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VEP & Thunder bolt
Last post Thu, Jan 05 2012 by DG, 4 replies.
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Posted on Tue, Jan 03 2012 12:21
by jammusique
Joined on Wed, Aug 04 2004, Paris, France, Posts 262

Hi all,

I've recently read that intel will start to support TB on upcoming Motherboards starting this April. Instead of eithernet, I'm wondering if VEP might switch the way it commuicates between computers.

I've read a bit about the real limit, or "bottleneck" when streaming instruments is in the transfer between systems, and not cpu, ram, etc.

Is it worth waiting for a TB Motherboard when considering VEP?

Cheers,

WW complete. MirX Teldex, Cubase, PC
Posted on Wed, Jan 04 2012 02:45
by svonkampen
Joined on Wed, Jan 05 2005, San Diego, California, Posts 828

I sure hope VE embraces Thunderbolt. Because sending Audio over thunderbolt instead of Ethernet should really be great to kill the latency ;-)

best,

SvK

I once thought I was wrong, but I was mistaken.
MacPro 2x3Ghz Dual-Core Intel Xeon, 16 Gig RAM, 10.6.2, Metric Halo 2882, Logic 9
Posted on Thu, Jan 05 2012 13:26
by benbartlett
Joined on Thu, Apr 26 2007, Posts 162

Hmm, but I have found that the power of the slave can impose another "ceiling" to low latency. Or "floor" I should say. 

What I mean is, I have disovered that a fully loaded slave will exhibit much more CPU usage as you take latency down on the DAW, to the point where it can't cope. So the slave needs to be at least as powerful as would be required to catch up with the network demand for processed audio to be fed back. 

But yes - Thunderbolt has got to be a good thing, although at the moment it's all daisy chaining and no hubs. A far as I know.

B

Posted on Thu, Jan 05 2012 13:53
by DG
Joined on Wed, May 12 2004, Posts 8608
benbartlett wrote:

Hmm, but I have found that the power of the slave can impose another "ceiling" to low latency. Or "floor" I should say. 

What I mean is, I have disovered that a fully loaded slave will exhibit much more CPU usage as you take latency down on the DAW, to the point where it can't cope. So the slave needs to be at least as powerful as would be required to catch up with the network demand for processed audio to be fed back. 

Yes, but that's because the latency on the slave is tied to the latency on the DAW. If you increase the buffer multiplier on the slave as you decrease the soundcard buffer on the DAW there should not be much, if any increase in CPU usage on the slave.

benbartlett wrote:

But yes - Thunderbolt has got to be a good thing, although at the moment it's all daisy chaining and no hubs. A far as I know.

Obviously when Thunderbolt becomes available to the general PC building population (later this year) it will have a greater chance of becoming important. However, as it has to be built in to the motherboard, it will take a number of years before it becomes universal, even amongst Mac users. it is also an Intel protocol, so it remains to be seen how that will work with motherboards from other manufacturers. personally I suspect that by the time it becomes the norm better things may be available, such as the original specification that was named Light Peak.

Regarding VSL using TB instead of Ethernet, I doubt that this will happen any time soon, if at all, because TB is not available to the vast majority of users.

DG

Nuendo 6.03, 4.3
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