Few other headphones, dac and amp were also used to ensure coverage on other parameters, and they fit well with the same descriptions.ġ. Gear used - surface book 2015, apogee groove, supra usb cable, burson fun, sparkos ss3601 opamps, shure srh1540, OnePlus 3. The key to this is to be able to probe at the i2s pins of the usb to i2s. So yep I have experienced till there, on a system that would be shown bitperfect by any software analysis inside the computer. I have done experiments and I have found that the more constrained and the more buffer underruns the harsher/grainer the sound gets to and extent and past that I get serious crackle noises. There is a possibility they could just get concealed, either by any logic/fsm in the usb receiver, or the fact that a delta Sigma dac can behave as a natural packet loss concealer. It works more like UDP than TCP in that it doesn't guarantee a failure when packets go missing or get corrupted during transmission. It is too early to conclude the causation of these changes but a look into USB audio protocol (asynch) gives better clue. More on the technical breakdowns at the end of the analysis.
I almost always used ASIO with proper buffer configurations wherever supported (almost all of them do except strawberry, mediamonkey etc). Your mileage may vary on protocol support.įor all of the tests/analysis, I have tried my best to make sure there is no additional zero padding, upsampling/oversampling etc is in play within the server system. If you have a network streamer or signal regenerator/reclocker or any other protocol, the inferences may not carry over. This is only relating to USB dac connected to PC directly and using a general asio/uac2 driver. Note: Most of these software are free so you can try and check for yourself.
#Audirvana plus 3 upsampling music always interrupted android#
A comparison of music players on windows, linux, android I have done.