Smaart-style dual-channel FFT analysis for every SonaVyx tool
SonaVyx tools work in two modes: Guided Mode for quick, accessible measurements with AI-explained results, and Expert Mode for professional engineers who need full control, raw data, and Smaart-level analysis depth. Expert Mode does not replace any tool — it enhances every tool with additional panels, trace memory, cursor readouts, and advanced metrics that professionals expect.
Every measurement page includes a mode toggle in the header. Switch between Guided and Expert at any time without losing your measurement data.
Expert Mode transforms the Transfer Function tool into a full Smaart-style dual-channel FFT analyser. Overlay the current live trace against up to 8 stored reference traces to compare EQ adjustments, verify system alignment, or track changes over time. The cursor readout provides instant numeric values at any frequency, eliminating guesswork when reading plots.
The guided SPL Meter shows a single Leq number and basic statistics. Expert Mode adds a full statistical time chart with L10, L50, and L90 percentile traces overlaid on the time history, 100 ms logging resolution for detailed analysis of transient events, and NC/NR curve violation highlighting so you can instantly see which octave bands exceed your target criteria.
Expert Mode adds the Schroeder backward-integrated decay curve for each octave band, letting you visually inspect the decay and manually adjust the regression range for T20 or T30 calculation. ISO 3382-1 target overlays show how your measured RT60 compares against published targets for concert halls, classrooms, lecture theatres, and other room types.
The guided STI tool gives you a single STI number with a pass/fail rating. Expert Mode reveals the complete 7x14 Modulation Transfer Function matrix, showing the modulation transfer index for every combination of octave band (125 Hz to 8 kHz) and modulation frequency (0.63 Hz to 12.5 Hz). Per-band contribution charts help pinpoint whether poor intelligibility is caused by excessive reverberation, high background noise, or both.
In guided mode, the Problem Detector collapses inactive panels and shows a simplified radar chart. Expert Mode expands all detector panels simultaneously, adds a real-time THD+N measurement with individual harmonic level display, overlays detected comb filter nulls on the transfer function plot, and maintains a session-long history of feedback frequency events for post-event analysis.
Expert Mode includes a built-in 12-band parametric equaliser editor that overlays directly on the transfer function plot. Each band is represented by a draggable handle on the frequency response curve: drag vertically to adjust gain, horizontally to shift centre frequency, and scroll to change Q factor. The combined EQ response is displayed as a separate trace so you can see the predicted result before applying settings to your DSP processor.
12-band parametric EQ with drag handles — adjust frequency, gain, and Q directly on the plot
Peak/Dip, High Shelf, Low Shelf, High Pass, Low Pass, Notch, All Pass. Each band independently configurable.
Export EQ settings as biquad coefficients, QSC Q-SYS presets, Biamp Tesira presets, or generic parametric values for any processor.
The combined EQ response updates in real-time as you drag handles, overlaid on the measured transfer function trace.
In Guided Mode, SonaVyx AI provides automated analysis and recommendations. When you switch to Expert Mode and override an AI suggestion — adjusting an EQ band the AI missed, changing a target RT60, or reclassifying a detected problem — SonaVyx records your correction. Over time, the AI learns your preferences and professional judgement, improving its guided-mode recommendations for your specific use cases, room types, and workflow patterns.
Guided Mode analyses your measurement and recommends EQ adjustments, identifies problems, and rates acoustic quality.
In Expert Mode, you refine the AI suggestions based on your professional experience, venue knowledge, and client requirements.
Your corrections feed back into the AI model, making future guided-mode recommendations more aligned with your workflow.
Expert Mode is included with SonaVyx Pro. All guided-mode tools remain free forever.
View Pro Plan PricingFor decades, professional audio system engineers have relied on dedicated measurement platforms like Rational Acoustics Smaart, Systune by AFMG, or Meyer Sound SIM to perform dual-channel FFT analysis during system alignment and commissioning. These tools require dedicated hardware interfaces, specific operating systems, and significant investment in both software licenses and training. SonaVyx Expert Mode brings the same analytical depth to any device with a modern web browser, running the DSP engine entirely in Rust-compiled WebAssembly for native-speed performance without installation.
