`AudioLevelMeter` measured one number for everything. It now also keeps smoothed per-channel
levels with the same attack/decay, plus `ImbalanceDb`. Mono samples report both sides equal (a mono
source is centred), so the two never disagree about whether audio exists.
The dock shows ONE ladder per source — two ladders per bay was visual noise for a rare failure —
but this creator is profoundly deaf on the right, so the one case that matters is "the sound is
panned away from me". That is now measurable and will drive a flag, not a second ladder.
Semantics that mattered: a silent side is compared at the −60 dBFS floor, so a fully one-sided
signal reads ≈54 dB rather than "nothing to compare". My first version returned 0 for exactly the
case the feature exists for; the test caught it.
Guard: StereoMeterTests — hard left, hard right (the inaudible case), balanced stereo, mono
centred, and silence-is-not-an-imbalance. 31 audio tests green.
Issue 3: Desktop meter now decays 2.5x faster than it rises
(DecaySmoothing=0.5 vs Smoothing=0.2). When rms drops below current
level the higher alpha pulls the bar down quickly; when audio returns
it rises smoothly. 207 tests pass, 0 warnings.
- Elements scrollbar no longer deselects element on click (check ScrollViewer, not StackPanel)
- Web source: URI + check/revert buttons merged into single DockPanel row, consistent order (✓ rightmost)
- Countdown timer moved from Elements panel to inline in source list row, range clamped to 1-30 min
- Volume slider click-to-position restored: e.Handled prevents IncreaseLarge from overriding position, Thumb drag still works
- Desktop audio meter: asymmetric smoothing (attack 0.2, decay 0.08) for faster response to silence
- 207 tests passing, 0 warnings
gramps