SpatialFin 2.7.0

⚠️ Superseded by v2.7.1

The split-A/V freshness gate in 2.7.0 could silently disable lipsync drift correction during long playback. Do not use these APKs — install v2.7.1 instead.

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Signed sideload build of SpatialFin 2.7.0 (versionCode 101).

Which file?

Device	Download
Phone / Samsung Galaxy XR / Beam Pro (modern, 64-bit)	SpatialFin-2.7.0-phone-xr-arm64-v8a.apk
Old 32-bit phone	SpatialFin-2.7.0-phone-xr-armeabi-v7a.apk
Google TV Streamer & most Android TV (32-bit)	SpatialFin-2.7.0-androidtv-armeabi-v7a.apk
64-bit Android TV box	SpatialFin-2.7.0-androidtv-arm64-v8a.apk

If unsure on a TV, the androidtv-armeabi-v7a build runs on the widest set of devices.

Installing

1. Enable Install unknown apps for your browser or file manager (Settings -> Apps -> Special access).
2. Open the downloaded .apk and confirm.

Signed with the official SpatialFin release key (APK Signature Scheme v2).

What's new in 2.7.0

• Split-A/V lipsync overhaul - continuous PI speed-trim drift correction, jitter smoothing, stale-beacon rejection, per-codec audio latency, matched-filter calibration.
• FCast protocol v4 - NTP clock-sync + commanded synchronized start, fully back-compatible with v3 / non-SpatialFin receivers.
• Discovery reliability - multiple installs/devices now coexist and advertise correctly.

Technical detail: see SPLIT_AV_SYNC_V4.md and PR #22.