what is the difference between events participant_...
# ask-aiw
wide-dress-57902
08/12/2025, 12:58 AMwhat is the difference between events participant_connected and participant_attributes_changed?
t
tall-airline-16756
08/12/2025, 12:58 AMThanks for reaching out, Arthur. I'm an AI assistant and I'm here to help. Give me a moment while I research this topic.
tall-airline-16756
08/12/2025, 12:59 AMHey there! Just wanted to clarify the difference between the participant_connected and participant_attributes_changed events in LiveKit—they each have their own role:
• participant_connected: This pops up when a new remote participant joins the room after you’ve connected. It gives you some basic info about the newcomer, like their identity and initial details.
• participant_attributes_changed: This one happens whenever a participant’s attributes (those app-specific key-value pairs) get updated. It lets you know exactly what changed, showing both the old and new values, plus which participant it’s about.
So, to sum it up: participant_connected is all about someone new joining the party, while participant_attributes_changed is your heads-up when someone’s details get updated.
w
wide-dress-57902
08/12/2025, 1:02 AMwhich one will be used to determine if a caller has entered the room and is currently actively listening to the convo?
t
tall-airline-16756
08/12/2025, 1:02 AMHey there! To figure out if someone has joined the room and is actually listening in, here’s a simple way to check:
1. Detect Room Entry: Keep an eye on the
participant_connected Copy code
// Check if a specific participant has audio tracks
const participant = room.remoteParticipants.get(participantIdentity);
if (participant?.audioTrackPublications.size > 0) {
console.log(`${participant.identity} is currently listening`);
}