Tools for analyzing the vibrational characteristics of violins
This is a modular browser-based toolkit for measuring Violin response. Everything runs locally in your browser — no uploads, no server. You need to use Chrome or Edge to access the folder picker and local file saving features.
🔍 Tools — v1.1.7 (stable)
Load, compare, and interpret multiple FRF files. Overlaid plots with smoothing, normalization, band and group averaging, coherence overlays, and per-dataset convolution playback. Print a labeled plot or ask Claude a question, right from the toolbar.
Tool · PyScriptLoad an FRF CSV or TRF and convolve it with any WAV file. Full complex frequency-domain convolution with min-phase or zero-phase reconstruction. Play and save the result.
Tool · PyScriptImpact-hammer FRF acquisition with auto-accept, calibration factors, multi-position templates, an on-screen Agenda checklist, and session notes with camera capture. Settings and templates saved to your Data Folder.
Tool · PyScriptStand-alone real-time hammer/mic monitor and live FRF estimate — the same LiveView as Acquire's "LiveView" button, in its own tab so it can run on a second monitor. Also reachable from inside Acquire.
Tool · PyScript🧬 Beta — v1.1.7 (testing)
New: hovering a dataset now shows that instrument's saved notes right in the sidebar. Also fixed the normalization dropdown not always starting on "As measured" on reload.
BetaNow also collects modal data: configurable response label (acceleration, velocity, displacement) and stencil-driven node positions for roving-hammer modal surveys.
BetaVisualisation and animation of mode shapes from an Acquire modal dataset. Data acquisition has moved to Acquire; Modal Analysis now focuses on loading, inspecting, and animating completed surveys.
BetaDesign and calibrate node layouts for projector-assisted hammer testing. Drag nodes to position, adjust the projection transform to fit your violin, and save stencils that automatically set positions in Acquire.
BetaStand-alone real-time hammer/mic monitor and live FRF estimate — the same LiveView as Acquire's "LiveView" button, in its own tab so it can run on a second monitor. Also reachable from inside Acquire.
Beta📚 References
How to use Explore, Convolve, and Acquire. Quick-start guide, controls reference, and links to the full technical PDF.
GuideLog of fixes and features, per version.
LogBrowse the full source code on GitHub.
GitHub🧪 Experimental
Browse your Data Folder, select FRF / AvC / AvR files, and download
a .mat file ready to open in MATLAB. Complex FRF data is
preserved for AvC files.
Browse your Data Folder for .wav files. View hammer and
microphone time-domain signals, trigger markers, and the computed FRF
for any recorded capture.
Documentation for experimental tools: Export to MATLAB and WAV Viewer.
ExperimentalThree options: web UI via local server with browser caching (once online, then offline forever); fully air-gapped web UI via a one-time asset download script; or native desktop Python tools with no browser at all.
ExperimentalBuild a custom ObieApp tool using Claude Code. A starter prompt gives Claude the project rules, Python modules, and conventions needed to write a complete new tool.
Experimental