DVC and volume adjustment

[Future_mike]

Device: HTC Desire 816

Android 4.4.2 with HTC Sense 6.0

DVC - On:

There are micro cuts during playback (or maybe volume just drops to 0 for a fraction of a second) when i change volume.

No problems with dvc off, but audio quality really suffers.

I already tried:

1. Changing "Audio buffer size".

2. Changing "Audio thread priority".

3. Turning off HTC's own audio enhancement - BoomSound.