KVR Audio

vignesh.vijay · Post by **vignesh.vijay** » Fri Dec 21, 2018 3:39 pm

Hi,

I am getting a lot of pops and pauses in the mixdown I did for a recent orchestral track i made in Cubase 7.5.
Does anyone know the reason why?

I have my buffer size turned to maximum-1024 , 48 khz
Multi processing and ASIO guard is ON.

Thanks

jancivil · Post by **jancivil** » Fri Dec 21, 2018 7:11 pm

Well, you're going to have to describe your system in detail. You're having poor realtime performance which is a multifaceted issue...

Here's one basic thing to consider: people with full symphonic templates tend to distribute the samples load to multiple computers, still. Using VE Pro on slaves over gigabit LAN ethernet. So the basic thing is you may simply not have enough muscle for the lifting.

It could be improved but people are going to need to know what's there.

jancivil · Post by **jancivil** » Fri Dec 21, 2018 7:22 pm

One specific question for right now: are you using Kontakt with multicore support inside of Cubase with Cubase set to multicore support?

2) is the performance of whatever machine this is more or less the same with ASIO Guard off?

Then, you'd have to consider what the major load problems are as far as plugins.
It may well turn out that no matter what you're going to have to render certain things or freeze tracks.

flugel45 · Post by **flugel45** » Fri Dec 21, 2018 8:41 pm

This might sound really obvious, but did you try it more than once -- say, after closing any other active tasks and a reboot?

Have you mixed down a similar-sized project before? How much ram do you have installed?

vignesh.vijay · Post by **vignesh.vijay** » Fri Dec 21, 2018 9:10 pm

jancivil wrote: Fri Dec 21, 2018 7:22 pm One specific question for right now: are you using Kontakt with multicore support inside of Cubase with Cubase set to multicore support?

2) is the performance of whatever machine this is more or less the same with ASIO Guard off?

Then, you'd have to consider what the major load problems are as far as plugins.
It may well turn out that no matter what you're going to have to render certain things or freeze tracks.

1. How do I know if I have set kontakt and cubase to multicore support?
2. The performance is more or less sane with ASIO guard turned off

vignesh.vijay · Post by **vignesh.vijay** » Fri Dec 21, 2018 9:10 pm

flugel45 wrote: Fri Dec 21, 2018 8:41 pm This might sound really obvious, but did you try it more than once -- say, after closing any other active tasks and a reboot?

Have you mixed down a similar-sized project before? How much ram do you have installed?

Yes I did .. Those dint work.

vignesh.vijay · Post by **vignesh.vijay** » Fri Dec 21, 2018 9:11 pm

I have updated the sample pool of each kontakt instrument as well to free up some RAM

jancivil · Post by **jancivil** » Sat Dec 22, 2018 1:17 am

vignesh.vijay wrote: Fri Dec 21, 2018 9:10 pm
jancivil wrote: Fri Dec 21, 2018 7:22 pm One specific question for right now: are you using Kontakt with multicore support inside of Cubase with Cubase set to multicore support?

2) is the performance of whatever machine this is more or less the same with ASIO Guard off?

Then, you'd have to consider what the major load problems are as far as plugins.
It may well turn out that no matter what you're going to have to render certain things or freeze tracks.
1. How do I know if I have set kontakt and cubase to multicore support?
2. The performance is more or less sane with ASIO guard turned off

Turn it on in Cubase, off in Kontakt is the usual MO.

vignesh.vijay · Post by **vignesh.vijay** » Sat Dec 22, 2018 2:01 pm

jancivil wrote: Sat Dec 22, 2018 1:17 am Turn it on in Cubase, off in Kontakt is the usual MO.

That did not solve the problem as well

I am using 32 Gigs of RAM and I run the project from internal SSD hard drive.

But I run the kontakt files from external hard drive though mostly ..

vignesh.vijay · Post by **vignesh.vijay** » Sat Dec 22, 2018 2:24 pm

But what i can see is that my Input ande output latency are way too high.. I am using 50 instances of Kontakt and 4 or 5 ominisphere and most of the tracks have atleast 3 insert effects.. one fab filter pro Q2, one Harrison UAD EQ ( I have UAD processor though) and one or 2 waves compressor.

thecontrolcentre · Post by **thecontrolcentre** » Sat Dec 22, 2018 3:03 pm

vignesh.vijay wrote: Sat Dec 22, 2018 2:01 pm But I run the kontakt files from external hard drive though mostly ..

That's likely to be the issue ... I would think using an internal SSD for sample streaming would solve the stuttering.

vignesh.vijay · Post by **vignesh.vijay** » Sat Dec 22, 2018 3:26 pm

thecontrolcentre wrote: Sat Dec 22, 2018 3:03 pm
vignesh.vijay wrote: Sat Dec 22, 2018 2:01 pm But I run the kontakt files from external hard drive though mostly ..
That's likely to be the issue ... I would think using an internal SSD for sample streaming would solve the stuttering.

.

I have quite a lot of Samples .. Its difficult to copy everything over.

Reefius · Post by **Reefius** » Sat Dec 22, 2018 3:29 pm

I've had stuttering issues with Kontakt when all my content was on an external HDD, even when connected via USB3. I purchased an external SSD, moved all my Kontakt content to it and all issues are gone.

The problem is not the read speed of a HDD, but the access time. Many Kontakt libraries consist of hundreds of small samples, which is difficult for a mechanical HDD because the reading head constantly has to jump around to load these samples. This mechanical movement takes too much time, resulting in audio dropouts. SSD's don't have this problem because there's nothing mechanical in them.

SSD's are very affordable these days so it's definitely worth upgrading.

jancivil · Post by **jancivil** » Sat Dec 22, 2018 5:07 pm

In the most general terms you have a high expectation from what you are working with for a system and probably need to rethink some of it.
4 and 5 Omnisphere instances alone uses a lot of CPU cycles. We haven't seen from you OS specs or CPU, clock, cores, how much RAM and so on.

BTW the drive has to be able to use USB3, older drives cannot so the transfer is USB2.

My latency there is with, I donno, same buffers as I've been using but VE Pro compensation has me working fine recording MIDI, it lands on the timeline fine. I have a brand new machine. Internal SSD.

If you want a big orchestration you're going to have to have the muscle to lift the heavy load and you probably just don't. That's life. Costs money, etc. You said the samples in Kontakt from external HDD "mostly"; if your internal drive is a mechanical drive do _not_ stream from this system drive. This is a known bottleneck from the beginning of time.

jancivil · Post by **jancivil** » Sat Dec 22, 2018 5:24 pm

In the meantime, you can try to override and increase the preload buffer size in Kontakt which will ease the load of your Direct From Disk streaming, in favor of using your RAM. But you need the RAM to do much of this. You should have 24, 32 gig of RAM or more. The big symphonic orchestra people like 64, 128 and a couple of slaves like this. It's a higher expectation. I wasn't even doing symphonic and I had to manage RAM with 24GB, I was maxing the machine out.

50 instances of... ?
We don't even know how much RAM you have.

pops and pauses in mixdown from Cubase 7.5