I have been having a hard time using an external DAC with my Meizu MX3. The DAC I have is an iFi Nano iDSD, connected to the MX3’s Usb port with an OTG cable. The software I use to play the music files is Usb Audio Player Pro (http://tiny.cc/olo6ox). I have tried .flac, .dxd and .dsd files. I have also tried every possible firmware. The best to date in terms of being able (sometimes) to play the music files (although down-converted) through the external DAC seems to be the latest (Flyme OS 4.0.4A)
Although my phone enters in “USB Audio” mode when I connect the external DAC, the music files are always down-converted to 44.1Hz. It seems that the iFi Nano is never actually used to convert the files and play them in their native resolution. Instead, the phone’s own internal DAC forces the file to go through its own internal DAC and down-converts the file before sending it to the Usb port. I have discussed this problem with the developer of the Usb Audio Player and we both agree that the phone is not allowing the application to use its own driver.
So, my question is if anyone knows how to disable the MX3’s Usb Audio driver? Supposing that this is the problem of course, and nothing else entirely different.
Thanks in advance for any advice!