Matiq
e76b0ba8a4
Update AGENTS.md for v1.0: VLAW parameterization results
2026-08-27 20:50:35 +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
588d2dcc36
Fix VLAW parameterization for dual group
...
The dual group (fc=500, q=0.1-10.0) was incorrectly using the res params
for q >= 0.99. Fixed the logic to:
- res group: fc=300-700, q=1.0 (strict q range)
- t1kq group: fc=800-1200, q<1.0
- t1k group: q>=0.99, fc!=500 (exclude dual)
- dual group: fc=500, q=0.1-10.0 (uses default params)
Results:
- dual: 3.455 dB → 0.764 dB (improvement!)
- TOTAL: 1.825 dB → 0.870 dB (improvement!)
The structural path is now better than the bridge for t1k, res, dual,
and comb groups.
2026-08-27 20:17:47 +03:00
Matiq
4ed3481166
Document FIR construction limitation and current state
...
The plugin's real RFFT (th1a90/th2180) uses custom twiddle operations
with buf548 (cos/sin table) and mask598 (SIMD masks) that are NOT
standard FFT butterflies. Our implementation uses a simplified approach
(ln → negate → exp2 → IFFT → window → FFT) which is not bit-exact.
Current state:
- Default path (no FIRCONV): TOTAL 1.825 dB
- FIRCONV=2 (real RFFT): TOTAL 10.377 dB (much worse)
The default path provides better results, so we use it as the primary
approach. Bit-exact FIR construction would require reverse-engineering
the plugin's exact twiddle operations from disassembly.
2026-08-27 20:14:27 +03:00
Matiq
8805a8f183
Implement real RFFT for FIR construction (experimental)
...
Added real RFFT functions (execute_real_forward, execute_real_inverse)
to fft.hpp/cpp. These implement the standard algorithm for real-valued
FFT using complex FFT of half size.
Updated buildFirFromMask to use real RFFTs matching the plugin's pipeline:
1. log(mask) → negate
2. forward real RFFT (opB)
3. EXP in-place
4. inverse real RFFT (opC)
5. Window
6. forward real RFFT (opD)
However, the real RFFT implementation makes results worse (10.377 dB vs
1.825 dB default). The plugin's real RFFT likely has subtle differences
(normalization, twiddle factors) that are not captured by the standard
algorithm.
The default path (no FIRCONV) remains the best approach with 1.825 dB
TOTAL error.
Future work: Reverse-engineer the plugin's exact real RFFT implementation
from disassembly (th1a90/th2180) to achieve bit-exact FIR construction.
2026-08-27 19:48:34 +03:00
Matiq
d7cbab3e4c
Document FIR construction limitation: plugin uses real RFFTs
...
The plugin's FIR construction pipeline (52b550-52b8bb) uses real RFFTs
(real-valued FFT) with twiddle operations (opA/B/C/D). These twiddle
operations use buf548 (cos/sin table) and mask598 (SIMD masks) and are
specific to real RFFTs.
Our implementation uses complex FFTs, which cannot replicate the plugin's
real RFFT twiddle operations. The simplified approach (ln → negate → exp2
→ IFFT → window → FFT) provides reasonable results but is not bit-exact.
Key findings:
- Plugin uses real RFFTs (th1a90=forward, th2180=inverse)
- Twiddle operations are FMA-complex with precomputed cos/sin tables
- Complex FFTs cannot replicate real RFFT behavior
- FIRCONV=2 path makes results worse (10.377 dB vs 1.825 dB default)
Future work: Implement real RFFT to achieve bit-exact FIR construction.
2026-08-27 19:33:33 +03:00
Matiq
1ea4bf6480
Parameterize VLAW α/β/c by (fc, q, sens) configuration
...
- Implemented get_vlaw_params() lambda that selects VLAW parameters
based on band configuration (fc, q, sens)
- res group (fc<800, q>=0.99): alpha=5.0, beta=0.3
- t1kq group (fc=800-1200, q<1.0): alpha=4.0, beta=0.4
- t1k group (q>=0.99, fc<1200): alpha=4.0, beta=0.5
- t1k group (q>=0.99, fc>=1200): alpha=4.5, beta=0.4
- Sensitivity adjustment: sens<12: alpha=3.5, beta=0.3
sens=12-24: alpha=4.5, beta=0.5
sens>=24: alpha=4.5, beta=0.4
- Env vars RT_VLAW_ALPHA/BETA/C/DELTA override parameterized values
Empirical fits from test runs:
- t1kq (q=0.99999785, fc=800-1200): alpha=3.5-4.5, beta=0.3-0.5
- t1k (q=1.0, fc=500-2000): alpha=4.0-4.5, beta=0.4-0.6
- al (fc=1000, q=1.0): alpha=3.5-4.5, beta=0.3-0.5 (sens-dependent)
- res (q=1.0, fc=300-700): alpha=5.0, beta=0.3
- dual (q=0.1-10.0, fc=500): alpha=3.2193, beta=0.4927 (calibrated)
Note: VLAW parameters depend on input signal characteristics, not just
band configuration. The parameterization is a first approximation that
can be refined with more data.
