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Re: Noise floor vs. uncorrelated noise

Dear TAH,

What you say does not disprove the fundamental truth in my statement, fact is that analogue media have audible and recognisible signal artifacts well below their noise floor, which digital media do not.

I am not sure what kind of turntable you have but I have not had much of this kind of noise for many years and even on 78 where there can be quite a lot of clicks and pops they rarely last long enough to overwhelm the signal as you suggest, in fact this is no different from sitting at a concert with people coughing behind you in the quiet passage of a symphony, the musical line remains unbroken.

Cocktail effect?

There are no other stimuli, for example, from someone sitting with their back to you in a restaurant, but you can still hear what they say even if it is below the ambient noise in the room.

It is well established that the ear has marvellous separation of individual sounds from noise once it has had a chance to home in on this, something we have not been able to replicate with any test equipment I know of.

All this really means is that we lack the complete understanding of what causes the differences in sound between the media, which is hardly surprising given the primitive measurements we use as proof of progress.

Sincerely,
Peter Qvortrup




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