manashtubu , via OnePlus 6T , Nov 10, 2019 at 6:49 PM : Hi, When i just to listen music with headphone, the audio use to automaticaly convert to stereo audio from Dolby audio. When i go to Equalizer and change anything there then again I will come to dolby. This happens most of time with any headphone. What is the solution? I am running with Android 9 .