Hi
I have an digital clock generator from Mytek called studioclock which clocks my entire system.
PUlsar gets its clock from syncplate right from Mytek.
So pulsar has the clock ARRIVING from bnc input of syncplate and I believe it is appearing in Syncpalte's source device.
Thats point A , meaning the clock I need is at syncplate's source device...
Secondl;y I have several digital outboard devices that come in from different Scope inputs, like two spdif inputs and adat inputs.
Now presently I have to CLOCK ALL these devices right from Mytek in order to have a proper jitter free digital signal right thru.
Now my point starts here...
To SAVE me some wordclock outputs from Mytek (lot of outboard digital here) I thought of the following...
While Scope gets its signal from point A maybe there could be a simple device (how simple don't know) that will take signal from say spdif input pass it thru itself and this very module should have a clock input to just interconnect syncplate's clock out (mytek clock) to this device's clock in.
Now according to my theory the digital signal coming in from this very spdif will be in clock with all other signals and WILL NOT NEED to be clocked BEFORE coming in to Pulsar !
This way someone like me could save on buying a wordclock distributor (over 600-700 euros) just to duistribute a wordclock to more outputs !
Did I made myself understood somehow ??
Thanks !
Dimitrios
digital audioReclocking device for scope can this be done ??
well, it's not entirely clear, but I guess you mean that you accept to buy a more precise (and expensive) device like the Mytek clock, but you want to save on a 'distribution device' that you need to supply more outputs (?)
If you clock Scope via syncplate (with a better clock source), then anything that is digitally slaved to Scope would automatically benefit from the improved clock, at least withing the range the connection type allows.
Ideally all your external devices would allow BNC sync from one single source (star-distribution of the clock signal)
This may not always be possible, as the device might lack a BNC sync entry and some have only digital outputs, so they cannot be synced at all.
Even if the latter type would be re-clocked, it doesn't improve the device's audio quality (assuming it's processing an analog signal, say a reverb or a compressor), as the conversion stage already suffered from the 'bad' internal clock. Imho you wouldn't loose or gain by just using analog outputs in that case.
If the outboard gear HAS digital inputs, then the problem doesn't exist because you could slave it to (the improved) Scope clock - imho there is few quality gear (if it exists at all) that does NOT allow digital sync, so there is no problem (if I understood the 'problem' correctly)
cheers, Tom
ps regarding prices:
600-700 Euro may seem expensive, but you have to consider it its a very rarely needed device (but still had engineering costs) - similiar to the 180 Euro for the CWA sync plate. The electronic of the latter doesn't cost more than 15 Euro... (afaict from the photo)
If you clock Scope via syncplate (with a better clock source), then anything that is digitally slaved to Scope would automatically benefit from the improved clock, at least withing the range the connection type allows.
Ideally all your external devices would allow BNC sync from one single source (star-distribution of the clock signal)
This may not always be possible, as the device might lack a BNC sync entry and some have only digital outputs, so they cannot be synced at all.
Even if the latter type would be re-clocked, it doesn't improve the device's audio quality (assuming it's processing an analog signal, say a reverb or a compressor), as the conversion stage already suffered from the 'bad' internal clock. Imho you wouldn't loose or gain by just using analog outputs in that case.
If the outboard gear HAS digital inputs, then the problem doesn't exist because you could slave it to (the improved) Scope clock - imho there is few quality gear (if it exists at all) that does NOT allow digital sync, so there is no problem (if I understood the 'problem' correctly)
cheers, Tom
ps regarding prices:
600-700 Euro may seem expensive, but you have to consider it its a very rarely needed device (but still had engineering costs) - similiar to the 180 Euro for the CWA sync plate. The electronic of the latter doesn't cost more than 15 Euro... (afaict from the photo)
clock
Hii I feel that you did not understood my point of view...
I already have the mytek digital clock which outputs bnc wordcloks .
My real question is only one.
Can inside Scope a digital signal being reclocked ??
With the clock from syncplate source which is already clocked from Mytek.
Tis is to avoid the clicks and pops ...
Regards,
Dimitrios
I already have the mytek digital clock which outputs bnc wordcloks .
My real question is only one.
Can inside Scope a digital signal being reclocked ??
With the clock from syncplate source which is already clocked from Mytek.
Tis is to avoid the clicks and pops ...
Regards,
Dimitrios
Dimitrios, of course I understood that you have the Mytek clock, which has 6 BNC outs.
I did not understand if you need more than 6 sync outs or if you wanted to avoid the unit at all, as it's called Generator/Distributor on the web page
for quality of sync you cannot avoid it, as Scope is less precise
re-clocking of sources is automatically done by slaving them, all un-slavable devices are (most likely) of inferior quality anyway, so few concerns there.
Regarding clock precision it doesn't matter from which source it originates (at least not within reasonable bounds)
you could have 6 devices bnc synced (directly from the Mytek) and as much 'Scope digitally synced' (slaves) as you have digital ports - those devices slaved to scope are effectively 'reclocked' if you want to call it that way.
the 'idea' you seem to follow is technically not feasable in a software system - that is better (and more straight forward) done in pure hardware imho.
cheers, Tom
I did not understand if you need more than 6 sync outs or if you wanted to avoid the unit at all, as it's called Generator/Distributor on the web page
for quality of sync you cannot avoid it, as Scope is less precise
re-clocking of sources is automatically done by slaving them, all un-slavable devices are (most likely) of inferior quality anyway, so few concerns there.
Regarding clock precision it doesn't matter from which source it originates (at least not within reasonable bounds)
you could have 6 devices bnc synced (directly from the Mytek) and as much 'Scope digitally synced' (slaves) as you have digital ports - those devices slaved to scope are effectively 'reclocked' if you want to call it that way.
the 'idea' you seem to follow is technically not feasable in a software system - that is better (and more straight forward) done in pure hardware imho.
cheers, Tom
Last edited by astroman on Fri Mar 09, 2007 12:19 pm, edited 1 time in total.
Dimitrios, I understand what you want, but honestly can't say for sure whether your re-clocking suggestion is possible for a 3rd party sdk developer if at all. My guess is no, that it wouldn't be possible without changes within the Scope software itself, but even then I just can't see how the CW hardware would support it.
I thought you said the point of this re-clocking idea was to free up some of your mytek clock sources to use on other gear? That's the only reason I suggested sending wordclock to the adat devices via adat via Scope. As long as they have adat inputs routing like that would normally work jitter free.
I thought you said the point of this re-clocking idea was to free up some of your mytek clock sources to use on other gear? That's the only reason I suggested sending wordclock to the adat devices via adat via Scope. As long as they have adat inputs routing like that would normally work jitter free.
I have an M-audio firewire 410 with only spdif i/o. If I connect the spdif out of pulsar to 410 and back in to pulsar1 I dont get a signal into scope from 410. But 410 receives a signal from scope.
Spdif doesnt seem to work very well in some circumstances. I also use a syncplate and house clock (BNC)
When connected to my pulsar2 it works!?
I've resulted to attaching it to one of my RME devices in spdif and submixing it amoungst the ADATs
Maybe it has something to do with 1st or 2nd generation boards.
Spdif doesnt seem to work very well in some circumstances. I also use a syncplate and house clock (BNC)
When connected to my pulsar2 it works!?
I've resulted to attaching it to one of my RME devices in spdif and submixing it amoungst the ADATs
Maybe it has something to do with 1st or 2nd generation boards.
