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How is hardware's sound resolution capability measured?

post #1 of 3
Thread Starter 

I have been seeing alot of graphs of THD and frequency response.  Since I favor certain DAPs because of the details and separation to offer given the right headphones, I was wondering how to check for that?  Is there any measurements for that?  If so, please provide me to some links.  I would like to see comparasons of many DAPs.  Thanks.

post #2 of 3

There is no direct measurement for this. The closest is probably intermodulation distortion. Possibly also spectral decay graphs.

post #3 of 3

Keep this in mind:

You probably won't notice a difference between 0.001 and 0.1% distortion but you will notice a 0.5 dB accentuation of treble frequencies (even if you cannot detect it as such). To me it seems that the latter often is mistaken as higher resolution while in fact it's just a small FR variation - which are unavoidable with some amp-headphone combinations.


Edited by xnor - 5/28/10 at 12:46am
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