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Bringing the Same Audio Experience to a Second Runtime

2025.06.13Technical Log#android-shell#sound-engine#playback

Established Android playback parity with iOS while resolving ownership errors in the spatial reverb effect chain that had caused pipeline failures since build time.

The objective was to reproduce, on a second runtime, the same playback experience already operating on the first. This phase focused on building Android support from scratch — establishing the foundational layer for the mini player, reels playback, lock screen controls, and Now Playing remote control, ensuring each touchpoint behaves identically across both runtimes.

A separate issue was identified in the audio pipeline. The native code responsible for the spatial reverb effect chain had incorrect resource ownership and deallocation ordering, causing failures at the build stage. Correcting the ownership structure restored proper sequencing across audio session initialization, track loading, video transitions, and loop playback.

Platform expansion is not a feature port — it is the process of establishing the same behavioral contract on a new foundation. The success criterion for this phase is playback quality on the second runtime that is equivalent to the first.