Reported: TRAX plays audibly but no ladder registers anywhere.
Two distinct faults, one of them mine:
1. The meter readouts were refreshed only from the MIC's level callback. With a silent or absent
mic there is no tick, so a playing TRAX never updated its ladder — the level was measured, the
UI simply never asked for it. Meters now have a 20 Hz DispatcherTimer of their own.
2. If the player's own meter still reads 0 while playing, the samples are not reaching the device
(or metering is not attached). That now writes ONE line to startup.log after 2s — so the next
report says which side is broken instead of another round of guessing.
Note: TRAX rides the desktop loopback, so once the mix captures it the GAME ladder should move too;
if it does not, the loopback endpoint and the music's output device differ.
gramps
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