Switching from REW to SonaVyx

REW to SonaVyx Feature Mapping

REW Feature	SonaVyx Equivalent	Notes
Sweep Measurement	Measure → Transfer Function	Log sine sweep with deconvolution
RTA	Measure → RTA mode	1/1 to 1/24 octave smoothing
SPL Meter	Measure → SPL mode	A/C/Z weighting, Leq, statistics
Impulse Response	Measure → IR mode	Sweep and MLS generation
Waterfall Plot	Spectrograph toggle	Time-frequency scrolling display
RT60	Tools → RT60	T20, T30, EDT per ISO 3382
Room Modes	Tools → Room Scan	Axial mode calculation from dimensions
EQ Optimization	AI Diagnostic (Pro)	AI suggests EQ, no auto-optimizer
Signal Generator	Built into measurement	Pink noise, sweep, MLS, STIPA
Export TXT	Export FRD / CSV / JSON	FRD compatible with REW import
Group Delay	Phase display (unwrapped)	Visible in TF mode
Multi-Sub Optimizer	Not available	Use REW for this specific task

What You Gain

Moving to SonaVyx for day-to-day measurement gives you several capabilities REW lacks. Zero installation means you measure from any device anywhere — open a browser and you are ready. AI diagnostics translate measurements into actionable recommendations instead of requiring manual interpretation. STI measurement per IEC 60268-16 is built in, covering speech intelligibility assessment that REW does not offer. The problem detection engine automatically identifies feedback, hum, polarity issues, and comb filtering from your measurements. Cloud venue management tracks measurement history across sites. Guided workflows walk beginners through common measurement tasks step by step.

What You Lose

Be honest about what SonaVyx does not replace. REW parametric EQ optimizer generates correction filters that export directly to miniDSP, Dirac, and other hardware — SonaVyx AI suggests EQ changes but does not generate exportable filter coefficients. REW 3D waterfall plot provides better modal decay visualization than SonaVyx spectrograph. Multi-subwoofer optimization is a REW specialty with no SonaVyx equivalent. If these features are central to your workflow, keep REW for those specific tasks.

The Practical Migration Path

Most REW users do not need to fully switch. Instead, adopt SonaVyx for quick on-site measurements, walk-around analysis, and AI-guided diagnostics. Continue using REW for detailed room correction EQ optimization at your desktop. Export FRD files from SonaVyx to import into REW for further analysis. This hybrid workflow gives you the best of both tools. Over time, as SonaVyx adds features, you may find yourself using REW less frequently, but there is no urgency to abandon a tool that works well for specific tasks.

Data Compatibility

SonaVyx exports FRD (frequency response data) files that REW can import directly. This means you can measure with SonaVyx in the field, export FRD, and analyze in REW at your desk. JSON export includes full session metadata for archival. CSV export provides raw data compatible with any spreadsheet or analysis tool. WAV export preserves impulse responses at 48kHz/24-bit for use in any audio tool.

Try SonaVyx alongside REW — both are free