ProShouters was founded on a simple premise: professional audio calculations and conversions shouldn't require expensive specialized software or complex spreadsheets. Every audio engineer, venue operator, event organizer, and sound enthusiast deserves access to accurate, reliable calculation tools that work instantly in any browser on any device.
Our Mission
The audio industry has long relied on nomographs, slide rules, and specialized calculators for basic acoustic and electrical calculations. While software exists for complex system modeling, the everyday calculations that audio professionals need — decibels to watts, speaker impedance networks, reverberation time estimates, cable resistance — often require either manual calculation or expensive proprietary tools.
ProShouters addresses this gap with a comprehensive suite of free online tools covering the full spectrum of audio engineering calculations. From the most basic decibel conversions to complex acoustics modeling, our tools are built by audio professionals who understand what engineers actually need in the field. Every tool undergoes rigorous verification against established formulas and real-world test cases.
We believe in the value of understanding the underlying mathematics, which is why each tool includes explanations of the formulas and principles involved. Our articles provide in-depth context for the calculations, helping users develop intuition for acoustic and electrical relationships rather than just producing numbers.
What We Offer
Our collection spans forty-two specialized tools across several categories:
Acoustic Measurement — SPL meters, sound level calculations, room acoustics estimators, reverberation time calculators, and octave band frequency tools. These help venue operators ensure hearing safety compliance and optimize acoustic environments.
Electrical & Electronics — Impedance calculators, power amplifiers, speaker power handling, cable resistance, dBm/dBW/dBV conversions. These bridge the gap between electrical theory and practical audio application.
Signal Processing — FFT spectrum analysis, THD calculators, delay and latency estimators, audio byte calculators, and bitrate converters. These help engineers understand digital audio signal chains.
System Design — Speaker crossover calculators, frequency-wavelength tools, megaphone range estimators, and coverage planners. These support the initial design and deployment of sound systems.
Reference Generation — Tone generators, pink noise generators, and spectrum simulators for system alignment and testing.
Accuracy Commitment
Every calculation on ProShouters uses formulas verified against established acoustic and electrical engineering references. We maintain detailed documentation of the calculation methods and assumptions behind each tool, so users can verify the mathematics independently if desired.
We continuously test and refine our tools based on user feedback. If you encounter unexpected results or identify calculation errors, we welcome detailed feedback that helps us improve our tools. The goal is reliability that audio professionals can trust for mission-critical applications.
Contact Us
For inquiries about our tools, suggestions for new calculations, partnership opportunities, or technical questions, please visit our contact page. We respond to all reasonable inquiries within 48 hours.
ProShouters is independently operated and is not affiliated with any audio equipment manufacturer. Our recommendations and calculations are based purely on engineering principles and documented performance characteristics.