low ULLi settings kill my Cubase

sidon · Post by **sidon** » Mon May 31, 2004 2:39 pm

Hi,

I have a big problem ,
when ever I set My Luna to have a ULLLi other the the lowest possible then My Cubase Sx start making Noises and run out of CPU realy fast ,
Using 2 vst and some effects kills it , is this Normal , what can cause this ,
I realy need some one advice ,

I use P4 1.6 Mhz cpu , with a luna 2 with 3.1c scope version.
I have 640Mb Ram

thanks alot
Sid

AndreD · Post by **AndreD** » Mon May 31, 2004 2:50 pm

i´ts a well known sx issue... unfortunately...

it´s not scope related by the way...

[ This Message was edited by: AndreD on 2004-05-31 18:39 ]

sidon · Post by **sidon** » Mon May 31, 2004 3:50 pm

I have not heard about it before ???!!!

Is there any way to overcome it ,
Or reduce it ,
It can not be that there are no people
that works with the Sx and Scope ...

Post by **garyb** » Mon May 31, 2004 5:07 pm

well, you should be able to use low latency but yes, cubase sx is quite a resource hog. make sure that you have optimized your pc for music. also, you can use this to further exploit what you have: http://www.fxfreeze.com/

ultimately the solution is more memory and a faster processor.

AndreD · Post by **AndreD** » Mon May 31, 2004 5:12 pm

or just work @ 7ms latency like most hardware synths

for mixdown, set ulli to 18ms...

best,
andre

by the way,
logic handles this problem better:
only the selected instrument works an a "real low latency modus".

[ This Message was edited by: AndreD on 2004-05-31 18:20 ]

AndreD · Post by **AndreD** » Mon May 31, 2004 5:28 pm

It can not be that there are no people
that works with the Sx and Scope ...

you will run into the same trouble with other cards...
i meet this problem with rme and maudio cards too.

sx needs an imrprovement in this point!!

there is a small performance tweak:
set the sfp priority to low (taskmanager/processes)

[ This Message was edited by: AndreD on 2004-05-31 18:45 ]

sidon · Post by **sidon** » Tue Jun 01, 2004 3:34 am

Hi all,
First of all thanks for answering.

secondly ,It seems that I only have CPU problems no Memory problems (looking at the performence indicators).
I can not use lower latency then the lowes which is 34ms .
I can not play short notes on some of the VSTs I use becasue of that !

I made all PC tweaks possible.

Also I have looked at the Freeze utililty and it seems that all is do is render the Inst to a audio and mute the channels - is'nt that so , at least for the freeze function in Cubase ?

I want to understand is there anyone using a Scope Platform with a worst latency settings with Cubase ,
Or all are using the lowest one ?

thanks,
Sid

Plato · Post by **Plato** » Tue Jun 01, 2004 4:02 am

I use SX2 with Pulsar 2 + SRB at 13 ms latency, which seems perfectly acceptable.....I don't notice any lag when playing VST instruments.
My system:
P4 2.8 Ghz, Intel D865PERL, 1 Gb RAM, Win XP Home in Standard PC mode.

marcuspocus · Post by **marcuspocus** » Tue Jun 01, 2004 4:15 am

Nuendo2 + Luna2 + Pulsar1Plus ULLI@3ms for trackingwith SFP or 7ms for mixdown in XTC.

Ricardo · Post by **Ricardo** » Tue Jun 01, 2004 8:47 am

In SX, in device setup/advanced, there is a check box saying 'use lower latency' or something similar. Uncheck this box and see what happens. I'm not at my own computer right now but you should be able to find it. This will set the priority to CW latency.
Just an idea

Post by **garyb** » Tue Jun 01, 2004 8:08 pm

3ms works fine here although i usually use 7ms. it's a setting that you've missed somewhere or a tremendous problem with your pc if you can't use lower than 34ms.... are you sure dma is enabled? did you install the chipset drivers when you first installed xp?

