculator →MIDI / Frequency
Note number and Hz conversion.
Open calculator →Amp / Speaker Match
Check amplifier power, speaker impedance and estimated SPL for a safe system match.
Open calculator →Cable Capacitance
HF roll-off from cable capacitance.
Open calculator →Audio System Configurator
Guided speaker, amplifier, and DAC buying recommendations.
Open calculator →How to use these audio calculators
Start with the category that matches your task: room acoustics for treatment and room modes, PA / live sound for delay and coverage, speaker building for enclosure and crossover design, and studio / system tools for monitoring, loudness and equipment matching.
The calculators are intended for planning and estimation. For final builds or professional installations, verify measurements, component tolerances and manufacturer data before cutting materials or configuring a system.