How could I import HE-AAC file as 16 bit wav fle in Au?

Question

I have some files, in HE-AAC format(converted from 16 bit wav). When I imported these files in Adobe Audition CC 2018, these files were converted to 32 bit wav file. If I save it as 24 or 16 bit wav file, it would cause quantization distortion. Are there any ideas about import aac file as 16 bit wav file?

SteveG_AudioMasters_ · Answer

When you 'open' a HE-AAC file in Audition, what you are actually doing is decoding it to work in Audition's working format - 32-bit FP. At this point you have it in a lossless format, and almost certainly the best decode you'll get. Why? You've got a 128kb/s stream, and this is already going to be of relatively poor quality (very similar to an MP3 at the same rate). Nothing that happens in Audition in terms of reducing the bit depth is going to reduce the quality of that, and it's certainly not going to introduce quantization distortion, because for that to happen, there would have to be a major error in the conversion. And, if you look at the independant SRC comparison site, you'll find that all versions of Audition sit at the top of the league in this regard, and always have done - although a few of the others have finally caught up at last. Anyway, you have no worries on that score as, I'm afraid, your source is already compromised.

SRC comparison site

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