Component audibility. Fact or fiction ?

[jcx]

I've seen Audacity drop samples - its not really that robust to take as the final word on digital audio - it just that its free - of course windoz legendary real time capabilities probably aren't helping

 

[PMA]

The question is the method itself - why Mooly stands on the way he does it. IMO, it is useless for a try to find subtle differences. It rather reveals flaws of the method itself.

 

[scott wurcer]

The line is close to 19.700 Hz and it is probably an effect of studio "green" lights.

This is becoming a huge problem in several places, LED light switching supplies and ballasts are all over the map. BTW there is 15,750 TV noise in a reference test track on the very first 1984 SONY CD player test CD.

 

[Mooly]

It gets worse. To align start I cropped 26 samples from start of "cropped music2". Moving along in files it doesn't take long for offset to reappear. Original Dell starts leading. Lead continues to grow, the further along into tracks observation is made. By end of Original Dell, it leads by roughly 71-72 samples. This is due to either samples being dropped, or the D/A and A/D converters running different clocks.

I'm afraid I don't know enough of the subject to add much of use although I am not the slightest bit surprised at what you found. And is that really a problem though, at least for comparing files audibly. As I understand it, sampled at 44.1kHz for example then 72 samples difference is 72/44100 of a second is 1.6 ms difference.

 

[Mooly]

A new one for you all.

http://www.diyaudio.com/forums/ever...lifiers-have-their-own-sound.html#post3828140

This is very different and looks at the actual voltage signal across the speaker. Very non scientific but could it have promise as a test method ? There's no doubt whatever in showing audible differences here, they are huge.

 

[M Gregg]

Method for "conditionning" a carbon resistor by JL Naudin

A special resistor......

Regards
M. Gregg

 

[Mooly]

I don't get it tbh.

Its just running a resistor so far outside its performance envelope that it fails unpredictably and with no repeatability.

 

[M Gregg]

I don't get it tbh.

Its just running a resistor so far outside its performance envelope that it fails unpredictably and with no repeatability.

Looks like spark erosion to me..

How to make a resistor that performs like a failing carbon sparkplug lead..
(its special)..

Regards
M. Gregg

 

[SY]

I don't get it tbh.

Jean-Louis Naudin is a notorious pseudoscientific fraud. Perpetual motion, repackaged, is his claim to "fame." So the fact that you don't get it is an indication that you're intelligent.