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Fixed in 2021.3.34f1, 2022.3.16f1, 2023.2.4f1, 2023.3.0a15, 7000.0.0a1



Found in


Issue ID




Microphone.Start hangs on iOS 17 (under certain conditions)



This bug report came in via the Unity forums:

I wanted to raise awareness of reports we are receiving from customers that our application hangs when we attempt to Microphone.Start Microphone.devices. This is isolated (so far) to:

1) customers that have paired Bluetooth "hearing devices" such hearing aids or cochlear implants
2) customers after updating to iOS 17 (no issues reported on iOS 16 with hearing devices)

  1. Resolution Note (fix version 2023.3.0a15):

    Fixed an audio bug on iOS. On iOS 17, if a Bluetooth audio device is connected, and "Prepare iOS for Recording" is un-checked, the C# Microphone.Start function could cause Unity to hang.

Comments (1)

  1. Jerkins

    Nov 16, 2023 08:37

    Pressing the prepare microphone function will make the sound smaller (coming from the handset).
    If you call the IOS function to force it to change to the speaker,
    the background music (music player) will stop.
    Hope this is fixed.

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