Android preview · 0.3.0 (3)

Record sound and vibration. Check equipment and environments.

Capture equipment rattles, unusual vibration and environmental noise with your phone. Keep the conditions, compare tests before and after a change, and export a PDF report.

Open sample PDF Support

Conceptual product illustration

Preparing for Google Play with a planned US$4.99 one-time purchase. This Android preview has not been submitted for review; a public download date has not been announced. Local prices and availability will follow the Google Play listing.

From the first unusual sound to a clearer handover.

Capture the moment

Choose a sound or vibration session, set a countdown and mark the moments that need a closer look.

See what changed

Review time curves and frequency spectra. Compare recordings made under consistent placement and operating conditions.

Keep the whole inspection

Bring notes, selected photos, videos and related measurements into a repair record. Export reports and chosen evidence for handover.

Read a report from a real Android phone.

Captured on a HUAWEI SEA-AL10 using its microphone and motion sensors: 30.10 seconds, 3,008 motion samples at approximately 100 Hz and 700 audio metric frames. Explore capture quality, axis statistics, Welch spectra, angular motion and sound metrics in an English report exported by FieldTrace.

Open the English PDF Download English PDF

Sampling rate, jitter, gaps and timing evidence
Axis statistics, Welch spectra and joint events
Angular motion, relative orientation and placement evidence
A/B/C/Z/468, F/S/I and sound bands
Measurement-chain profile, interpretation gates and fingerprint

Earlier emulator capture example · Full analysis example (synthetic signal)

Real phone capture, with test metadata translated into English. Sensor samples and timestamps are unchanged; the source and translated fingerprints are documented in the PDF. No raw recording is included. Sound levels are uncalibrated dBFS, not environmental dB SPL. The sound source and mounting were not independently verified; this is not an accuracy certificate or a fault diagnosis.

Acceleration: time and events · page 5 / 18

Acceleration: frequency analysis · page 6 / 18

Audio: relative energy and bands · page 9 / 18

Inside the Android app

Actual Android emulator screens, shown in Simplified Chinese. Demonstration and test records are not real-world measurements.

A field notebook with a signal inside.

Sound analysis with frequency weighting, time weighting and optional original WAV recording
Vibration records with RMS, crest factor and impact candidates
Threshold and motion-trigger workflows, countdowns and repeat capture
Reference calibration profiles and frequency-correction CSV import
Search, tags, comparisons, PDF reports, CSV and JSON exports
Repair phases, linked tests and frozen delivery versions

Privacy

Your recordings and analysis stay on your phone. No account, ads or cloud sync. You choose what to export, share or send to support.

Android privacy policy

Before you start

Can it tell me what is broken?

It helps you document a change and compare tests. Event candidates and spectra need human review; they do not identify a failed component automatically.

Can I use it without an account or network?

Yes. Capture, analysis and local review work on device. Opening support or choosing a sharing destination is a separate action.

Will it record an event that already happened?

Start a session before reproducing the issue. Triggered recording uses only its configured short pre-trigger buffer; it cannot recover earlier events.

Can I exchange every iOS record?

Android supports its own JSON and backup workflows. iOS FTRACE01 and repair-delivery formats are not fully interchangeable in this preview.

Important to know

Phone microphones and motion sensors vary. Uncalibrated sound levels are dBFS, not environmental dB SPL. Calibration applies only to its validated input chain. Results support documentation and investigation, not fault diagnosis or safety certification.