ProPresenter can't report its timecode, so LTC Listen (a small app on SC's ProPresenter Mac, microphone
permission allowed on site 2026-10-26, LaunchAgent org.waterschurch.ltc-listen) reads the same SoundGrid
input (com_waves_WCAudioGridEngine, channel 1) and writes the running timecode. The prop guard logs a drop
in a song (2 s without timecode) with the song and timecode, and serves 127.0.0.1:8095/timecode, which SC's
PROP key checks (TIMECODE LOST). Decoder tested against generated LTC and live (00:27:37:28).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
