Android/Focus+ ,Photon Voice detection microphone

Sorry in advance for my english.

I use photonVoice for PC and everything works, i switch for android, i add in the manifest
<uses-permission android:name="android.permission.RECORD_AUDIO" />
and i use permission for the focus.
Permission ok but when i go in my scene where is photonVoice, it can't find the microphone, he return 0 when i do Recorder.PhotonMicrophoneEnumerator.Count.
And i have these errors.

Thanks for reading this post.