Sync: the phone that listens (Session 7)

This page hears the room, finds where the Session 7 Setting video is, and broadcasts the position: on the receiver channel for the receiver window, and on the playing passage's own study channel (the one its QR carries) so a phone that scans the QR follows this one. Once it has caught a sync it keeps going on its own clock; it never pauses.
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whole video --:--.--
NOT LISTENING
loading the reference...
Sync offset (the followers run ahead by this much)+8 frames (+267 ms)
-30 frames (-1000 ms)0+60 frames (+2000 ms)
Frames at 30 fps. Default +8 frames. Remembered on this phone. Applied to every position this page sends.
Lockoff
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 (receiver channel)0
Receiver channelconnecting
Study channel (the playing passage's QR channel)none yet
Study positions sent / hellos answered0 / 0
The four study channels-
Workshop flag (the two-hour window every visitor sees)not written
Workshop flag goes to
Audio clock-
Landmarks in the window / matched0 / 0
Keep this page open and the screen on. The reference is the whole Session 7 Setting video's audio and nothing else. Once locked, the position runs on this phone's clock and is broadcast four times a second on the receiver channel and every 1.5 seconds on the playing passage's study channel (and at once when a joiner says hello); silence never pauses it; a seek or a restart in the room re-anchors it when the new place has been heard twice in a row. During the opening and between passages nothing is sent on the study channels. While locked, the workshop flag is pinged every 30 seconds.