Tap-tone analysis for guitar builders and tonewood enthusiasts.
Guitar Tap captures the sound of a tap on a guitar, plate, or brace, runs a high-resolution FFT, and reports the resonant peaks and material properties that matter to luthiers. This page covers the most common questions; the full User Manual has detailed walkthroughs for every feature.
Guitar Tap needs the microphone to hear your tap. All audio is processed on your device; nothing is recorded for transmission or sent anywhere. If you declined access, enable it under Settings → Privacy & Security → Microphone (iOS) or System Settings → Privacy & Security → Microphone (macOS).
Press New Tap to arm the detector, then tap firmly. If taps are still missed, lower the Threshold slider. If background noise triggers false detections, raise it. A quiet room and a crisp, short tap give the best results.
The calculated moduli depend directly on the dimensions and mass you enter. Double-check length, width, thickness, and mass in Settings → Measurement Type → Material — the app shows the resulting density so you can catch a typo before tapping. Also confirm you are holding the sample at the correct node point (about 22% from one end) as described in the manual.
Measurements are saved locally on your device in the app's Documents storage.
You can export them as .guitartap files, spectrum images, or PDF
reports, and share them via AirDrop, the Files app, Mail, and more.
Yes. On Mac, use File → Play Audio File to run a WAV or audio file through the analyzer exactly as if it were a live tap.
Guitar Tap collects no personal data, has no accounts, and shows no ads. See the Privacy Policy for details.