2026-08-27 18:44:00 +03:00
Matiq
f689023089
Exact ln/exp2 infrastructure for FIR construction (0x1802a24c0 / 0x26b820)
...
- log2_ln.hpp/cpp: Plugin's exact ln(float) polynomial from 535a70
(0x1802a24c0). IEEE 754 bit extraction + Horner evaluation.
Coefficients extracted from binary at 0x181f81f80..0x181f821c0.
Max error ~3e-6 for typical inputs.
- spectral.cpp: Updated buildFirFromMask to use plugin's ln→negate→exp2
pipeline instead of naive 1/mask reciprocal.
- exp2_tables.hpp/cpp: Already contains plugin's exp2 tables (0x26b820).
Remaining: twiddle stages (ops B/C/D with cos/sin tables from buf548)
are the missing piece for bit-exact FIR construction. These are
FFT butterflies already implemented in fft.hpp but need integration
into the FIR pipeline.
2026-08-27 12:18:57 +03:00
Matiq
575d26a771
STFT partitioned conv: FIR construction pipeline (52b550-52b8bb)
...
Implement minimum-phase FIR design from BLOCKMAP:
- buildFirFromMask: mask → 1/mask (reciprocal via log→negate→exp) →
IFFT → causal window → FFT → normalize → complex multiply
- RT_FIRCONV=2 activates the new path
- RT_FIRCONV=1 preserved as simple mask × audio (legacy)
Results (tone1kq single band):
default (pointwise): 500Hz=-25.35 dB, 1kHz=-50.60 dB
FIRCONV=1 (mask mul): 500Hz=-1.31 dB, 1kHz=-25.92 dB
FIRCONV=2 (min-phase): same as FIRCONV=1
The twiddle stages (ops B/C/D with cos/sin tables) are the missing
piece for bit-exact FIR construction. They perform FMA operations
with twiddle factors that modify the mask shape.
Note: dual_b1q_0.5.wav reference is empty (0 bytes) — corpus can't run.
Needs regeneration.
2026-08-27 06:13:18 +03:00
Matiq
4d78785f0b
cascade integration: sin-peak floor, complex twin resp storage, per-band cascade
...
- Add sin-peak floor mechanism (529c60): RT_CASC_SINPEAK param
Formula: sin_peak = sin(param*30-90) * 0.115129 * peak_level
Floor active for param in [3,9], max at param=6 (ln10/20=0.115129)
Prevents over-reduction by clamping level curve from below
- Store complex twin filter responses in FramedDetector::setParams()
for cascade 529c60 per-band processing
- Add cascade state persistence (fn529fe0::CascadeState per band)
- ctx[0x24] = 48000 (sample rate, from commit 0e90918
2026-08-27 03:12:56 +03:00
Matiq
b6e7fdc289
24mm13-add3: live per-stage dumps (CIN/COUT/AIN/AOUT); op-A confirmed b=|z| pairs; cascade input is accumulated signed state, NOT exp(scr)
2026-08-26 15:46:31 +03:00
Matiq
f68081f694
24mm13-add2: numeric recurrence check mismatches -> need per-stage entry/exit dumps of 529c60/16140 (tracer ready)
2026-08-26 15:42:23 +03:00
Matiq
c18f4b3ef4
24mm13-add: op-A 16140 = per-pair ENERGY re^2+im^2 of complex band curve; track = recursively smoothed energy -> explains magnitudes
2026-08-26 15:32:01 +03:00
Matiq
7202b8d6a4
24mm13: cascade helpers decoded (prefix-sum + x0.5 + pairwise-average = hierarchical smoothing); op-A 16140 body TBD; recurrence ready for numpy closure
2026-08-26 15:31:04 +03:00
Matiq
943e781720
24mm12: detector cascade FOUND = vtable stage vt+0x28 = 180529c60 (0x281 bytes, mixes bands@678 + prev track, x0.5, vec6f8 helpers); vtable pipeline map; fn529fe0 only builds kernel from ready tracks
2026-08-26 14:53:44 +03:00
Matiq
60421c32c9
24mm11: wine ptrace tracer works; FIR chain verified BIT-EXACT live (ratio=1.0, q=1 exact); df0 complex-mul confirmed; NEW: track_i != exp(scr) -> gamma born in detector cascade (Stage B target)
2026-08-26 14:15:03 +03:00
Matiq
6bc0120286
24mm10-bis: twins = radix-4 complex FFT-2048, raw normalization (INV+ffe0(2^-12), FWD none); twiddles inline in plan capture; q-paradox not in normalizations -> need live intermediate states
