KVR Audio

MaliceX · Post by **MaliceX** » Fri Jan 04, 2008 2:32 pm

I don't have a dual-core set up to test with energyXT so I'm afraid I have no idea whether or not non-dual-core-supporting applications would appear ticked on the activity manager regardless.

(But I will be soon, hence this information is vital to me.)

Barf · Post by **Barf** » Fri Jan 04, 2008 4:02 pm

I'm bying a new system soon, probably Intel duo-core or quadcore, my fear is that i'll get problems with some plugs in tracks i'm working on. I'm using a lot of freeware stuff. So what kind of problems can arise? Plugs not showing up, no sound etc?

DevonB · Post by **DevonB** » Fri Jan 04, 2008 4:07 pm

Artvera wrote:Somebody here on KVR had the opinion that problem with SE plugins can happen only with dual core Intel and if SE plugins are used on dual core AMD, so it works fine.

I have a dual core AMD. Which plug-in has known issues with multiple instances, and I'll test myself.

Devon

D-Fusion · Post by **D-Fusion** » Fri Jan 04, 2008 4:23 pm

DevonB wrote:
Artvera wrote:Somebody here on KVR had the opinion that problem with SE plugins can happen only with dual core Intel and if SE plugins are used on dual core AMD, so it works fine.
I have a dual core AMD. Which plug-in has known issues with multiple instances, and I'll test myself.

Devon

Adventus 1.5

DevonB · Post by **DevonB** » Fri Jan 04, 2008 5:53 pm

D-Fusion wrote:Adventus 1.5

Does the demo exhibit the problem? Easy enough to load in. I think I still have it.

Devon

D-Fusion · Post by **D-Fusion** » Fri Jan 04, 2008 6:03 pm

Yes i think it will happen with the demo also.

ew · Post by ew » Fri Jan 04, 2008 6:22 pm

I've heard of this happening with some plugins and IntelMacs as well (obviously, this is non-SE plugins).
Personally, I think it's the old Intel denormal issue coming back with a vengeance.

Has anybody with the problem tried running something like P-Bugger?

ew

D-Fusion · Post by **D-Fusion** » Fri Jan 04, 2008 6:36 pm

ew wrote:I've heard of this happening with some plugins and IntelMacs as well (obviously, this is non-SE plugins).
Personally, I think it's the old Intel denormal issue coming back with a vengeance.

Has anybody with the problem tried running something like P-Bugger?

ew

Damn

Pbugger kills my audio and make the host go to overload.
If i choose the P-1 fix (threshold) the cpu overload goes away, but the P-2 fix doesn't do anything).

I am using a Intel Core Duo E4300 and i thought that The New intels was supposed to be free of that old denormal bug

DevonB · Post by **DevonB** » Fri Jan 04, 2008 7:17 pm

D-Fusion wrote:
ew wrote:I've heard of this happening with some plugins and IntelMacs as well (obviously, this is non-SE plugins).
Personally, I think it's the old Intel denormal issue coming back with a vengeance.

Has anybody with the problem tried running something like P-Bugger?

ew
Damn
Pbugger kills my audio and make the host go to overload.
If i choose the P-1 fix (threshold) the cpu overload goes away, but the P-2 fix doesn't do anything).

I am using a Intel Core Duo E4300 and i thought that The New intels was supposed to be free of that old denormal bug

If the CPU spikes ONLY when the audio has almost 100% faded away, then that sounds like a denormal. If it spikes while playing or not playing at all, then it's probably something different. The problem isn't really a 'bug' per se, it's just when the numbers get so small (towards 0) that it switches to a "double float precision" (I'm sorry, I'm not a coder, and it's been awhile since I looked into this, so forgive the bit of ignorance), which is much more CPU intensive. If you code around it, then the issue goes away.

Devon

D-Fusion · Post by **D-Fusion** » Fri Jan 04, 2008 7:31 pm

Thanks for the info DevonB

The cpu usage was maxed out when i tried the Pbugger, but if i played some notes the cpu usage went down and if i stopped playing it went all the way up again

So i guess that means that the C2D chips still have some issues with denormals.

The Pbugger also had 2 options to fix the denormal bug and the first p1-fix worked.

D-Fusion · Post by **D-Fusion** » Fri Jan 04, 2008 7:44 pm

Have you tested Adventus yet DevonB?

Integratron · Post by **Integratron** » Fri Jan 04, 2008 7:45 pm

My understanding is that problem occurs with multiple instances of any SE plug. I haven't tried it but according to IIrs, a workaround is to copy the plug and give it a different name. e.g alpha, alpha1, alpha2, etc.

Hope this helps.

LBN · Post by **LBN** » Fri Jan 04, 2008 7:56 pm

If chip manufacturers wouldn't make CPUs with more than one core then this wouldn't be a problem.

rasmusklump · Post by **rasmusklump** » Sat Jan 05, 2008 10:58 am

OK, I have a Core2Duo and the following VST(i) are working very well:

Commercial:

Virtual Guitarist 2
Plex
Warp
Korg Analog and Digital edition
Discovery
NI Komplete 4
Jamstix 1
TruePianos
Every UAD Plug
Greenmachineamp II
Melodyne Plugin
Papen Blue
Papen Predator

The following I have sold in the meantime, but they did work when I owned them on my C2D

EZdrummer
Nepheton
Drumazon
Arturia Analog Factory

Free:

Independence Free
Drumatic 2

I have not tried others...

DevonB · Post by **DevonB** » Sat Jan 05, 2008 12:02 pm

D-Fusion wrote:Have you tested Adventus yet DevonB?

Nope, but I justed put it on my USB key. Next time I get into my studio, I'll check it out. Keep bugging me.

Devon

Vst problems with duo-core?!