PAcalculate

4.4
656 reviews
50K+
Downloads
Content rating
Everyone
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About this app

Over 42 calculations for pro-audio sound reinforcement and lighting, as well as reference info and utilities. A super handy tool for people dealing with PA, sound reinforcement, sound systems, electroacoustics, pro-audio and lighting

The app is very light (~1MB, like a typical mobile phone photo), works offline and uses no data bandwidth

More than 42 calculations spread across 26 calculators:
- SPL (sound pressure level). Enter sensitivity in dB SPL, power, number of loudspeakers, phase and distance
- SPL sum
- Air absorption attenuation for a given humidity, temperature, frequency and distance
- Ceiling speaker coverage
- Time «» Distance
- Audio frequency «» Wavelength (includes lambda/2 and 2*lambda/3 for line arrays or subwoofer arrays)
- Line Array transition distance (near field to far field)
- In-line (end-fire, gradient) array simulation with left/right mirroring
- Broadside (line) subwoofer array modelling with electronic or mechanical arcing and steering as well as end-fire/gradient(cardioid) lines
- dBu «» dBV «» Volts
- Q «» B/W (bandwidth)
- Limiter threshold (and times)
- Amplifier gain
- Speaker cable: low impedance, high impedance (constant voltage line, 70V/100V). Calculates energy and level loss, system damping factor
- Electrical and musical calculators that are related to audio. Unit conversion
- Lights: DMX channel, RGB/RGBW/RGBA and CMY
- Reference info:
Pinouts, proaudio (XLR, 1/4", 1/8", SpeakOn, DB25) and lighting (XLR3, XLR5) and graphs (Fletcher&Munson, microphone polar plots)
- Utilities (inclinometer, flashlight-needs camera permission that can be later revoked in phone settings)

iOS (iPhone/iPad) version also available
Updated on
Mar 8, 2022

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
Learn more about how developers declare collection
4.4
656 reviews
Deepak D'souza
March 17, 2022
Exceptional tool for every day PA use. Lot of effort has been put into this and it shows.
2 people found this review helpful
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Doctor ProAudio
March 17, 2022
Thanks Deepak. There is a huge amount of work and attention to detail in PAcalculate, so I'm glad that comes through
Zxap Games
April 10, 2021
Awful, it is super laggy and has ads every 5 seconds
4 people found this review helpful
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Doctor ProAudio
April 12, 2021
PAcalculate has no ads. ¿What is the deal here? Are you commenting about another app or is this some trick to down grade the app?
Fredy Salim
February 3, 2022
Very usefull tools. Thank you
2 people found this review helpful
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What's new

1.3.2
- Broadside (line) array modelling with electronic or mechanical arcing and steering as well as end-fire/gradient(cardioid) lines
- Array modelling is now more insightful: provides a L/R mirror image option and 3 new graphics (isobar, coverage map and multi-angle freq. responses) as well as a horizontal mode that packs more information on the screen
- Easier introduction of values below 1 in Q «» BW
- Fixed main menu link to news and education
- Additional support for larger system fonts