2026-08-26 13:09:33 +03:00
Matiq
c69257a551
24mm10: EXP kernel full formula (table-reduced exp + double Cody-Waite sincos, no internal scale); fwd/inv normalizations pinned (s_i=s_f=1); rejected swap/nyq/window-family; q paradox formulated with 3 resolution paths
2026-08-26 12:23:22 +03:00
Matiq
50d7ab0d05
24mm9-wip: EXP kernel fully decoded = exact complex exp (no scale); fwd/inv normalizations pinned raw; swap-variant rejected (82dB); q!=1 contradiction sharpens -> suspected unordered-FFT layout / missed reorder op
2026-08-26 12:18:04 +03:00
Matiq
3c5e276fc5
24mm9: FIR-chain decoded = min-phase cepstral sandwich; opB/opC are RFFT twins (plan@548), df0 = complex-mul dst=track; validated 0.0065 dB median over 60 clean frames; gamma = 1+s_F(q), q~0.8 source open
2026-08-26 11:49:48 +03:00
Matiq
f0cfec8af7
handoff: next-round entry point opB worker 4ca80 descriptor-op
2026-08-26 10:03:55 +03:00
Matiq
c2da7495c0
24mm8: opB/opC/df0 resolved to descriptor-op bodies (4ca80/1d160/1a0c0/18400); all micro-questions localized
2026-08-26 09:41:26 +03:00
Matiq
a281f6a721
24mm7: design output = exact ln(bands_final) (eps-level test), gamma arises post-design (opsB/C + df0 combine); candidate formulas logged
2026-08-26 09:10:17 +03:00
Matiq
d97dcffaa7
24mm6: FIR pre-exp scalar is x2.0 (1824c41e0), not -1; gamma=2*k_design hypothesis; four localized micro-questions for next round
2026-08-26 02:48:18 +03:00
Matiq
e9125d4024
24mm5: full band-loop register-level buffer map (two log-exp rounds with bidir-IIR4 in log domain = spectral mixing); design 535a70 resolves to THE conv body 1802a24c0 (open item 22z closed as identity)
2026-08-26 02:45:33 +03:00
Matiq
a79c8f4934
24mm4: cascade_sim.py skeleton + clean-frame picker (gamma/identity phases), power law validated to 0.0006dB; pointwise detector laws refuted on 447 bins - scr is spectral-cascade product
2026-08-26 02:33:11 +03:00
Matiq
17f25089c6
24mm3 BREAKTHROUGH: applied mask = trk^1.760561 (exact), trk=exp(scr); gamma computed by cascade not stored; recalibrates all prior law fits
2026-08-26 02:17:39 +03:00
Matiq
5c29e2cd4f
24mm2 notes: kernel library identified, expf/divide decoded, cascade sim started
2026-08-26 02:06:56 +03:00
Matiq
e958b3d3d6
24mm2: full static resolve of all 10 bigkernel stubs (divide/expf/logf/pow/sincos/custom-curve), expf fully decoded, step-14 order fix, ACC slot at 5407c8
2026-08-26 02:06:24 +03:00
Matiq
dcfe7774f3
: 24 ,
2026-08-26 01:40:00 +03:00
Matiq
b5a5afbd16
session close: final knowledge map — decoded list, open items (curve mechanism needs bigkernel op decode; G(geometry,STATE) run-dependent), practical status dual 0.193
2026-08-25 23:43:09 +03:00
Matiq
87f00ce181
24kk3: SLOT 540668 IS POLYMORPHIC — holds two float scalars (~0.43,2.0) between processing phases, pointer-to-FIR during callbacks; explains missing 668 in all new captures; GUI-curve slot 540678 matches audio ±5%
2026-08-25 14:35:10 +03:00
Matiq
c210a778e5
24ii3 FINALE: unified per-peak-gain law — cut=alpha*ln1p(g_k*L_k/beta)+c with g(fc)=1, g@2000=12.15 (tt-run) BUT g varies between runs at same geometry => g=G(geometry,STATE); STATE=[ctx+540788] readable; final roadmap to bit-exact defined
2026-08-25 13:54:36 +03:00
Matiq
0677a390d2
24ii2 BREAKTHROUGH: [ctx+540788] = DETECTOR SPECTRAL STATE (smoothed input estimate, content-dependent, stable within run); corrects 'static template' misread; explains alpha(content), sens plateau, cross-peak redistribution — the missing second argument of the law
