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Asked: 2026-06-07T10:35:22+00:00

I have run through an audio units tutorial for a sine wave generator and

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I have run through an audio units tutorial for a sine wave generator and done a bit of reading, and I understand basically how it is working. What I would actually like to do for my app, is play a short sound file in response to some external event. These sounds would be about 1-2 seconds in duration and occur at a rate of about about 1-2 per second.

Basically where I am at right now is trying to figure out how to play an actual audio file using my audio unit, rather than generating a sine wave. So basically my question is, how do I get an audio unit to play an audio file?

Do I simply read bytes from the audio file into the buffer in the render callback?
(if so what class do I need to deal with to open / convert / decompress / read the audio file)

or is there some simpler method where I could maybe just hand off the entire buffer and tell it to play?

Any names of specific classes or APIs I will need to look at to accomplish this would be very helpful.

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  1. Editorial Team
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