Yes, because you only have to generate about 192 kilobytes/second to be able to make a pair of humans ear hear anything they could possibly hear, so the problem is bounded.
For that to actually matter you need to be simulating a more complex circuit than the one they give, but not by much: stick a feedback loop in and it gets funky.
No FLAC file can replicate the subjective auditory experience of sticking a finger in your ear canal.