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Should I Use a Clock with My HD6 PT System? Audio Interfaces
Old 6th July 2017
  #1
Gear Nut
 
Cajun Bob's Avatar
Should I Use a Clock with My HD6 PT System?

I've just installed an HD6 system and trying to decide if I need an External Clock or not.

If you do recommend one, please tell me which one.

Thanks

Bob
Old 6th July 2017
  #2
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Quote:
Originally Posted by Cajun Bob View Post
I've just installed an HD6 system and trying to decide if I need an External Clock or not.

If you do recommend one, please tell me which one.

Thanks

Bob
depends on how many interfaces you will be running. 2 or more yes. just 1…debatable.

ej
Old 6th July 2017
  #3
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barryjohns's Avatar
 

Quote:
Originally Posted by ejsongs View Post
depends on how many interfaces you will be running. 2 or more yes. just 1…debatable.

ej
Not accurate. You do not need a clock unless you need to clock external gear. Loop Sync is all you need of using I/O's.
Old 6th July 2017
  #4
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DarkSky Media's Avatar
Quote:
Originally Posted by barryjohns View Post
Not accurate. You do not need a clock unless you need to clock external gear. Loop Sync is all you need of using I/O's.
True.

But you can argue that when there are two interfaces, you are already facing the need to synchronise (via Loop Sync or otherwise), and therefore bringing a higher quality external clock into the mix could be a benefit (as against the contention* that with a single converter, external clocking offers no improvement).

* hotly debated as this issue continues to be in some quarters... ; )
Old 20th July 2017
  #5
Gear Nut
 
Cajun Bob's Avatar
Clock or no Clock

Currently, I have three 192's and a Magma with One Core and 5 Accel cards.

So what I'm hearing is a Clock would be best?

If So, what Clock?

Thanks

Bob
Old 20th July 2017
  #6
Lives for gear
 
DarkSky Media's Avatar
Quote:
Originally Posted by Cajun Bob View Post
Currently, I have three 192's and a Magma with One Core and 5 Accel cards.

So what I'm hearing is a Clock would be best?

If So, what Clock?

Thanks

Bob
I'm clocking a rack of HD I/O, an HD Omni and a handful of other devices from a Grimm Audio CC1.

Not sure if they are still making them, but the Grimm is excellent.
Old 20th July 2017
  #7
Lives for gear
 

Avids own literature / white papers state that using loop sync, each unit has to re-buffer the clock to then pass on to the next unit. this by it's very nature means that there will be a slight onset in clock from unit to unit.


imagine an orchestra playing, in the real world all players keep an eye on the conductor.

loop sync is akin to the orchestra being set up in a line and only deriving their cues from the player in front of them. stretch that across 80 players and imagine the onset that could occur.
This of course in an exaggeration of the issue, but you get the idea.
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