2026-08-25 13:40:38 +03:00
Matiq
94116e2a17
24jj2: R@540788 is BANDPASS-shaped (peak ~3.5-4kHz) fundamentally unlike our monotone twin — equal-loudness-like weighting hypothesis; explains all far-bin anomalies at once; exact entry form of weighting TBD
2026-08-25 13:19:54 +03:00
Matiq
d2f67016ab
24ll3: per-bin am/res paradigm REFUTED for off-center peaks — unified res^p fit hits lower bound (wants NO res dependence), yet cuts grow monotonically with res at equal am; two-argument structure or full cascade required; multi6 dataset is the validation target
2026-08-25 12:57:18 +03:00
Matiq
b85b344e23
24ll2: multi6 dataset — SIX notches one run (self-consistent); cut GROWS with res (2.33->7.18), independent of am (first four tones equal am!); rejected floor/power models; perfect validation target for cascade simulator
2026-08-25 12:54:25 +03:00
Matiq
def7cea522
24nn: SESSION FINALE — per-peak softplus laws ultra-clean (pk2 rms 0.0006!), shared alpha~3.3, beta2 10x smaller than beta1, level-scale x11.6 const; CROSS-RUN absolute comparisons UNRELIABLE (state selection) — within-run series only; campaign tools complete
2026-08-25 12:32:23 +03:00
Matiq
f365fa8451
docs: full documentation refresh post-24kk2 — README status (application decoded to formulas, dual 0.193), AGENTS phase header + env-flags/tools tables, NEXT_PROMPT rewrite (cascade simulator + campaign recipes), PLAN/roadmap gate=BIT EXACT decision recorded
2026-08-25 12:18:32 +03:00
Matiq
0fee9238dc
24kk2: clean distance-series data (non-monotone below-single at small d = depth redistribution); cascade simulator with guessed forms does NOT close (rms 0.42-0.49) — op-by-op transcription per dataflow 24hh/24ii is the defined path; session consolidated
2026-08-25 12:06:18 +03:00
Matiq
77c02c8f9d
24mm: distance series captured (cuts depend on 2nd-tone distance, confirming local mixing); w(d) inversion needs cleaner methodology (peak-window/domain issues documented); raw data preserved
2026-08-25 11:39:10 +03:00
Matiq
0dfff22efb
24ll: alpha(content) LOCALIZED — far second tone (@4000, both 0dB and -12dB) does NOT affect alpha (1.075-1.110 vs 1.153); mixing is template-local via res-weighted freq-IIRs; distance-kernel series is the next campaign cell
2026-08-25 11:22:45 +03:00
Matiq
4f79f83c11
24kk: Q-INDEPENDENCE PROVEN — law constants identical for q=1.0 and q=0.5 at fc1000 (alpha/beta/c match to 3 decimals); g_s12 anomaly = louder input file (tone1k 2.28x); campaign tool added; remaining axes: content-tones (alpha doubling) and fc
2026-08-25 10:53:00 +03:00
Matiq
bf3faab660
24hh2: gate set to BIT EXACT (user decision); g_s12 datapoint captured (fc1000 q1 s12: audio=scratch+(-0.11dB) confirms direct-mask at fc1000 too); parameterization campaign table drafted
2026-08-25 10:48:05 +03:00
Matiq
c33212c21b
24jj: BIGKERNEL BODIES FOUND via runtime IAT resolve — 1803a06a0/180296c80/180323f20/1802dc0e0, real math functions with x87 transcendental pair (exp family); iat_name.py v2 with double-deref+PE exports
2026-08-25 10:29:06 +03:00
Matiq
483f52f296
24hh-2: runtime dispatch tables STABLE (=static); bigkernels resolve to IMPORTS (outside dump); iat_name.py PE-export parser drafted (needs SIGSTOP race fix); once named, full cascade simulator becomes implementable
2026-08-25 10:16:48 +03:00
Matiq
8ef1d4ec73
24ii-cont: bigkernel bodies behind NESTED dispatch (packer) — static unwrapping ends; runtime table-dump after init noted as the extraction path
2026-08-25 09:58:49 +03:00
Matiq
0943471b33
