Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ.

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RE: Until you stick your thing in you won't know what it feels like...

Posted by Steve Eddy on September 17, 2007 at 14:49:14

In Reply to: Until you stick your thing in you won't know what it feels like... posted by tonemaniac on September 17, 2007 at 13:19:23:

Ummmm... unless I have misread reality in some awfully humbling way, aren't we all subjective creatures limited to sensory experience ?

Certainly. Though not all which occurs within our subjective perception is necessarily an unerringly accurate reflection of external sensory input.

so I quite rationally ask myself, being quite rational... how does one compose a material that lowers noise without introducing artifacts ???.. nothing fancier that that... because when all is said and done, this is a signal to noise game, and you can either boost signal or reduce noise either broadly or in various shapings thereof and that's about it... so my fevered brain wants to know, HOW do you whip up some..... errrr... "goop" which has the capacity to vibrate along with ultrasonic noise and turn this annoying parasite into heat without introducing other noises into the audio band... am I asking for too much ?

I wouldn't say it's so much a matter of your asking for too much as your not asking enough. You seem to be coming to conclusions based on assumptions for which there doesn't seem to be any facts in evidence to support.

That's how religions get started. Not how we get at the truth of a thing. So if you're trying to start a religion, then I'd have to say you're well on your way. If not, then you haven't even made it to the starting block.

Let's start at the beginning.

Upon what exactly are you basing your assumption that there's noise being produced in the first place? What's the source of the noise? How significant is this noise? What's its magnitude compared to say the ambient noise in the listening environment? Or the noise produced by the active devices in the equipment? Or the thermal noise produced by the resistors used along with the active devices creating the circuit? Or the thermal noise of the conductors that connect everything together?

You assume the noise is ultrasonic. Why would this be the case? And if it's ultrasonic, how would we hear it anyway?

And finally, as I've asked before, how does this noise manifest itself in the circuit in such a way as to effect the signal being output from it?

se

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