44.1 kHz x 16 bits per sample is 705 kilobits per second, plus overhead for error correction/detection, packetization and transfer protocols over USB. I don't know the actual amount of overhead, but for the sake of discussion, let's say it doubles the amount of data. That would still require less than 1.5 megabits per second. USB 2.0 is specified to handle up to 480 megabits per second. For CD grade audio playback, USB frequency isn't a limiting factor
frequency is measured in hertz
usb frequency is 12mhz
usb bandwidth.. well, that one's measured in bytes.
and as far as i know nobody ever sad that usb bandwidth is it's limiting factor in case of audio.
it's just like if we would be speaking about speed highways - it's usually not about their width, but about their quality that matters.
Edited by kr0gg - 11/2/12 at 6:15am