On iPhone, when you allow microphone access during a LiveKit session, iOS automatically changes the audio session to support bidirectional communication. This system-level change can cause video playback volume to decrease, as iOS prioritizes the communication audio path and enables echo cancellation. To address this issue, consider the following solutions: • For native iOS (Swift) apps: Disable automatic audio session configuration in LiveKit by setting

AudioManager.shared.audioSession.isAutomaticConfigurationEnabled = false

. This lets you manually configure the audio session for your needs, such as prioritizing media playback. • Manually set the AVAudioSession category and mode to favor media playback if your use case is video-centric. You can use the

setAppleAudioConfiguration

method to specify the desired configuration. • For web-based LiveKit apps: The LiveKit JavaScript SDK includes a workaround that plays silent audio in the background to prevent iOS from reducing or blocking video playback volume when the mic is enabled. Adjusting the audio session configuration as described will help maintain consistent video playback volume during your LiveKit sessions on iPhone. Sources: src/room/participant/RemoteParticipant.ts | Docs/audio.md | docs/index.html