Random Q's: Low synth levels, midi & Latency, digital clipin

Basic Pitch · Post by **Basic Pitch** » Mon Sep 01, 2003 9:23 am

Greetings again all,

Well I was working with the card again last night and noticed a few odd little things. I guess i'll just number them to kepe them in order..

1) For some reason in either SFP or XTC mode all CW synths seem very low in level when compared to anything running native on my system, to compensate for 0db levels from natives I need to typically add about +15db to any CW synths to match native software is this normal?

2) I am finally starting to get my head around this whole SFP thing, so last night I went and downloaded some free/shareware synths, I loaded up KickMe (exelent 909 emulations!) and wrote a small 4/4 kick loop to try and record back thru the asio2 dest, here is the problemm, while running at 4ms at 44.1 thru ULLI I notice while comparing the kick to a metronome I am hearing very noticable latency to the metronome, now I can see hearing slight latency while tracking but one the line is written and then quantized why I am getting a delay in audio. To put it in simple terms, the audio generated by my card is off beat..

3) Digital clipping: Part of my reason for going with a CW card over say adding a TC Powercore to me previous configuration was that the CW card have 32bit Floating Point Processing DSPs, where the TC has I think they were 16bit fixed point. I noticed last night that my native stuff while playing louder than the starting level values of CW stuff was causing some channels to hit in the clipping range, oddly enough I was noticing distortion coming from (reaktor4) on a patch I created a use frequently, it was just really odd, I noticed some channels were clipping and I couldnt figure out why since these sounds typically play at 0db peak.

Any ideas gang? my most important one at the moment is the late midi signal, this one need to be corrected asap since it is currently making working in SFP mode useless

Cheers!

Specs incase you wonder:

Asus A7N8X (nForce2)
Athlon XP 2500+
1GIG Crucial PC2700 CAS2
(2x) WD 80G 7200 8mb CACHE HD
UAD-1
PowerPulsar II SFP3.1c
Midex(8)
Windows XP
Nuendo 2.1

marcuspocus · Post by **marcuspocus** » Mon Sep 01, 2003 12:06 pm

For your latency problem, the first thing that come to my mind, is : are you using [emulated] midi drivers in Nuendo or native one's?

Typicaly, you would need to copy a file from the [nuendo install dir]/Midi Filter (called ignoremidiport i think to the root of the install, and making sure you deactivate ALL emulated drivers from nuendo config.

As for the rest, i can't answer...

Basic Pitch · Post by **Basic Pitch** » Mon Sep 01, 2003 12:34 pm

The emulated ones, I need to figure out how to get the real drivers to show, ill give that a try and see if I can figure it out

Cheers!

darkrezin · Post by **darkrezin** » Mon Sep 01, 2003 1:08 pm

You may find the info you need here :

http://www.planetz.com/forums/viewtopic ... &forum=3&1

I can't vouch for it since I use Logic.

good luck

Mr Arkadin · Post by **Mr Arkadin** » Mon Sep 01, 2003 1:24 pm

i don't know Nuendo, but in VST there's a menu Options>Audio Setup>System where you can launch the SFP driver and see the latency it's running at.

As for your other problem, not too sure how you're mixing. Are you running your natives out of Nuendo via ASIO into an SFP mixer, then monitoring the SFP mixer out? Or are you mixing in Nuendo?