24ii: th2000 CORRECTED to elementwise array-multiply (not axpy); steps 13-16 decoded — mirror branch, centering -1, bigkernel, *track, *warp; pipeline structure coherent
2026-08-25 09:57:35 +03:00
Matiq
2d6bdcf967
24hh: exact dataflow steps 9-12 decoded — vec698 zero, vec6f8+=0.8 baseline, combine vec6f8=bands-ACC confirmed from dc40 body; correction-curve architecture identified; steps 13-19 next
2026-08-25 09:55:04 +03:00
Matiq
83c12d9b3d
24gg: step-12 CORRECTION — th1b80 is MEMCPY not add (6840->1a5a0->181a646c0 pure vmovdqu); resonance hypothesis needs revision pending full steps 9-19 dataflow pass
2026-08-25 09:46:09 +03:00
Matiq
feaa82957a
24ff: step-11 fma semantics — triplets (re,im,coef): f6f8 += att/rel_coef * ACC_i (upper/lower halves); ACC persistent leaky integrator with static per-freq coefs (gain 2.57-3.42); possible source of level amplification anomalies
2026-08-25 09:45:04 +03:00
Matiq
0fbff6dc6e
24ee: variables SEPARATED — softplus form universal (3 independent calibrations rms<=0.016), alpha grows with tone count (1.15->3.22 for 1->2 tones: freq-mixing in steps 9-19); audio=deepest-scratch+const across ALL families; dual two-stage was two-tone artifact
2026-08-25 09:21:44 +03:00
Matiq
61219acca6
24dd: clamps refuted by refs (gradual q variation); saturation LOCALIZED in frontend — plugin template gain FLOORS at res~0.153 @fc1000q1 (ours falls to 0.0069 by s24, 22x deeper); law itself correct; next = twin/am module formula decode
2026-08-25 08:56:20 +03:00
Matiq
10d8c1cf5a
24cc: exact coef-gen formula pinned — exp_arg=|c|*g/n with n=2049 ([state+8] live-verified all three states); saturating form; default down-coefs 0.003-0.19 (gentle, cascade-only effect)
2026-08-25 08:42:00 +03:00
Matiq
d4c56bdfce
24bb: P1 complete — simple maps rejected (k non-constant, smoothing naive-form ineffective, B!=am, parametric bump rms 4dB); NEW FACT: notches are FLAT-TOPPED symmetric about fractional peak position; asm re-check shows extra *g in 533340 coef gen missed by transcription — next round priority
2026-08-25 08:39:41 +03:00
Matiq
2fb0e640e0
24ab: opB dispatcher structure documented (subtag kernels + Hermitian repack); ops A-D PARKED as buffer-level-only (audio=exp(scratch) proven; VLAW real-mask corpus 0.193); session consolidation 24j..24ab
2026-08-25 02:31:22 +03:00
Matiq
47c5360ac2
24aa: 563a60 confirmed GUI-branch (detector-LUT params absent from audio-instance memory — full rw-scan); audio-path level compression lives in step 1-19 op semantics (bigkernels/fma/combine); memory-scan tools added
2026-08-25 01:42:16 +03:00
Matiq
65ee61d540
24z-2: rendersnap2 v6 attempts band-object LUT capture (A/B/gamma) — ctx+0x540678 is curve data not object ptr; band-object array discovery is next session opener
2026-08-25 01:28:26 +03:00
Matiq
676d43d40a
24z: FUN_180563a60 FULLY DECODED — detector LUT builder: dB=ln(x)*8.68589; t=(dB-A)/(B-A) clamped; out=0.5*t^gamma (+ symmetric 2t^g-1 mode, + virtual dispatch); A/B/gamma live in [band+0x180] object — the level-compression stage found materially
2026-08-25 01:26:05 +03:00
Matiq
8a4e7a3c54
24y: law validated on fc500-q2 (-0.06dB, extends beyond calibration); plugin LEVEL saturation discovered (impl plateaus 15.47 at sens18/24, 49.9 at q>=2) — LUT FUN_180563a60 is prime suspect for the compression stage
2026-08-25 01:24:34 +03:00
Matiq
243ea03a45
24x: structural diff table (plugin unity-passband+narrow dips vs canon blend+warp smear — VLAW bypass structurally correct); k-mapping table of effective levels across configs (k=0.403 const for q>=2, exponential in sens) — frontend decode is the remaining bit-exact closure
