I cant hear both sound while screen recording

problem on my phone is when I screen record I know at same time I turn on my mic after that I started to watch videos but the video sounds are so less after thinking sometime my ear speaker is working at the same time the main speaker isn't working and I have issues same in the PUBG lots of iOS user can communicate but mine when I screen record or maybe using streams to live on YouTube everything is good when I turn on the mic the main problem is I cannot hear the sound from the speaker properly so what is the solution of my problem and how can I fix it I want to play PUBG while live on YouTube can also communicate with other people and when I do live I can communicate with my teammates and able to communicate with my viewers at the same time when I turn off the mic on live I can easily communicate with the teammates but I am not able to send my voice into the live stream I haven't use any earphones Bluetooth or any wireless or any wire earphone I used to play without anything so maybe this maybe is not a problem or this is the problem