Initial commit: soothe2 RE workspace + roadmap

- Инфраструктура: RTTI-дампы (rtti_dsp/full.json), декомпиляции DSP-классов (decomp_*.txt),
  Ghidra-скрипты (Dump*.java, ImportRtti*.java, Diag.java), depthcurve/curve_fits LUT.
- Поведенческая модель sim_v5.py + sim.py (RMSE ~0.3dB), утилиты (measure, tt_sweep, patchparam,
  sweep, harness_*, verify_sim).
- summary.md + roadmap.md (контракт из manual M1-M12, топология пайплайна из OCR, фазы A-C).
- pipeline_ocr.txt: OCR диаграммы Appendix A (mid/side ручка, trim/mix/bypass порядок).

notch.py

@@ -0,0 +1,90 @@
+#!/usr/bin/env python3
+import sys, os, struct
+import numpy as np
+
+SR = 44100
+
+def read_wav(path):
+    d = open(path, 'rb').read()
+    i = 12
+    ch = bps = None
+    data_off = data_sz = None
+    while i + 8 <= len(d):
+        cid = d[i:i+4]; sz = struct.unpack('<I', d[i+4:i+8])[0]
+        if cid == b'fmt ':
+            ch = struct.unpack('<H', d[i+8:i+10])[0]
+            bps = struct.unpack('<H', d[i+16:i+18])[0]
+        if cid == b'data':
+            data_off = i + 8; data_sz = sz
+        i += 8 + sz + (sz & 1)
+    raw = d[data_off:data_off+data_sz]
+    if bps == 32:
+        a = np.frombuffer(raw, dtype='<f4')
+        return a.reshape(-1, ch)[:, 0], ch
+    if bps == 24:
+        b = np.frombuffer(raw, dtype=np.uint8).reshape(-1, ch*3)
+        v = b[:, 0] | (b[:,1].astype(np.int32) << 8) | (b[:,2].astype(np.int32) << 16)
+        v = (v ^ (1 << 23)) - (1 << 23)
+        return v / 8388608.0, ch
+    a = np.frombuffer(raw, dtype='<i2')
+    return a.reshape(-1, ch)[:, 0] / 32768.0, ch
+
+def load(path):
+    return read_wav(path)[0]
+
+def band_db(x, fl, fh, sr=SR):
+    # band-integrated power between fl..fh via Goertzel on windowed segments
+    n = len(x)
+    seg = 4096
+    hop = 2048
+    total = 0.0
+    frames = 0
+    for t in range(0, n-seg, hop):
+        fr = x[t:t+seg]
+        w = np.hanning(seg)
+        X = np.fft.rfft(fr*w)
+        frq = np.fft.rfftfreq(seg, 1/sr)
+        m = (frq >= fl) & (frq <= fh)
+        total += float(np.sum(np.abs(X[m])**2))
+        frames += 1
+    if frames == 0: return -300.0
+    return 10*np.log10(total/frames + 1e-30)
+
+def main():
+    # probe band around the carrier at flexible freqs
+    center = float(sys.argv[1])
+    outs = sys.argv[2:]
+    half_w = float(os.environ.get('PROBE_BW', 800.0))
+    widths = []
+    step = float(os.environ.get('PROBE_STEP', 25.0))
+    f = center - half_w
+    while f <= center + half_w:
+        widths.append(f)
+        f += step
+    datas = {p: load(p) for p in outs}
+    colw = 11
+    print(f"{'freq':>6}" + ''.join(f" {os.path.basename(p)[:colw]:>{colw}}" for p in outs))
+    prevbase = None
+    for fl in widths:
+        fh = fl + step
+        row = f"{fl + step/2:6.0f}"
+        base = None
+        for p in outs:
+            d = band_db(datas[p], fl, fh)
+            if base is None: base = d
+            row += f" {d:>{colw}.1f}"
+        print(row)
+    # also print relative-to-first file per bin is tricky; print a second table relative to first col
+    print("--- relative dB to first file ---")
+    for fl in widths:
+        fh = fl + step
+        row = f"{fl + step/2:6.0f}"
+        first = None
+        for p in outs:
+            d = band_db(datas[p], fl, fh)
+            if first is None: first = d
+            row += f" {d - first:>+{colw}.1f}"
+        print(row)
+
+if __name__ == '__main__':
+    main()