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Jitter

Jitter is the deviation of some aspect of the pulses in a digital signal. In audio applications, Analog to Digital converters are one of the most critical components that are susceptible to jitter. Using an internal or external clock, an A/D converter "slices" an incoming audio signal into a number of pulses that digitally conforms to the original source.

DIGIMAX to DIGI 001 (Clock or jitter problems?)

I’ve been learning a lot reading your posts here guys.
So, first of all, I should say THANK YOU FOR ALL THE INFORMATION YOU PROVIDE AT THIS FORUM.
But I need an advice.
I have a DIGI 001 at my home studio and I am planning to buy a DIGIMAX (PreSonus) to improve the number of available inputs I can record at once (8 analogs + 8 digital).

External Clocking, Jitter and Sound Revisited

In the new issue of Tape Op, Bob Katz of Digital Domain states that "99 times out of 100, the INTERNAL clock in a converter will produce lower jitter and thus better sound than if you clock that converter externally from the most stable wordclock generator in the world! The reason: A crystal oscillator is much stabler than a phase locked loop.