psyke83/android_device_samsung_galaxy5 — comment on commit ff638a6d3681a1b0930ffc12e64328103a6b1ae1
File:  line 0
By psyke83:

I just tested here and the mic doesn't turn off when the screen turns off. You should monitor the radio log during the call and see if there's any RIL activity. It could also be a baseband issue.