Re: Interfaces considered a "step up" from the Avid I|O?
Quote:
Originally Posted by JFreak
THD means nothing today. Only spec I would judge by numbers is AD dynamics for recording. Currently sweet spot is 124dB, as in 20dB headroom below full scale, but would not mind if the converter had full 144dB dynamics that a 24bit fixed-point audio file can store.
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20dbU or 24dbU is an analogue measure of input (or output.) There is not the concept of "124 dB". That's a limitation of noise floor (which goes back to THD+N.) A 20dbU converter can have any any type of input DR (119 for the Aurora(n)) dBU sets peak but it doesn't set floor once in the digital conversion-side.
And there are zero converters on 144dB "dynamic range". In a purely digital world, sure. But max is (practically) ~130dB. A 24 dBU or 30 dBu converter still is limited by circuit physics. Which is why THD+N is the limiting factor
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