demo.git - Vide-coded 64k demo system

Age	Commit message (Collapse)	Author
36 hours	fix(audio): fix early timing drift in tracker, use ola_decode_frame in synth	skal
	- Replaced chunk_frames truncation accumulation with accurate double-precision integration in audio_render_ahead. - Updated tracker to use double-precision time representations for exact sample-accurate scheduling. - Extracted ola_decode_frame to handle per-frame OLA-IDCT synthesis in synth.cc. - Updated TODO.md for completed audio tasks. handoff(Claude): Audio timing drift and OLA-IDCT enhancement resolved.
2026-03-05	fix(audio): correct OLA synthesis and extract shared ola_encode/ola_decode	skal
	- Remove erroneous Hann synthesis window from synth.cc (g_hann * tmp[j]). Hann analysis at 50% overlap satisfies w[n]+w[n+H]=1, so rectangular synthesis gives perfect reconstruction; applying Hann twice was wrong. - Extract ola_encode()/ola_decode()/ola_num_frames() into src/audio/ola.h+cc. spectool and test_wav_roundtrip now use the shared functions. synth.cc lazy-decode path stays inlined (see TODO for future refactor). - Drop dead <atomic> include and g_hann array from synth.cc. - Drop dead window.h include from spectool.cc. - Update PROJECT_CONTEXT.md, COMPLETED.md, TODO.md to reflect correct analysis-only Hann window and new ola.h API. handoff(Gemini): OLA synthesis bug fixed + ola.h factorized. synth.cc lazy-decode still inline (TODO item added). 34/35 tests pass; WavDumpBackendTest failure is pre-existing and unrelated. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>