xFermaTube v1.0.1: more accurate auto sync

Improved sync accuracy. Auto mode should now lock on to the right delay more precisely, and re-sync faster when it drifts.

What changed:

• Fine-tuning uses the median of the last 5 measurements instead of 1–2. A single mic measurement is noisy (±20–30 ms). Differences are now corrected from 12 ms (was 30 ms).
• A big jump (> 60 ms, e.g. after a stall) needs two clear measurements in a row that agree. A wrong peak (rhythmic music) no longer throws the sync off.
• Your manual correction is learned from the median, not from one measurement.
• Measures every 60 s (was 90 s), so drift is caught sooner.
• In the car, the audio entry is now called xF Audio with its own speaker icon, so it is no longer confused with the video app.
• Tap the ⏱ label to see the last measurements (e.g. 🎤 352/318/345). If you report a problem, please include them.

Install the same way as v1.0 (it updates over it and keeps your settings). Debug-signed, arm64 only. The driver must not watch video while driving.

xFermaTube v1.0

First public release.

• YouTube-only Android Auto player (FermataX fork, ~19 MB)
• Video is delayed to match Android Auto's lagging audio
• Automatic delay measurement with the phone microphone (Auto mode), learns your manual correction
• Separate delay for USB and wireless Android Auto
• Car side rail: Home, History, Back, Refresh, Settings
• Open source, no ads, analytics or tracking

Install: sideload with AAenabler or KingInstaller, enable Unknown sources in Android Auto developer settings, and grant the Microphone permission on the phone. See the README.

Debug-signed, arm64 only. The driver must not watch video while driving.