micIsInUse on Mobile SDK

micIsInUse is a SukiAmbientCoreError case. Another app is using the microphone, so Mobile SDK cannot start or resume recording.

Error id	Description
`micIsInUse`	Another app is using the microphone. Cannot start or resume recording
`needMicrophonePermissionRecording`	Microphone permission has not been granted
`unableToStartRecording`	Audio engine setup failed (no inputs, `AVAudioSession` error, and similar)

Catch and recover

Match the case name in your SukiAmbientCoreError handler:

Swift

do {
  // Mobile SDK call that starts or resumes recording
} catch let error as SukiAmbientCoreError {
  switch error {
  case .micIsInUse:
    // Ask the clinician to end the other app's audio activity, then retry
    break
  case .appIsNotActive:
    // Bring the app to the foreground, then retry
    break
  case .needMicrophonePermissionRecording:
    // Request microphone permission, then retry
    break
  default:
    break
  }
}

Fix

Catch micIsInUse

Handle micIsInUse in your error UI with a clear message and a retry path.

Free the Microphone

Ask the clinician to end the other app’s audio (for example a phone call or another app holding the mic), then retry start or resume.

Check Permission and Engine Errors

If the error is needMicrophonePermissionRecording, request permission first. If it is unableToStartRecording, inspect audio engine and AVAudioSession setup. See Mobile SDK error messages.

Next steps

Mobile SDK error messages - Recording and microphone error ids appIsNotActive when starting Mobile SDK recording - Background start blocked on iOS Mobile SDK troubleshooting FAQs - Common Mobile SDK issues Microphone permission denied - Browser mic permission failures Offline upload failures on Mobile SDK - Offline sync and upload events

Last modified on September 29, 2026

​Catch and recover

​Fix

​Next steps

Catch and recover

Fix

Next steps