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Old 26th March 2008   #75
Nordenstam
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Quote:
Originally Posted by macc View Post
Now, I know that top-notch AD's have higher headroom analogue stages and so on (at least that's what you read about here), but nevertheless, that headroom is still over 0dBFS. This is what I don't get - how do such AD's 'translate' that over-zero information any better than anything during the conversion stage?
I don't really know, but I think it goes like this:

Clipping creates fast changes. Fast changes are high frequency. If this is done purely digital, those high frequencies have no where to go but to alias into the audio range. That's why clipping at higher sample rates often sounds better - less alias.

If the sampler clips prior to the antialias filter, the extraneous high frequency information will be removed and the clipping will sound cleaner.


Andreas Nordenstam
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