[time-nuts] "Antelope Audio Launches The Isochrone 10M Affordable Atomic Clocking Device"
dforbes at dakotacom.net
Thu Apr 19 12:38:25 EDT 2007
At 9:35 AM -0400 4/19/07, Maggie Leber wrote:
>I'm trying to decide if there's even the slightest chance that this
>actually has any justification,
>or if it's just the latest successor to the $500 wooden knobs and
>"Tube-o-lator" chip lacquer. ...
The only thing missing from that expensive box is a 12 digit
frequency display to show all the zeroes that the customer just paid
so much money for.
An accurate clock is somewhat useful, but the audiophile way is to
spend a lot of money to optimize some unimportant parameter way too
far while ignoring the basic things.
Considering that only rarely is a recording more than an hour long,
having sample timing accuracy for an eight-day-long recording is
Also, it's hard to find a person capable of detecting the pitch error
caused by any crystal oscillator being out of whack by the typical
.01% of a cheap microprocessor crystal. That's less than a tenth of a
Hertz at middle A!
However, if you want the best for your mastering studio, a $100 ebay
surplus ovenized crystal will get you to .00001% accuracy easily,
with lower jitter than a phase-locked rubidium oscillator.
--David Forbes, Tucson, AZ
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