sound IOS recording

I have two audio sources that run at the same time. One is mic that i am recording and one song.
When i play them both in IOS i do not hear the sound in the speaker, only in “ear” speaker.
It is only happening in IOS, not in android and pc.
It has been started since we start UNITY 5,3.
Any suggestions?

This is a bug in Unity, it should be solved unchecking the option in player settings “Prepare iOS for Recording”, but it doesn’t solve the issue.

Could you try this plugin? It should work: GitHub - cbaltzer/UnitySpeakerFix: Forces audio to speaker while using the mic, on iPhone

The bug report for this case is the number 762948 and will be fixed ASAP.