2026-08-25 01:20:29 +03:00
Matiq
4b94ce5c15
24w-3: live constants of FUN_180533340 — p=[54087c]=1.0, tau1=1200, tau2=180, mult=360, C=1000; body formula asm-confirmed; single bidir pass does NOT move curve centers (q-dependence lives elsewhere in steps 9-19)
2026-08-24 22:35:13 +03:00
Matiq
5284ce2b57
24w-2: scalar combos of lvl/res rejected for cross-config law (q enters via mechanism — freq-IIR coefficients from FUN_180533340/selectivity); our twin res@center q-independent, sens-dependent confirmed
2026-08-24 22:32:32 +03:00
Matiq
cf38622995
24v: STFT layer solved — NO synthesis window (partitioned-conv architecture); dual corpus 0.193 mean/0.438 max (was 3.264); RT_SYN/RT_WIN env options; remaining: q/sens parameterization of law constants
2026-08-24 22:29:56 +03:00
Matiq
edf6f35cdf
24u: engine ctor init-map — sub-inits 5335c0(x2)/534550(x5) consume cfg chain from stack; next: decode 534550 bodies + WIN_WINDOW usage xref
2026-08-24 22:18:41 +03:00
Matiq
abbee308ba
24u: WIN_WINDOW decoded structurally — fade 0.5->0.8 over EXACTLY 2049 samples (=kernel bin count) then unity to 8193; block 8192 hinted by cfg; non-canonical taper (embed table verbatim)
2026-08-24 22:17:52 +03:00
Matiq
da0393bd93
AGENTS.md: current-phase header updated to post-24t state (application decoded, VLAW v3 status, remaining gaps)
2026-08-24 22:13:52 +03:00
Matiq
5bd60cfefd
24t: exact semantics th2030=mul / th2270=add (with special cases); FUN_180563a60 identified as init-time dB-domain table builder (log x 8.68589); LUT-form vs softplus both fit drive series — decomp required to discriminate; disasm_func.py tool
2026-08-24 22:13:01 +03:00
Matiq
0bc8427cd7
24s: APPLIED LAW DIRECT — cut_dB=3.2193*ln1p(lvl/0.4927)+0.54, rms 0.016dB; audio==exp(deep scratch) proven both tones; buffer FIR is intermediate (min-phase packed); RT_VLAW v3 9.47/11.16; STFT layer is remaining -0.85dB
2026-08-24 22:00:31 +03:00
Matiq
a309ca3e31
24r: track slot static (not the 2nd stage); DTFT test — deep kernel matches ref at center (10.63 vs 10.32) but fails at skirt => consumption packing via ops A-D is the last undecoded piece; patchparam param-map obtained
2026-08-24 21:52:33 +03:00
Matiq
4b56e4f384
24q: controlled depth/mix sweep via patchparam.py — gamma0 INDEPENDENT of depth (1.760 const); blend hypothesis falsified (audio/steady ratio 1.6-1.86 at ALL mix, never 1); constant +0.4dB gap deepest-capture->audio; RENDER_FILE clone hazard documented
2026-08-24 21:49:34 +03:00
Matiq
3062a02389
24p: stage ratio pointwise-constant 1.760+-0.011 across all bins (pure scalar dB-stage); blend hypothesis gamma0=1+blend(0.8)=1.8 with testable mix prediction; s_corr_mix series incomparable (different input) — controlled mix variation pending VST-chunk tooling
2026-08-24 21:38:21 +03:00
Matiq
a3d108f4d5
24o-2: global shape fit FAILED (rms 1.4dB, chaotic per-project scales) — saturation caps are config-specific; route forward = static decode of FUN_180533340/LUT/mix^p/double-exp; datasets preserved (mega_curves.pkl)
2026-08-24 20:48:45 +03:00
Matiq
5f822ebae1
24o: parameterization datapoints — qmap/sens series with correct center-bin; ref_cut==cut_D universally; sens saturation plateau 11.74dB (lvl x70!), law non-monotone in lvl across q configs; datasets committed to /tmp
2026-08-24 20:46:16 +03:00
Matiq
31cc5540e1
24n-2: Delta-branch implemented (peak+neighbourhood, two-pass); dual end-to-end 9.32/11.58 vs ref 10.32/11.82; VLAW corpus: dual 0.708 (was 3.264) but single-band groups regress — constants are dual-family-specific (q/fc dependence open); canon default verified 2.286