The core of any professional measurement platform is the transfer function: the frequency-domain ratio of the system output to the input, H(f) = Y(f) / X(f). SonaVyx computes this using the H1 estimator with Welch's method for spectral averaging, providing magnitude response, phase response, coherence, and group delay. Expert Mode adds dual-trace overlay so you can compare the current live measurement against a stored reference, instantly visualising the effect of any EQ adjustment, driver realignment, or processing change. With 8 trace memory slots, you can build up a complete picture of system behaviour across different configurations without losing any previous measurement.
Professional engineers need precise numeric values at specific frequencies, not just visual impressions from a plot. Expert Mode provides a crosshair cursor that follows the mouse position on any plot, displaying the exact frequency, magnitude (dB), phase (degrees), coherence, and group delay (ms) at the cursor location. Combined with trace memory, this allows rapid A/B comparison: store a trace before adjustment, make the change, and read the exact dB difference at any frequency of interest. This workflow is identical to how engineers use Smaart trace overlay during live system tuning.
The integrated 12-band parametric equaliser editor lets you design EQ curves directly on the transfer function plot. Each band is a draggable handle: vertical movement controls gain, horizontal movement shifts the centre frequency, and mouse scroll adjusts the Q factor. The combined EQ response is computed in real-time using biquad filter mathematics and displayed as an overlay trace, showing the predicted post-EQ response before you apply any settings. Export the final EQ configuration as biquad coefficients for any DSP platform, or as manufacturer-specific presets for QSC Q-SYS, Biamp Tesira, and other common processors.
Expert Mode RT60 analysis goes beyond a single reverberation time number. The Schroeder backward-integrated decay curve is displayed for each octave band, letting you visually inspect the decay shape, identify non-exponential decay (double slopes from coupled spaces), and manually adjust the evaluation range for T20 or T30 regression. ISO 3382-1 target overlays let you compare measured RT60 against published targets for your room type. For speech intelligibility, Expert Mode reveals the full 7x14 Modulation Transfer Function matrix, showing exactly which octave-band and modulation-frequency combinations are degrading STI, and provides STI prediction from RT60 and background noise measurements without requiring a full STIPA test signal.
Traditional measurement platforms require a laptop running Windows or macOS, a USB audio interface with at least two inputs, and proprietary software that costs $500 to $2,000 per license. SonaVyx Expert Mode runs on any device with a modern browser and a microphone, including tablets and phones for quick field checks. The entire DSP engine is compiled from Rust to WebAssembly, achieving execution speeds within 10% of native code while running sandboxed in the browser with zero installation. This means every technician on a crew can run measurements independently, without sharing a single measurement laptop, and results are immediately available for cloud sync and collaborative review.
Expert Mode provides the same core analysis capabilities as Smaart for transfer function measurement: dual-channel FFT, H1 estimator, coherence, phase, group delay, trace memory, and cursor readout. For standard system alignment workflows — verifying coverage, aligning delays, and EQ tuning — Expert Mode is a fully capable alternative. For specialised Smaart features like multi-input switching matrices or hardware-specific integrations, dedicated platforms may still be preferred.
Expert Mode works with any microphone accessible through the browser, including built-in laptop microphones, USB measurement microphones (UMIK-1, iMM-6), and professional audio interfaces (RME, Focusrite, MOTU). For calibrated transfer function measurements, a measurement microphone with a known sensitivity and frequency response calibration file provides the best accuracy. The Rust WASM DSP engine processes all audio at 48 kHz regardless of the input device.
The parametric EQ editor exports filter settings in multiple formats: raw biquad coefficients (a0, a1, a2, b0, b1, b2), generic parametric values (frequency, gain, Q), and manufacturer-specific presets for QSC Q-SYS, Biamp Tesira, and Symetrix DSP platforms. Copy-paste the exported values directly into your processor configuration software.
You can toggle between modes at any time without losing measurement data. The toggle switch is located in the header of every measurement page. Your current measurement session, stored traces, and all settings are preserved when switching. Many engineers use Guided Mode for initial setup and then switch to Expert Mode for fine-tuning.
No. The AI override learning system is per-account and private. Your corrections train a personal preference model that only affects your own guided-mode recommendations. SonaVyx never shares individual measurement data, override patterns, or preference models between accounts. All measurement processing happens client-side in WebAssembly; only session metadata and your override feedback are stored server-side.