It looks like it's fast because it makes use of x86 and arm SIMD extensions, but you could probably get the scalar version to run on an arduino with some effort. It would likely be slow, though.
If you are looking at arduino audio applications, I would suggest either using a MP3 codec asic or pre-decoding to wav and compensating by using larger storage.
If you are looking at arduino audio applications, I would suggest either using a MP3 codec asic or pre-decoding to wav and compensating by using larger storage.