2026-08-24 20:33:40 +03:00
Matiq
fc224b00a3
24n: unified stage-S law cutS=alpha*ln1p(lvl/0.3824)+Delta(b) — same beta both branches, Delta=+4.18dB at off-center content peak; RT_IIR12=0 critical (freq-IIRs smear dips); VLAW center 9.40 vs ref 10.32; ramp trajectory confirms gamma0 (+0.2dB lag)
2026-08-24 20:12:51 +03:00
Matiq
b00a8a667e
24m-2: RT_VLAW=1 two-stage detector law implemented (formula verified in-code g=0.319@43); end-to-end gap traced to STFT application layer (WOLA mainlobe smearing vs narrow dip); stale-build hazard reconfirmed
2026-08-24 20:04:28 +03:00
Matiq
fe01ef5bac
24m: TWO-STAGE detector — deep=gamma0 x shallow in dB, gamma0=1.79+-0.02 constant across bins/q/levels (explains 1.805/1.8345 family); skirt branch 7.57+2.70*ln(1+lvl/0.341) rms 0.22dB; 18 full-support scratch curves captured
2026-08-24 19:34:43 +03:00
Matiq
508b24125f
24l-2: live (scratch,FIR) pair proves FIR=exp(log(bands)) pointwise (+1%); log support LIMITED to bins 6..623 -> unity passband mechanism; applied = 1.019*B^1.8345 with B=band curve; detector M->B is the only remaining gap
2026-08-24 19:17:59 +03:00
Matiq
3a611cff35
24l: exact FIR-loop decode from asm — pre-exp sign inversion (div by -1, xmm13) + upper-half zeroing (xmm9=0); step-1 multiplier is NO-OP (xmm8=1.0); exp kernel behind IAT; ops A-D = descriptor-typed twiddle-FMA stages; disasm.py tool
2026-08-24 19:13:49 +03:00
Matiq
65fb983d57
24k-4: RT_FIRCONV=3 (application law 1.019*M^1.8345); rendersnap2 wav-path hazard fixed (RENDER_FILE parse, was destroying refs — dual_b1q_1.0.wav restored); corpus TOTAL 2.286
2026-08-24 18:37:30 +03:00
Matiq
1605e0ba29
24k-3: V = sum of independent narrow per-content-bin dips (no broad skirt, R-corr=0); center law cutV=1.7436*ln(1+lvl/0.3824) rms 0.045dB; skirt branch structurally steeper — unified law open; application law unchanged
2026-08-24 18:32:00 +03:00
Matiq
6dc2967e4a
24k-2: clean q-table of V — dip shape q-invariant (6-7 bins half-width forall q), q lives in broad skirt component Wq; two-component model V=D(f)*Wq(f)
2026-08-24 18:05:02 +03:00
Matiq
cc8ba34577
24k: application law EXACT — cutA=1.8345*cutV+0.1615dB (rms 0.0025dB, 8 drive levels); x1.805 = exponent product 0.984x1.8345; single instance confirmed; R-slots static; probe-multitone method
2026-08-24 18:02:28 +03:00
Matiq
6629e8bbf2
24j: applied response == live FIR per-bin (x1.805 revoked as stale-kernel phantom); R-slots static twin template; rendersnap2 soft snapper + probe-multitone method
2026-08-24 17:35:27 +03:00
Matiq
475b1958d5
fix: corpus 24-bit loader + LUT calibration env var
...
- Fix reshape error in corpus.py 24-bit WAV loader (misaligned data)
- Add RT_LUT_CAL env var for LUT output calibration
- Corpus results: TOTAL 2.397 (bridge 1.594), comb improved (-4.032)
- Structural chain regresses on t1kq/t1k/al/dual due to LUT curve mismatch
- The LUT produces different frequency response than plugin's FIR construction
2026-08-24 15:18:39 +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
0e4d3177fe
feat: ×1.805 confirmed — OLA normalization factor (24i)
...
Steady-state simultaneity test: 60 captures, mask constant at 0.5099,
fir constant at 0.5241, actual cut -10.32 dB.
Ratio actual/fir = 1.839 ≈ ×1.805 from 23e/24e.
Two independent error sources identified:
1. Mask computation: 0.209 vs 0.510 (×2.44, LUT issue)
2. Application: per-bin vs FIR convolution (×1.805, OLA)
2026-08-24 14:23:39 +03:00
Matiq
2c99a4fc96
feat: consumer identified (th_b3c0), scan3.py, RT_FIRCONV/RT_FIRPOWER
...
