Asio Crackeling

[dest4b]

so ..

i got same results with the dell and the AMD.

crackels.

with ableton and reaper..

im wondering about that if i go to abletons audio setting with Ulli at 3ms and select test-tone
with 80% CPU i dont get any crackels.. but if i play a Wave file with 0% cpu i got crackels.

same as on the dell it crackels a extreme if i press WIN+D or minimize ore maximzie a window
or if i scroll around or if clicking on a new scene in ableton.
.. but here on the AMD i have not the GFX card shared with the Pulsar.

[Fluxpod]

I see scope is slaved.Are both s/pdif cables connected?What if scope is Master without the external device?

[Eanna]

Have you changed Power Settings to Always On?

[Eanna]

What is serving up Clock to Scope? Are you quite sure that crackling happens with graphic events? Like scrolls etc
How about when you mouse-over icons on the desktop?

[dest4b]

so again .. a bit testing..

spdif is now reconnected.
ADAT sync is superp i have no crackeling peaks on my mixer ..

i have tried sysinternals taskmanager. there are no spikes.. ableton uses 12 to 25 cpu and no other processes are
to find with it. Also checked Disk I/O and so on..

under XP it is much better as before with win7.

but that is not really fine in the moment.
Yes and its screen related i think .. as i disabled some tasks a little tooltip
pops up from the taskbar that the computer has no antivirus. ( there is non antivirus installed. )
and this little box causes crackeling.. if i move windows around .. ( only lines becuase fancy GFX is disabled )
it crackels..

in the moment there is only one pulsarII in the system .. :/

i hope i will find the crackler !

[RecS]

i hope i will find the crackler !

dest4b you go on a feat
It causes respect for yours to persistence
But I shall notify you - many from those who "talk here not much" spent in fight with "crackler" "your time of x10" time and didn't come to good luck
Everything came to an end with selection of motherboards or leaving from S|C!
I from those who else hope and trusts (to me there come tomorrow 2 motherboards of a miscellaneous like MSI and AMD - since ASUS on anything isn't suitable)
But my many friends left this fight ....

To me it is thought that your Pulsar is sick (such happens and it needs to be shown to the doctor)
2 option - motherboards

[dest4b]

thats what i have done a long time: fighting against crackeling without posting.

But i dont want to sell my pulsars. It should be my connection to the Hardwareworld.
with ADAT for recording from: Spectralis VIrusTI Xbase Blofeld Micron and FX.
Also it should be my very flexible FX rack for the Hardware and Software.
And of course i like the s|c Synthies.

So im very frustrated. With more then 6-4 ms it is not really fun to work with the
external Hardware. And with less than 10-12 ms i have crackelings.

I dunno what to do ... especialy because for me there is nothing what seems to
cause the problem now. Or im just stupid
On the "Old" PC i bought 2 month ago with Intel i had the same, but VGA was sharing a interupt with one board.

The only things i have used form the other PC Is the SSD and the Pulsarcards.
Are there any problems with SSDs ? But i have seen in the Sysinternal tools that there was no I/O at the harddisk as it was crackeling.

What is really mad in my eyes is that the Ableton Latency CPU test .. works without any
problem. 80% CPU @ 3ms and no crackels. I can do what i want .. Minimizing Maximizing scrolling moving .. nothing crackels

But playing a track even with 10% CPU @6ms i got crackels if i click somewhere or scroll in a window, or minimizing and maximizing windows.

It is happens with ADAT .. SPDIF and even with Analog out. As you can hear it is even in the digital part because i have recorded the short sample directly from asio to Wave dest.

what could cuase this? Could this be a hardware fault ? Maybe some capacitors on the Scope board are sick.. but .. why not with emulated 80% CPU load ? And why it is in the Digital routing of the Pulsar ? So i dont think its a broken board.


Are there any ableton users here ?

[garyb]

yes, if the SSDs are not properly configured, they can cause crackling on playback.

[Eanna]

To be clear, ASIO4ALL has the same issues as Scope (crackling), when latencies are a little higher than Scope's ASIO? I.e. you get slightly lower latencies with no crackling with Scope when compared to ASIO4ALL.

This suggests that you system (for whatever reason) cannot handle latencies under that cutoff point. And it will not matter whether you use onboard audio with asio4all, Scope, or some USB interface or other.

But the latency at where there is no crackling is too high for you?

Is my understanding/interpretation correct?

(Personally, I wouldn't notice latencies of 12 ms, but as they say, ymmv).


I'm an Ableton user, have run Scope on two PC's (an early dual core, and now a modern fast Xeon), and have had no issues with crackling. My current desktop, with the Xeon, is running Win7 32-bit with an OCZ Agility SSD as a System Drive. My previous PC had crackling issues on a variety of USB interfaces (due to agressive reduction of latency), problems with Firewire interfaces, etc., but Scope was solid from the start at a latency figure that worked fine for me...

I do remember having DPC spikes on the older PC when I rolled the Mouse over Desktop Icons, when I was running the TC Electronic Konnekt 48 firewire interface. The solution, as it turned out, was to put Windows into "Best Peformance" mode in the Power settings (strange but true!). Sounds a little bit like your "graphic redraws" issue maybe?

[astroman]

imho (as mentioned) the graphic engine of Scope is a major hog of resources
dragging a mixer window across the screen yields up tp 30% CPU load on my XP System (CoreDuo)
on the older AGP based P4 even 100% is possible
I'm pretty sure that occasional clicks on my XP system were in sync with meter activity on screen.

but I have no experiences with Ableton, but I wouldn't underestimate such 'peanuts' as (Scope) meter activity
there may be context switching involved between the 2 applications and most likely different graphic subsystems

cheers, Tom

[dest4b]

thanks for all replys.

this evening im going to play again with the PC..
I will check the GFX again ..
It does not only happens if i move a scope mixer.
It also happens if i move a explorer window or the system information or the taskmanager.
THe Fancy gfx is off so i only move a small gray frame .. it crackels.

In the young times of my scope it was in a P4 1Ghz with DDR1 and AGP matrox G450 and PCi G450 with ( in the best times ) upt to 4 CRT Monitors. And as i remember it wasnt crackeling.
But i used Logic 4.5 in that time and only the Scope synthesis to make tracks.

Now it is a mixture from VST and Scope.
ONe more question. How are the ULLI settings of the Users here with nearly same setup ?
VST synthesis .. ASIO .. Scope ? maybe ableton ?

THe problem for me is with the higher latency that i can not work with my external hardware.
Because if i use the Spectralis it will be very hard to mix SPectralis with ableton. With 3ms it is very well to work with both at the same time .. but if i go up to 12ms .. i hear that it is not in timing.

maybe it is a unreal dream from me to sync my hardware with a DAW .. but i like this dream.

PS: the SSD is installed as it should .. manually created partition with partedit and a blocksize of 1024.. AS SSD shows me a green light .. i asked if there is a generally problem..

[garyb]

what vsts and vstis are you using?

[dest4b]

IN the two last songs since scope reanimation ..

ABleton Suite - analog - operator and sampler. nothing else .. as written before.
I also own and use Massive. but i dindt use it here. Also it doesent crackle more
if it is active.

But the crackels also appears by playing a wav only file in ableton.. so it isnt caused by
any VST

[garyb]

well, it is either a Live setting or a windows setup issue(assuming that you have a proper pair of ASIO modules in Scope). the Scope ASIO driver does work properly.