SonaVyx

Acoustic measurement that
finally makes sense

Professional-grade RTA, transfer function, RT60, and SPL metering with AI diagnostics. In your browser. For free.

Join 500+ audio engineers on the waitlist

sonavyx.com/en/measure
RTA
Transfer Function
IR
SPL
AI
31.5631252505001k2k4k8k16k
Built onIEC 61672-1:2013ISO 3382-1/2IEC 60268-16ANSI S1.11

How SonaVyx compares

Same professional measurements. Browser-based. AI-enhanced. Fraction of the cost.

Feature
SonaVyx
Smaart v9
REW
Web-based (no install)
Real-time collaboration
AI-powered diagnostics
Mobile-friendly
Cloud data sync
IEC 61672 compliance
Free tier available
Price
Free / $29
$1,299
Free

SonaVyx vs Smaart vs REW: Which Acoustic Measurement Tool Is Right for You?

Choosing the right acoustic measurement software depends on your workflow, budget, and deployment environment. Smaart v9 by Rational Acoustics is the industry standard for live sound engineers, offering dual-channel transfer function measurement and real-time analysis — but at $1,299 per license with Windows/Mac only support. REW (Room EQ Wizard) is a powerful free tool popular in home theater and studio acoustics, but lacks real-time collaboration and requires desktop installation.

SonaVyx brings professional-grade measurement to the browser. Built on Rust WebAssembly for native-speed DSP processing, it implements the same algorithms (H1 transfer function estimator, Welch spectral averaging, IEC 61672 weighting filters) used by desktop tools. The key difference: zero installation, mobile support, and AI-powered diagnostics that provide actionable recommendations — not just data.

For live sound engineers who need quick measurements at load-in, SonaVyx eliminates the laptop setup time. For acoustic consultants running ISO 3382 RT60 measurements, the guided workflows ensure standard-compliant results. For venue operators monitoring SPL compliance, real-time metering with OSHA threshold alerts runs on any device with a browser.

All measurement tools are free with no account required. Pro features ($29/month) add Claude AI diagnostics, watermark-free reports, cloud venue history, and priority support. Whether you are switching from Smaart, supplementing REW, or starting fresh, SonaVyx provides the measurement capabilities you need — instantly.

Reduced venue measurement time from 3 hours to 45 minutes. The AI diagnostic caught a phase issue I would have missed.

Sound Engineer

Live Events

Finally a measurement tool I can pull up on my phone during soundcheck. No more lugging a laptop to every gig.

FOH Engineer

Touring

The RT60 workflow with ISO 3382 compliance saved us weeks on our building certification project.

Acoustic Consultant

Architecture

Local audio processing
HTTPS encrypted
GDPR compliant

Frequently asked questions

Is SonaVyx really free?
Yes. All measurement tools (RTA, transfer function, SPL meter, impulse response, problem detection) are completely free with no limits. Pro adds AI diagnostics, clean reports, and cloud venue history for $29/month.
How accurate is browser-based measurement compared to Smaart?
SonaVyx uses the same DSP algorithms (Welch's method, H1 estimator, IEC 61672 weighting filters) compiled to WebAssembly from Rust. With a calibrated microphone, results are comparable to desktop software.
Does SonaVyx work on mobile phones?
Yes. SonaVyx runs in any modern browser including Chrome and Safari on iOS and Android. The MEMS microphones on modern phones provide usable measurements with calibration.
Is my audio data sent to a server?
No. All audio processing happens locally in your browser using WebAssembly. Your audio never leaves your device. AI diagnostics send only frequency response data (not raw audio) when you explicitly request analysis.
Can I use SonaVyx as an alternative to Smaart or REW?
Yes. SonaVyx provides real-time analysis, transfer function measurement, impulse response capture, and SPL metering — the core workflows of Smaart and REW — directly in your browser with no installation.

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