AndreD · Post by **AndreD** » Wed Jun 02, 2004 5:56 am

On 2004-06-01 09:47, Ricardo wrote:
In SX, in device setup/advanced, there is a check box saying 'use lower latency' or something similar. Uncheck this box and see what happens. I'm not at my own computer right now but you should be able to find it. This will set the priority to CW latency.
Just an idea

hi,
unfortunaltely, the performance gets worse if "low lantency" is disabled

AndreD · Post by **AndreD** » Wed Jun 02, 2004 6:00 am

On 2004-06-01 21:08, garyb wrote:
3ms works fine here although i usually use 7ms. it's a setting that you've missed somewhere or a tremendous problem with your pc if you can't use lower than 34ms.... are you sure dma is enabled? did you install the chipset drivers when you first installed xp?

hi,
you have a system with 4 athmospheres, 4 virtual-guitarists, 1 kontakt (16 stereo OUTS), 1 grand, some SIR, sonalksis plugs on channels AND audio-tracks (e.g.) runnig @ 3ms lantency with SX or NUENDO?

[ This Message was edited by: AndreD on 2004-06-02 07:03 ]

sidon · Post by **sidon** » Wed Jun 02, 2004 4:17 pm

Hi all,
thanks for the info ..

I have tried uncehcking the low latnecy it only slows my Pc ...?

I think I have installed my Windows correctly , but I dont know about the drivers , dont remember doing anything special ,
- how can I check if my drivers are good ?
- how can I check if my dmas are encabled?
I habe made all Pc tweaks for audio
perfornmence , at least all the important ones ...

I have discored that I had the Frutyloops enabled as a rewire application , and also removed the waves reverb I was using.
It made the cpu performence much much better ,did not know that the waves reverb is so demanding , I can now set the ulli for 13ms , though I still get many problems .

I should have thought 1.6Mhz p4 with a 640 M ram is enough for running more then 5 VST effects and 2 synths ...

Or is there some thing I miss ?

any way thanks again

Post by **garyb** » Wed Jun 02, 2004 5:08 pm

On 2004-06-02 07:00, AndreD wrote:
hi,
you have a system with 4 athmospheres, 4 virtual-guitarists, 1 kontakt (16 stereo OUTS), 1 grand, some SIR, sonalksis plugs on channels AND audio-tracks (e.g.) runnig @ 3ms lantency with SX or NUENDO?

i seriously doubt that....i don't have those programs...i do have stylus and sampletank. i can get about 5 instances of vstis, 4-5 vst plugs and 15 tracks without crackles with a 1.8ghz p4 at 3ms. getting rid of the romplers(like that word!) about doubles performance. freezing allows a major increase, of course. with logic 5.5.1 i can get about 20 vsts, 5 vstis and 20 tracks(gonna get a 3ghz soon)....

you can check dma in the device manager. the chipset drivers should have been provided with your motherboard although you can get them from your motherboard's munufacturer's website.

[ This Message was edited by: garyb on 2004-06-02 18:09 ]

AndreD · Post by **AndreD** » Thu Jun 03, 2004 9:04 am

hi,
what i want to say is:
it´s not hardware-related!
it is related by the sx/nuendo source-code.

it´s not normal that native performance depends on latency settings in that way!

best,
andre

at0m · Post by **at0m** » Thu Jun 03, 2004 9:09 am

It's not hardware related, but ASIO indeed. Not sure if it's Steinberg or Creamware that shows extra CPU use on lower latencies, but it sure uses some extra CPU cycles to run faster.

AndreD · Post by **AndreD** » Thu Jun 03, 2004 11:49 am

steinberg could do it just like emagic did:
economy of cpu-usage

i´m shure, there is a big potential

[ This Message was edited by: AndreD on 2004-06-03 18:36 ]

Scott Majestik · Post by **Scott Majestik** » Thu Jun 03, 2004 12:48 pm

On 2004-05-31 18:28, AndreD wrote:

It can not be that there are no people
that works with the Sx and Scope ...

you will run into the same trouble with other cards...
i meet this problem with rme and maudio cards too.

sx needs an imrprovement in this point!!

there is a small performance tweak:
set the sfp priority to low (taskmanager/processes)

[ This Message was edited by: AndreD on 2004-05-31 18:45 ]

This seems to have solved a few of my problems.

Is there anyway to set this automatically so it is at Low whenever windows boots up ???

It saves me from opening up taskmanager and seting SFP.exe priority to low everytime.

AndreD · Post by **AndreD** » Thu Jun 03, 2004 5:17 pm

http://www.planetz.com/forums/viewtopic ... 80&forum=1