Propeller Head Plaza

Well said

206.255.203.68

In Reply to: RE: Class D designer speaks posted by morricab on February 14, 2008 at 03:37:06

I believe in measurements as well... in so far as they have a meaning beyond being a number. Looking at the oscilloscope to see the relative absence of switching noise is of course important but beyond that there is not much more to see there except perhaps bandwidth and the onset of gross distortion. Most of the measurements paraded by manufacturers are just that, only numbers without value attached. When someone can take a number and say it has a correlation coefficient of 0.9 or greater with listener preference then I will sit up and take notice, otherwise if any correlation at all, I have seen an INVERSE correlation between sound quality and measurements like THD.

There is a distinct difference between mere information and knowledge. Wishing a metric to provide meaningful knowledge is not good enough.

rw

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