<p>TickTock is an open-source Android app that helps set the beat of a pendulum clock.</p> <p><strong>KEY FEATURES:</strong></p> <ul> <li>Real-time beat tracking from microphone audio</li> <li>Period measurement in milliseconds</li> <li>Asymmetry measurement in milliseconds and percent</li> <li>Gauge visualization from -25% to +25%</li> <li>Color-coded asymmetry indicator for quick feedback</li> <li>Start/Stop acquisition with live status text</li> <li>Live <code>G:</code> indication of the automatic gain-control multiplier; the value freezes after fit lock</li> <li>Beat-log export with 0.1 ms precision</li> </ul> <p><strong>USAGE:</strong></p> <ol> <li>Set the initial guess period (default 1200 ms)</li> <li>Tap Start and grant microphone permission</li> <li>Wait while TickTock locks to the beat</li> <li>Read Period, Asymmetry [ms], and Asymmetry [%]</li> </ol> <p><strong>OPEN SOURCE:</strong></p> <p>Licensed under GNU GPL v3.0 or later.<br> Source code: <a href="https://github.com/leodp/TickTock">https://github.com/leodp/TickTock</a></p>