Two issues spotted in the modal:
1. Mic dBL chart looked spikey/discontinuous — isolated bars at 80-95
with gaps in between. Cause: _psiToDbl() returns null for zero or
negative samples, and most mic samples on a quiet event sit at the
digitization noise floor where they're effectively zero. Result:
the chart only renders the moments when instantaneous SPL exceeded
the Y-axis bottom — looks like a sound trigger gate.
Fix: new _psiToDblForChart() rectifies the AC waveform (abs), then
converts to dBL, then floors at MIC_DBL_FLOOR=60 dBL. Chart now
has a continuous 60 dBL baseline with peaks above it — matches how
acoustic engineers expect SPL-vs-time. Y-axis bottom pinned to
MIC_DBL_FLOOR, top to peak + 5 dB headroom. Peak label still uses
the unrectified _psiToDbl so the displayed peak value is exact.
2. Filename in Source/Files block was unlinked. Endpoint exists
(/db/events/{id}/blastware_file) — just wasn't wired to the modal.
Made it a clickable download link. Same treatment for the
preserved .TXT — added "(download .TXT)" link next to source kind
when source.txt_filename is populated (events ingested after the
.TXT preservation feature landed; older events show no link).
Applied to both the inline modal in sfm_webapp.html and the
standalone /events page in event_browser.html.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
serversdown
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