“I am trying to monitor sound input on an output device with the lowest possible latency on MAC and iPhone. I would like to know if it is possible to send the input buffer to the output device without having to do it through the callbacks of both processes, that is, as close as possible to redirecting them by hardware. I am using the Core Audio API, specifically AudioQueue Services, to achieve this. I also use HAL for configuration, but I would not like to depend too much on HAL since I understand that it is not accessible from iOS.
