riNcis, Dec 2, 2018 : Title Found something interesting about microphone usage for third-party apps Device OnePlus6 Software Version O2 Stable 181026 Probablility of occurance 5_100% Topic Sound & Vibration Photos Carrier/Network Actual behavior These apps are using top microphone, which has bad microphone quality. Was this a problem in previous software versions Yes This is a regression. Expected behavior Phone should use bottom microphone on those certain apps. Any other comments Reddit link which explains the problem more detailed. Can't post here all, because of character limit https://www.reddit.com/r/oneplus/comments/a2fwcz/important_found_something_interesting_about/ Open up Whatsapp, Snapchat or Facebook. Place your finger on top of the top microphone and record some sound - see for yourself! And now test it on Instagram or default Camera app - you will see what I mean.