Comment by surganov

What for? It's just streaming audio chunks with Core Audio that you cannot bypass. Even if there's resampling of 44.1khz to 48khz (Mac's default nowadays), it's not audible. Bit by bit perfection matters when you do a lot of processing, like in the context of a DAW or sound plugins, but not so much in the listening context. DA (digital-to-analog) end-chain matters much more – the actual audio interface and speakers, where all file-to-sound-wave reconstruction magic happens.