Preserves in-progress work that had been sitting uncommitted in the working
tree (predates this session) so it is protected in git history. This is NOT a
verified/shipped fix — it is parked. Audio path is unverified on hardware and
still carries debug instrumentation.
- src/audio.cpp: drop the 512->480 resampler and retime the 0x36 frame to a
true 10ms/100Hz grid (SAMPLE_SIZE 64->60, 480-sample buffer) to chase the
~45kHz-vs-48kHz speaker underrun theory behind the crackle; dynamic speaker
sub-report offset; debug printf + Opus-frame-dump instrumentation.
- src/config.cpp: default audio_buffer_length 64->16; auto_haptics_enable
default 1 (Fallback) -> 0 (Off).
- src/oled.cpp: chunked non-blocking SPI flush (issue #7 OLED-stall angle) and
a battery-% midpoint display tweak.
- scripts/: audio debug helpers (opus-dump decode, pi audio test, sine ch1/2).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
