Polyphony Test "320 Voices"on P4 2.4.

[Bob Monk]

I\'ve just finished a P4 (2.4ghz 533) test on a friends un-optimized Windows 2000 PC.

2 instances of Kontakt in Logic 5.3 ....WAIT FOR IT!! 320 stereo voices images/icons/shocked.gif on a creative Audigy card.

This is more like it!!!

As i said before all without Filters and FX, just ADSR envelopes.

I set up a realistic Multi in each instance of Kontakt with voice limiting set to 24 on 10 channels,...they were all hitting 24 and going over slightly. More were added to the 2nd instance to make up a total of 320 stereo voices, all playing without a glitch!!

You get poorer performance when setting up a single channel to use more voices e.g I had 3 intruments set at the default 32 voices and the cpu meter peaked very quickly. 3x32=96 voices.

To get best performance limit each channels polyphony to what you actually need.


Cheers.

Bob.

[Haydn]

Good news and tips! I\'m getting ready to purchase the parts to build a P4 machine to run Kontakt on. What motherboard was used?

[Bob Monk]

My friend has an ASUS P4PE without RAID running 512 of DDR333. It\'s a great board.

When i upgrade from my PIII 800 i intend to get...

Gigabyte GA-8PE667 Ultra2.
P4 3.06Ghz.
At least 1024 meg of DDR333 Ram.
A Few Western Digital 40gig ata100/7200 8meg cache (system drive, record drive and sample drive).

XP Home or Pro?? I\'m not sure because XP Home doesn\'t run Dual processers and i think hyper threading is seen as 2 processors in the bios???


Cheers.

Bob

[KingIdiot]

are these numbers streaming or just poly count without streaming?

[Bob Monk]

It\'s all RAM based play back no streaming.


Cheers.

Bob.

[KingIdiot]

still great numbers.

Any count on streaming?

[Haydn]

I just ordered a P4 2.4 GHz with the ASUS P4PE motherboard w/raid. It was like $10 more than the one without the raid. Ordered 1 GB of DDR 333 memory. Only ordered one 80 GB WD 8 MB buffer drive. I will add another drive as soon as I can scrape up more money.

King,

What sound cards are you running on your machines? I may have to pick up another card for my older Giga machine.

[Chris Caouette]

I tried your trick of limiting the voice count, but the result was the same on the PC. I didn\'t try it on my mac. I am still getting better results on my mac than the PC, so I am a little hesitant to go build another one. I wonder why you would get peaks with a 32 note count per patch. I would think that if you were using a piano with the damper down that 32 wouldn\'t be enough.
I was able to get 93 voices (non DFD) from my g4 800 in standalone mode (as compared to 80 with DP running).

Chris

[KingIdiot]

Haydn

I\'m using Egosys stuff. Pretty cheap, and I\'ll prolly do my bouncing internally so I\'m not too worried about the AD/DA converters, I jsut want something for realtime playback

However I haven\'t had any probs with them.

[Simon Ravn]

320 stereo voices is nice and all, but really, the only thing that will matter for pretty much anything but drums, is how many voices you can get while streaming - and preferably with as small a buffer setting as possible. I am not sure but I think GS uses a 32k buffer. Imagine, changing that preload buffer to 64k, would instantly make you load up only half as many samples as you can with 32k.