Matiq/soothe2-re
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e39c97e014fbaecf1271498d81660abf738a45ad
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8 Commits
Author SHA1 Message Date
Matiq e39c97e014 chain LOG#1/2 140980 logf, keep TOTAL 0.341 2026-08-29 17:30:18 +03:00
Matiq a7e1a661bd divide 1803a06a0 proxy + expf bit-exact, keep TOTAL 0.341 chain 2026-08-29 17:28:03 +03:00
Matiq 85317ed674 A: expf fmaf 180296c80 + rt_div_tables vpermps dump 2026-08-29 16:12:03 +03:00
Matiq d025fa5a23 cascade 1c: chain_9_19 skeleton DIVIDE/FMA/EXP proxy, ready for vpermps/poly 2026-08-29 15:31:59 +03:00
Matiq 3411e9b42e fix: Haar [0.25,0.5,0.25] exact + cascade w=0.015, VLAW sens keep, second-peak check 
- fn529fe0: Haar one-pass now exact 3-tap [0.25,0.5,0.25] via tmp copy (was in-place two-loop shortcut not bit-exact per BLOCKMAP 24mm14)
- cascade w scalar 0.015 best-fit (rms 0.30) vs per-bin 0.084 (Haar error), not ctx-derived 1.33
- framed_model: VLAW sens 12 keep (dual group), remove debug fprintf and spurious RT_FIRCONV power on raw_level
- test fix: restored dual_b1q_0.5.wav 1ch16->2ch24 (hazard rendersnap2), corpus TOTAL 1.594 again
 2026-08-29 03:44:39 +03:00
Matiq b4d75f4d22 Version 1.0: VLAW parameterization + detector cascade 
- Implemented exact ln/exp2 infrastructure (log2_ln.hpp/cpp)
- Parameterized VLAW α/β/c by (fc, q, sens) configuration
- Implemented real RFFT for FIR construction
- Fixed VLAW parameterization for dual group (3.455 → 0.764 dB)
- Added detector cascade 529c60 (Haar smoothing, magnitude, peak processing)
- TOTAL error: 0.870 dB (vs bridge baseline 1.594 dB)

Results:
- t1kq: 0.618 dB (bridge: 0.226 dB)
- t1k: 0.938 dB (bridge: 1.801 dB) ✓ better
- al: 0.727 dB (bridge: 0.638 dB)
- res: 0.284 dB (bridge: 0.628 dB) ✓ better
- dual: 0.764 dB (bridge: 0.726 dB)
- comb: 3.000 dB (bridge: 10.149 dB) ✓ better
 2026-08-27 20:49:35 +03:00
Matiq a1632a9fce fix: persistent IIR state eliminates ×1.805/×2.44 gaps 
Root cause: IIR accumulator reset to 0 every frame, losing temporal state.
Fix: static thread_local accumulator persists across frames.

Results (dual_b1q_0.5, reaper render):
  cut@500 = -10.32 dB (EXACT match, was -14.35)
  cut@2000 = -11.82 dB (EXACT match, was -6.58)

Both the ×1.805 (OLA normalization) and ×2.44 (mask computation) gaps
were caused by the same root issue: IIR state reset.
 2026-08-24 14:31:55 +03:00
Matiq 7bf5a4a80c feat(dsp): structural FUN_180529fe0 chain components + fn529fe0_check (step 1, module 1) 2026-08-21 01:09:36 +03:00