iPhone usb audio

Hi, I plugged my iPhone into the QC using USB camera connection kit to try and play a backing track to jam along to. The sound was quiet and warbled no matter what input/output combinations I used. Has anyone had success with iPhone usb audio or is it best to use iPhone headphones audio out into input 2 or return jack in QC?

I couldn’t get my iPads to connect (using the specified usb to lightning/C camera adaptor) so I ended up using a basic 2 channel audio interface (Roland Rubix 24): I connect the QC cable output to its input and use the usb output of the Rubix. That works fine.
An expensive workaround though !

Hi @alanstevenson , I have used my iPhone over USB for backing tracks multiple times and it worked with zero issues each time. I also used a camera connection adapter etc., I remember someone recommending to disable MIDI over USB when using your iPhone for that manner. If that doesn’t work. reach out to NDSP support@neuraldsp.com and they will get you sorted.