Verdict: SonaVyx and SATlive both provide dual-channel FFT analysis for live sound. SonaVyx offers a broader feature set (RT60, STI, AI diagnostics, mobile) accessible from any browser for free. SATlive offers a proven, affordable (\u20ac30) Windows desktop experience popular among European system technicians. Choose based on whether you value browser accessibility or Windows desktop stability.
SATlive is a well-established dual-channel FFT analyzer from Germany, popular among European system technicians for its affordability and reliable real-time performance. SonaVyx takes a different approach as a browser-based platform with AI-powered diagnostics. This comparison helps you decide which tool fits your measurement workflow.
| Feature | SonaVyx | SATlive |
|---|---|---|
| Price | Free / $29/mo Pro | €30 one-time |
| Platform | Browser (any device) | Windows only |
| Mobile Support | ✓ | ✗ |
| Transfer Function | ✓ (H1 estimator) | ✓ |
| RTA | ✓ | ✓ |
| SPL Meter | ✓ (IEC 61672) | ✓ |
| RT60 Measurement | ✓ (ISO 3382) | ✗ |
| STI (Speech) | ✓ (IEC 60268-16) | ✗ |
| AI Diagnostics | ✓ | ✗ |
| Delay Finder | ✓ | ✓ |
| Multi-Trace Overlay | ✓ (10 traces) | ✓ |
| Equipment Scan | ✓ (camera AI) | ✗ |
| Problem Detection | ✓ (7 detectors) | ✗ |
| Reports | ✓ (3 templates) | ✗ |
| No Install Required | ✓ | ✗ |
SonaVyx provides a significantly broader feature set than SATlive. Beyond dual-channel transfer function analysis, SonaVyx includes RT60 measurement per ISO 3382, STI speech intelligibility testing per IEC 60268-16, AI-powered diagnostics that interpret measurement data, camera-based equipment scanning, and professional report generation with three templates.
The browser-based architecture means SonaVyx works on any device including smartphones and tablets. Multi-device WebSocket measurement enables two-phone transfer function analysis without an audio interface. All DSP processing runs client-side via Rust WebAssembly, delivering near-native performance. The free tier includes all core measurement tools.
SATlive has earned its reputation among European system technicians through years of reliable service. The Windows desktop application provides consistent, low-latency real-time transfer function measurement that takes full advantage of ASIO audio interfaces. SATlive\u2019s multi-trace overlay system is well-designed for comparing measurements across speaker positions.
At \u20ac30, SATlive offers remarkable value for budget-conscious engineers who only need dual-channel FFT analysis on Windows. The delay finder is straightforward and reliable. SATlive\u2019s focused feature set means a shorter learning curve for engineers who want to measure transfer function without the complexity of a full measurement suite.
Choose SonaVyx if: you want measurement tools on any device including mobile, need RT60 and STI alongside transfer function, value AI diagnostics that interpret your results, or want a free platform with no Windows requirement.
Choose SATlive if: you work exclusively on Windows, prefer a lightweight focused dual-FFT tool, want a proven desktop application for \u20ac30, or your workflow is strictly real-time transfer function measurement without room acoustics needs.
Try It Now
Try SonaVyx \u2014 dual-channel FFT, RT60, STI, and AI diagnostics in your browser. Free, no installation.