Current Sprint

Primary Goal

Freeze the DYY9 OE release candidate while continuing PPSM installer/service work.

Current Tasks

• Recapture OE-001 after final release-candidate cleanup.
• Continue PPSM phone provisioning usability and acceptance testing.
• Keep the Engineering Portal current after significant OE/SM sessions.

Recently Completed

• Deployed PagePoint Audio Standard V1: validated approved PCM WAV assets, added the reusable WAV validator, migrated stored playback to CHIME -> ZONE ID -> MESSAGE, preserved rollback, and verified four simultaneous zone messages.
• Prepared a cloned OE installation from the original production image on a 64 GB SD card. Captured image: C:\PagePoint\OE-MASTER-071926.img, SHA256 557E30001B2B1B250C23031BFB0D1EB578704D52AA2C6603EA8B036F6410C68E.
• Fixed PPSM health refresh so OE reachability/status is broadcast automatically on startup and on the polling interval; Diagnostics is no longer required to refresh the displayed OE state.
• Configured PPSM RTC and chrony as the site time authority. OE uses 192.168.50.2 as NTP server.
• Added phone provisioning time configuration and health validation: PagePoint NTP, automatic network time, fixed America/New_York timezone for DYY9.
• Mapped the DYY9 USB 7.1 audio outputs explicitly: A-H = 0,1,6,7,2,3,4,5.
• Removed synchronous duration probing from stored-message playback path. Startup duration cache reduced trigger latency from about 2.5 seconds to about 0.52 seconds before delay tuning.
• Changed only the manual stored-message startup delay from 500 ms to 300 ms. Four-zone stacked message test measured 312-342 ms trigger-to-pipeline latency.
• Fixed live-page priority scope. Zone live pages interrupt only the same zone; All Call live page remains globally dominant.
• Moved live mic into the single-output-owner mixer path. RoutedAudioMixer now owns the only active ALSA/aplay output for stored files, live chimes, and live PCM.
• Moved live-page chime to the normal RoutedAudioMixer file source path, correcting the glitchy receiver-pumped chime.
• Tuned live mic queueing to the accepted DYY9 state: live paging is reliable and responsive, with only limited brief glitches tolerated.
• Fixed first-tap live-page failure by gating phone microphone transmit on OE routeActive=true.
• Gated heavy live-page LIVE_TRACE logging behind PAGEPOINT_LIVE_TRACE=1 without changing accepted audio behavior.
• Deprecated missing relay/I2C and LPD6803 LED hardware from the DYY9 operational audio path. Logical software-only mode is the default.
• Reorganized PPOE Settings internally into focused sub-modals while preserving the original Settings entry and main-screen hierarchy.
• Revised PPSM phone provisioning layout for portrait-first installer use, with larger animation/demonstration area, larger text, retained NTP/time-zone status, and BACK/NEXT footer controls.

Known Issues / Release Notes

• The active OE contains post-image release-candidate fixes. Recapture the OE image before final media duplication.
• LIVE_TRACE logging is gated off by default. Re-enable only for focused live-page diagnosis.
• Small, brief audio clicks/pops are acceptable if live-page operation remains reliable and fast. Do not increase live-page latency only to make underrun logs prettier.
• Progress-bar timing is secondary and may still need correction later.
• Future page/message chime split will use message_chime.wav and page_chime.wav after client-approved files arrive.
• Future deployments outside DYY9/Northeast should make timezone a site configuration value rather than hard-coded America/New_York.
• FFmpeg remains an external runtime tool. Removing it is deferred as a contained audio-subsystem refactor.

Next Task

Continue PPSM work. For OE, preserve the current accepted audio behavior unless a release-blocking fault appears.