micromate/idf_file.py

@@ -438,6 +438,10 @@ def read_idf_file(
         peak_tran = max((iv.peak_ips("Tran") for iv in intervals), default=0.0)
         peak_vert = max((iv.peak_ips("Vert") for iv in intervals), default=0.0)
         peak_long = max((iv.peak_ips("Long") for iv in intervals), default=0.0)
+        # Mic peak in psi — Thor stores per-interval mic ADC counts in the
+        # binary; convert the max count to psi via the per-count factor.
+        mic_peak_count = max((iv.peak_count("MicL") for iv in intervals), default=0)
+        mic_peak_psi = mic_count_to_psi(mic_peak_count) if mic_peak_count else None
         rep = IdfReport(
             serial_number=md.serial,
             event_type="Full Histogram",
@@ -451,7 +455,8 @@ def read_idf_file(
             vertical_ips=peak_vert,
             longitudinal_ips=peak_long,
             peak_vector_sum_ips=None,
-            mic_pspl_dbl=None,
+            mic_pspl_dbl=None,         # IDFH binary doesn't carry the dB(L) value
+            mic_pspl_psi=mic_peak_psi,
         )
         event = IdfEvent(
             serial=md.serial or "UNKNOWN",
@@ -489,6 +494,11 @@ def read_idf_file(
         arr = decoded.get(ch, [])
         return geo_count_to_ips(max((abs(v) for v in arr), default=0))
 
+    # Mic peak psi from binary: max absolute MicL ADC count × 2.14e-6 psi/count.
+    mic_arr = decoded.get("MicL", [])
+    mic_peak_count = max((abs(v) for v in mic_arr), default=0)
+    mic_peak_psi = mic_count_to_psi(mic_peak_count) if mic_peak_count else None
+
     peaks = IdfPeaks(
         transverse_ips=_peak_ips("Tran"),
         vertical_ips=_peak_ips("Vert"),
@@ -496,7 +506,9 @@ def read_idf_file(
         # PVS requires aligned per-sample √(T²+V²+L²); leave None — the
         # sidecar carries it and the bridge picks it up if present.
         peak_vector_sum_ips=None,
-        mic_pspl_dbl=None,
+        mic_pspl_dbl=None,             # binary IDFW doesn't carry the dB(L) value;
+                                       # sidecar .txt fills it via IdfReport.from_dict
+        mic_pspl_psi=mic_peak_psi,
     )
 
     event = IdfEvent(

micromate/models.py

@@ -159,12 +159,23 @@ class IdfReport:
 
 @dataclass
 class IdfPeaks:
-    """Geophone + mic peak values for one Thor event.  Native Thor units."""
+    """Geophone + mic peak values for one Thor event.  Native Thor units.
+
+    Thor stores the mic peak in two parallel forms — ``mic_pspl_dbl`` is
+    what the sidecar's top-level ``MicPSPL`` header field carries (dB(L)),
+    used in the report header.  ``mic_pspl_psi`` is the psi value derived
+    either from the IDFW sample table / IDFH interval column 9, or from
+    the binary mic counts (~2.14e-6 psi/count).  Needed because the
+    BW-shaped ``PeakValues.micl`` consumed by ``event_hdf5.write_event_hdf5``
+    expects psi — feeding it dB(L) makes the h5 mic-chart scale factor
+    blow up.
+    """
     transverse_ips:    Optional[float] = None    # in/s
     vertical_ips:      Optional[float] = None    # in/s
     longitudinal_ips:  Optional[float] = None    # in/s
     peak_vector_sum_ips: Optional[float] = None  # in/s
     mic_pspl_dbl:      Optional[float] = None    # dB(L)
+    mic_pspl_psi:      Optional[float] = None    # psi
 
 
 @dataclass
@@ -324,10 +335,14 @@ class IdfEvent:
         machinery without those code paths needing to know about Thor.
 
         Caveats of the bridge:
-          - ``mic_ppv`` on the produced Event carries Thor's dB(L) value
-            verbatim — the UI distinguishes via the ``device_family``
-            column (Phase 1).  Don't run the BW psi→dBL converter on
-            Series IV rows.
+          - ``PeakValues.micl`` carries the mic peak in **psi** (matching
+            BW's convention) — set from :attr:`IdfPeaks.mic_pspl_psi`,
+            with a dB(L)→psi fallback when only the dB(L) value is
+            available.  This is what the h5 writer's mic-scale-factor
+            logic needs.  The dB(L) value still flows through
+            ``bw_report.mic.pspl_dbl`` (set by the
+            ``idf_to_bw_report`` adapter) and the renderer reads it
+            from there for the report header.
           - Many Thor-specific fields (Peak Acceleration / Displacement,
             sensor self-check, calibration) don't have a slot in
             ``Event``.  The full IdfReport is preserved on the
@@ -349,11 +364,17 @@ class IdfEvent:
             minute=self.timestamp.minute,
             second=self.timestamp.second,
         )
+        # Resolve mic peak as psi.  Priority: binary-derived mic_pspl_psi
+        # (set by read_idf_file) > dB(L)→psi fallback via standard formula
+        # (psi = 2.9e-9 × 10^(dBL/20)) > None.
+        mic_psi = self.peaks.mic_pspl_psi
+        if mic_psi is None and self.peaks.mic_pspl_dbl is not None:
+            mic_psi = 2.9e-9 * (10.0 ** (self.peaks.mic_pspl_dbl / 20.0))
         pv = PeakValues(
             tran=self.peaks.transverse_ips,
             vert=self.peaks.vertical_ips,
             long=self.peaks.longitudinal_ips,
-            micl=self.peaks.mic_pspl_dbl,   # dB(L) — see caveat above
+            micl=mic_psi,   # psi, matching BW's convention (h5 scaling depends on this)
             peak_vector_sum=self.peaks.peak_vector_sum_ips,
         )
         pi = ProjectInfo(

sfm/waveform_store.py

@@ -568,6 +568,16 @@ class WaveformStore:
         # precedence over the filename timestamp inside from_report().
         idf_event = IdfEvent.from_report(report_dict, source_path.name)
 
+        # The binary mic peak (psi) isn't carried through from_report() —
+        # IdfReport.from_dict only sees the .txt's dB(L) value.  Pull the
+        # binary-derived ``mic_pspl_psi`` onto the typed IdfEvent so the
+        # downstream bridge can populate ``PeakValues.micl`` (psi-shaped)
+        # and the h5 writer's per-count mic factor lands at a sensible
+        # value.  Without this, the h5 mic chart auto-scales against the
+        # dB(L) value-as-pseudo-psi and renders ~flat.
+        if binary_peaks is not None and binary_peaks.mic_pspl_psi is not None:
+            idf_event.peaks.mic_pspl_psi = binary_peaks.mic_pspl_psi
+
         # Operator-supplied serial_hint wins over the binary's filename
         # prefix when both are present (e.g. callers passing a known-good
         # serial that overrides a misnamed export).