KVR Audio

Jono-60 · Post by **Jono-60** » Wed May 30, 2007 6:51 pm

This is frikkin unbelievable!

Many thanks Togu, awesomeness.

ToguAudioLine · Post by **ToguAudioLine** » Wed May 30, 2007 10:11 pm

Modeler wrote:Crikey, that was a quick turn-around on the chorus. It was like "I don't think I can do a chorus... Oh wait, hang on... How's this?"

It was the eternal fight against aliasing and the stereo phase scope

Modeler wrote:Togu - have you thought about entering the developer challenge?

I have thought about it ...i think next year i will do that.

I thank you all for your awesome comments. There are still some tiny bugs to fix

stk · Post by **stk** » Thu May 31, 2007 9:00 am

~20% CPU usage here - on a p4 2.4, FLStudio 7, one voice.

rises to anywhere btwn 50 and 70% with multiple voices and chorus... Needs some optimisation, perhaps?

cheers, sk

cleverr1 · Post by **cleverr1** » Thu May 31, 2007 10:06 am

This is really cool - thanks!
Just one small thing - the LFO delay setting doesn't appear to work in Cubase SX 3.1.

Roger

ToguAudioLine · Post by **ToguAudioLine** » Thu May 31, 2007 10:25 am

stk wrote:~20% CPU usage here - on a p4 2.4, FLStudio 7, one voice.
rises to anywhere btwn 50 and 70% with multiple voices and chorus... Needs some optimisation, perhaps?

Hi sk,
its already optimized with assembler and approximations. But maybe i will find a way for other optimations. The filter uses(2xoversampled) 32 tanh approximations to get his characteristic sound.

On my Intel Duo Core 2.666 GHz it looks a bit better(Cubase process in the Task Manager):

Standalone Chorus: 0-2%
One Voice with Chorus: 2-5%
Two Voices: 4-7%

There is a CPU issue with long release times. This will be fixed in the next update...

Rangtangtang · Post by **Rangtangtang** » Thu May 31, 2007 10:36 am

Thanks, I can use this one....yes

ToguAudioLine · Post by **ToguAudioLine** » Thu May 31, 2007 10:47 am

cleverr1 wrote:Just one small thing - the LFO delay setting doesn't appear to work in Cubase SX 3.1.

In the current version, this delay works only for the filter LFO. I will fix that... i hope you mean the pitch LFO delay?

Thanks for this input.

cleverr1 · Post by **cleverr1** » Thu May 31, 2007 11:12 am

ToguAudioLine wrote:
cleverr1 wrote:Just one small thing - the LFO delay setting doesn't appear to work in Cubase SX 3.1.
In the current version, this delay works only for the filter LFO. I will fix that... i hope you mean the pitch LFO delay?

Thanks for this input.

Yes, it's just the DCO pitch that's affected.

stk · Post by **stk** » Thu May 31, 2007 11:39 am

ToguAudioLine wrote:
stk wrote:~20% CPU usage here - on a p4 2.4, FLStudio 7, one voice.
rises to anywhere btwn 50 and 70% with multiple voices and chorus... Needs some optimisation, perhaps?
Hi sk,
its already optimized with assembler and approximations. But maybe i will find a way for other optimations. The filter uses(2xoversampled) 32 tanh approximations to get his characteristic sound.

On my Intel Duo Core 2.666 GHz it looks a bit better(Cubase process in the Task Manager):

Standalone Chorus: 0-2%
One Voice with Chorus: 2-5%
Two Voices: 4-7%

There is a CPU issue with long release times. This will be fixed in the next update...

hmm okay, maybe denormalling, or a FLStudio problem? i dunno. Crazy cpu use was on the presets with little / no release time too.

cheers, sk

Jono-60 · Post by **Jono-60** » Thu May 31, 2007 1:31 pm

I use FL Studio too.

P4 2.66Ghz

12% single

30-40% 3 voices.

Usable but quite high for a single synth

ToguAudioLine · Post by **ToguAudioLine** » Thu May 31, 2007 1:43 pm

stk wrote:hmm okay, maybe denormalling, or a FLStudio problem? i dunno. Crazy cpu use was on the presets with little / no release time too.

I cant find any problem with FL Studio. I try to optimize the synth more...
U-NO-60 uses a seperate filter for every voice, like the original. This makes that the CPU rises nearly proportional to the playing voices.

grymmjack · Post by **grymmjack** » Thu May 31, 2007 2:08 pm

ToguAudioLine wrote:
stk wrote:~20% CPU usage here - on a p4 2.4, FLStudio 7, one voice.
rises to anywhere btwn 50 and 70% with multiple voices and chorus... Needs some optimisation, perhaps?
Hi sk,
its already optimized with assembler and approximations. But maybe i will find a way for other optimations. The filter uses(2xoversampled) 32 tanh approximations to get his characteristic sound.

On my Intel Duo Core 2.666 GHz it looks a bit better(Cubase process in the Task Manager):

Standalone Chorus: 0-2%
One Voice with Chorus: 2-5%
Two Voices: 4-7%

There is a CPU issue with long release times. This will be fixed in the next update...

are there denormal checks/fixes/workarounds? us p4 owners (i have a p4/1.9ghz at the moment) have probs with those.

novaflash · Post by **novaflash** » Thu May 31, 2007 2:41 pm

amd athlon xp 2200
host cpu % checked = chainer,
1st preset :
1 voice = 8%
2 voices = 15%
3 voices = 22%
4 voices = 30%

ToguAudioLine · Post by **ToguAudioLine** » Thu May 31, 2007 2:48 pm

grymmjack wrote:are there denormal checks/fixes/workarounds? us p4 owners (i have a p4/1.9ghz at the moment) have probs with those.

There is a workaround for denormalisation problems in the filters. I'm trying to improve the performance. May i can do some more assembler optimations

ToguAudioLine · Post by **ToguAudioLine** » Thu May 31, 2007 9:03 pm

Version 1.0.3 is out now, with important improvements:

Changes in Version 1.0.3

* CPU optimations (17%)
* Fixed denormalisation at long release times
* LFO delay works now also on the pitch

Tal U-NO-60