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Whoa, Steve?

Steve Eddy: ""But for the moment, let's look at this from a bit different perspective. You seem to be looking at this from the assumption that the listener has their head locked in a vice. 1.5 uS with regard to the speed of sound at normal temperature and pressure comes to about 0.02". What happens if one of the listener's ears happens to move 0.02" closer or farther from the source?""

Hey Steve????

If 20 mils is 1.5 uSec...then 2 mils is 150 nSec, and 8 mils is 600 nSec..

That would mean that a woofer that has lf content making it move about ten thousanths of an inch, and high frequency content (say 2Khz), also in the woofer drive and within the woofer response....then the woofer excursion is capable of jittering the 2 K signal over 600 nanoseconds just by the distance between the woofer and the ear. Course, my woofer typically moves just a tad bit more than that..

Hmmm..that makes the discussion of the hi fi system rather complicated, doesn't it?

I had been wondering where, in a typical system, a source of 600 nanosecond jitter could come from..and for stereo, how the left and right jitter content could differ..

It would also provide a basis for why some systems give better imaging..

Cheers, John


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