spoonerp

My copy of Poweramp appears to distort the data stream. I want it to pass the .wav file contents unaltered to an HDMI adapter connected to my phone's USB port, but the data presented is scrambled. Other players such as Samsung Music and Pi Music Player do not have this shortcoming. Any clues as to how I have to set Poweramp up for this requirement, or is it beyond the capabilities of the product, please?