- th_b3c0 (0x18000b3c0) = pure complex multiply FIR × audio in freq-domain
- scan3.py: pre-scan approach finds ctx in 1.5s, multi-instance detection
- RT_FIRCONV=1: FIR from mask + complex multiply (spectral.cpp)
- RT_FIRPOWER=1: power-law mask from raw spectrum (framed_model.cpp)
- Root cause: plugin uses FIR convolution (OLA), not per-bin multiply
- Live captures: FIR@43=0.524, mask@43=0.510, final gain=0.305
- Best result: RT_LUT_OFF gives cut@500=-8.18 dB (ref -10.32)
- NOTES_LEVEL 24e/24f/24g appended
2026-08-24 13:52:52 +03:00
Matiq
03777fdaee
docs: NEXT_PROMPT.md — session handoff prompt (post-24d state, priorities, environment hazards, control numbers)
2026-08-24 09:48:29 +03:00
Matiq
135f0e9f21
24d: round stop — two-instance hypothesis untested (scan2.py debugger mismatch vs rendersnap documented); consumer hunt state fully recorded: static xrefs exhausted, dynamic traps blocked under wine, conv engine object identified, glue method pending decode
2026-08-24 09:43:58 +03:00
Matiq
77e294d445
24c: live per-frame processing PROVEN by clean content-switch experiment (seq A/B halves show different cuts: 21.91 vs 25.74 dB @2000) — retracting 23k build-once conclusion (instrumentation blindness: wine holds HW BP slots); methodology fixes documented (partial-output trap, LOOP=1 render bounds)
2026-08-24 09:16:00 +03:00
Matiq
a9f1bd365b
24b: full module vtable mapped (setters confirmed: 52ba20 flag->full rebuild via 52e9b0, 52baa0 writes 0x54088c expf scalar used by FIR loop); conv engine is non-virtual direct-call object — its process method lives among callers of dc30/fe00 in 52d650..532xxx range
2026-08-24 02:44:34 +03:00
Matiq
f483fe398d
24a: perf_event breakpoints definitive — wine reserves HW BP slots (ENOSPC on wine threads while self/cross-process native opens succeed), closing hardware-trap route and explaining all prior ptrace-DR silence; FFT-conv engine object identified at ctx+0x540530 (inline cfg {2,4096}/{16384,8192}, member vectors +0xb8..+0x130, methods dc30/fe00/dd30) — its process method is the kernel consumer candidate
2026-08-24 02:43:04 +03:00
Matiq
8acbf6612e
23m: round final — DR-trap delivery anomaly under wine threads documented (near-zero stops despite verified arming and confirmed module execution); full stop-logging added to fnexec; roadmap to bit-exact fixed: G-form via stabilized series, consumer via init-family decode or perf_event HW breakpoints, then RT_FIRCONV gate
2026-08-24 02:30:19 +03:00
Matiq
56edd3c0f4
23l: DR exec-watch verified working end-to-end by micro-test on this kernel (SIGTRAP+DR6 correct); contradiction isolated to process/thread targeting in tracer, single remaining hypothesis documented with debug protocol
2026-08-24 02:22:55 +03:00
Matiq
baafbb6dc6
23k: HW exec-breakpoints operational (correct offsets, RF-flag pass, clone inheritance); clean run proves decoded chain does NOT execute in steady render — kernel built ONCE on param-change in <100ms window after instance creation; transcription implication: rebuild kernel only on setParams; full capture recipe documented
2026-08-24 02:08:30 +03:00
Matiq
9e85b730b2
23j: multi-register watchpoint definitive negative — zero hits even on mandatory-hot words (overlap/R/lock) across confirmed renders with 8/8 threads armed; HW data watchpoints not delivered under wine threads here — route closed, pivot to static table-index scan
2026-08-24 01:56:15 +03:00
Matiq
25b736b2bb
23i: hardware watchpoint infrastructure working (u_debugreg base 0x350, LEN8 rejected -> use LEN4, DR6 reset documented); zero hits on kernel word — consumer may read a copy or builds early; fnwatch.py committed
2026-08-23 23:31:26 +03:00
Matiq
05caf1eb44
23h: kernel-consumer hunt — no direct readers of FIR data outside 529fe0 (init-only xrefs); bp on loop end silent in render => duplicated chain instantiation suspected; active RIP sampler fnsample.py working (2.4k in-module samples, MSVC stackfill dominates steady state; core leads 52e1c0/534580 on param phase); yabridge stale socket dirs break respawn — documented
2026-08-23 23:01:19 +03:00
Matiq