This page hears the room, finds which produced passage is playing and where, and broadcasts the position: on the demo channel for the receiver window, and on that passage's own study channel (the one its QR carries) so a phone that scans the QR follows this one.
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NOT LISTENING
loading the reference...
Lock
off
Confidence (votes in the last 2.5 s, and how far ahead of the runner-up)
0
Match delay (compute time per update)
0 ms
Round trip (this phone to the receiver and back, measured on this clock)
waiting for an echo
Broadcasts sent (demo channel)
0
Demo channel
connecting
Study channel (the passage's QR channel)
none yet
Study positions sent / hellos answered
0 / 0
Audio clock
-
Landmarks in the window / matched
0 / 0
Keep this page open and the screen on. The position is broadcast four times a second on the demo channel while locked and every 1.5 seconds on the passage's study channel (and at once when a joiner says hello); when the sound stops for more than a second it broadcasts paused. Add ?stale=2 to wait two seconds of silence before calling it paused (default one second).