It is said that the P9 Plus will produce a stereo sound when it is in landscape position. However, I find that the sound pressure from the earpiece speaker is softer than the speaker from the phone bottom edge. Also, it is noticed that the loudness of the stereo sound produced in landscape position is much lower than the loudness of the mono sound produced when the phone is in portrait position.
Please advise if there is any adjustment that can correct the stereo sound output.
Please advise if there is any adjustment that can correct the stereo sound output.