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The guest joins without an account. The host controls room creation and the shared backing timeline.
1

Prepare your vocal source

Add your microphone to OBS, apply any intended filters, and verify its meter. Connect headphones before joining.
2

Open Music Collab

Open the Music Collab or vAudioLink Karaoke dock from Docks.Select Join as a guest.
3

Paste the guest key

Under Connect with a guest key, paste the complete key from the host and select Connect.Expected result: the page changes to Partner Music Collab and shows the room as joined.
4

Confirm your vocal source

Select the microphone source you intend to send. Speak and verify the local vocal meter changes.Tell the host when your dock shows connected.
5

Wait for the backing track

When the host loads a track, keep the room connected. Your dock may show receiving, preparing, or waiting while the file becomes ready.Expected result: the dock reports that the backing is ready and waits for the host to start.
6

Test the scheduled start

The host selects Start song. Do not start a separate local copy of the track.Sing a short test phrase and ask the host to check the combined output recording.

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Guest rules that preserve sync

  • Stay connected while the backing track transfers.
  • Do not independently play the same song in another media player.
  • Do not add a second backing source to your program mix.
  • Let the host start, stop, and restart the shared timeline.
  • Keep your vocal sample rate and OBS configuration stable during the session.
The goal is alignment to one backing timeline, not zero conversational latency between singers. Use a separate talkback channel carefully if you need conversation between takes.

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Leave the session

Select Leave session. If reconnecting with the same key fails, ask the host to copy the current key or rotate it.