VST Oversampler 1.4 (with SSE/3DNow! support)

[novaflash]

Thanks Chris for the SSE/3Dnow support!

[Lagrange]

So Chris I'm wondering, if I wanted to use it to apply to prerecorded audio, could I theoretically use something like G gain or Free G wrapped in Oversampler ?

Would this work?

Edit:

I will try this in a modular host to see if it works and let you know my findings..

L

[RunBeerRun]

I downloaded the 1.4 version yesterday, Feb 6. Works in Savihost but crashes Reaper. I've tried it on a few plugs, crashes Reaper every time.

I still have 1.4 beta, and I'm using that successfully in Reaper.

[Lagrange]

So I tried this out and it looks like it doesnt work ..

This is the order:

Straight Synth, Synth thru G Gain.os.dll, Synth.os.dll (Circled)
Click for big

Heres the audio

There is a tiny difference between the 1st and 2nd recording but it is no where close to the 3rd (synth.os.dll).. So again I ask, is there a way to run this thru either a VST thru effect or maybe even a compressor, limiter, eq, or transient shaper to apply to audio in an editor or say the master bus?

I will continue to try it elsewhere..

This leads to another question.. Will it work with a sampler?

L

[Chris Walton]

Sorry, Lagrange, but what you want to do doesn't work (or really make sense ).

The oversampler only works on what's caused by the actual plugin it's oversampling. If the aliasing and artifacts etc. are already there when the oversampler gets to it, then there's nothing it can do about it. This isn't a limitation of the oversampler per se, but rather a limitation of the digital signal processing theory behind it (once the aliasing is there, you can't remove it).

I downloaded the 1.4 version yesterday, Feb 6. Works in Savihost but crashes Reaper. I've tried it on a few plugs, crashes Reaper every time.

I still have 1.4 beta, and I'm using that successfully in Reaper.

This is really odd, as I tested in Reaper before I released it. Can you give me the names of a few freebie plugs you're trying it with that work with 1.4b1 but not with 1.4?

[RunBeerRun]

Yeah-give me 5 minutes, I'll test 4 or so common plugs, get back to you.

I already tried (unsuccessfully)with CeTone2 synth, the latest beta version of it, and Retro Sampling Digital Tube plug.

I'll try a couple more, it's the most recent version of Reaper.

[Lagrange]

Sorry, Lagrange, but what you want to do doesn't work (or really make sense ).

The oversampler only works on what's caused by the actual plugin it's oversampling. If the aliasing and artifacts etc. are already there when the oversampler gets to it, then there's nothing it can do about it. This isn't a limitation of the oversampler per se, but rather a limitation of the digital signal processing theory behind it (once the aliasing is there, you can't remove it).

So help me understand herem, would it then work in theory on a sampler that uses synthesis as a part of its engine (with minimal aliasing)? Vice versa would it work on a synth that uses samples as the audio source (ie certain wavetable synths)?

L

[RunBeerRun]

Good news, they all work now.

I just tried CeTonesynth2, AlphaCm, Atlantis, basic64, and you wa shock maximizer. They all worked fine in Reaper.

[RunBeerRun]

Bad news now-the ones I just listed above, now all crash Reaper and don't load. Back to the beta version.

Edit: I restarted my computer, tried the ones with the new oversamp hosting it, and they crashed Reaper again.

[Lagrange]

Ha!

I got it to work by wrapping eXTE 1.41 in Oversampler and then opening my synth/sampler/audio of choice into it. So back at you.. YES!!

EDIT:

This is great! I Oversampled several synths together in eXTE and recorded them down with no crashes or CPU problems.. Still have to try out audio etc.. Cant wait..

L

[TheSteven]

Ha!
I got it to work by wrapping eXTE 1.41 in Oversampler

Maybe I'm missing something, but I think you're wasting your time.
As Chris said

The oversampler only works on what's caused by the actual plugin it's oversampling.

So, to borrow a phrase from my neighbor, you're try to sift the flour after the bread has been baked. In other words eXTE 1.41 is handling sounds the VSTi's have already made not generating them itself. The aliasing is already 'in' before eXTE 1.41 gets it.

edited: for typos

[Lagrange]

You understand that in the last example I've NOT wrapped the VSTi in Oversampler right? But eXTE itself? Again I'm new to this plugin and just trying to see what else I can do with it. I could be wrong, thats why I asked in the 1st place..

Heres the setup that worked for me. I tried several synths at the 'synth.dll' level.

Heres what I'm going to try next. If this works then what I was saying is correct cause I can essentially plug anything in at the 'host' level. Am I right?

Just trying to wrap my head around it tis all.. Any help is appreciated..

Tnx guys.

L

[TheSteven]

You're overthinking things...

You have to minimize the aliasing at the source, at the time the audio is generated. I.E. at the plug-in creating the sound.

Once the audio is generated and the aliasing is in the audio, oversampling cannot remove it.

Just because you can find a way to insert the oversampler into the signal chain doesn't mean that you've actually accomplished anything but complicating the signal flow. You may even defeat your host's ability to control the automation of the synth plug-in. Anyway my last 2 cents on this, good luck.

[Chris Walton]

Lagrange, TheSteven pretty much stated as good as I could have. It works in the first diagram because the Synth is oversampled (through eXT), and it doesn't work in the second diagram because the Synth is outside of the oversampler box. That's pretty much the limitation there.

RunBeerRun, I have a sneaking suspicion. Post/PM me all the gory computer details, and also which Message Box the beta pops up, please.

[RunBeerRun]

With 1.4 beta(older version), there is a popups saying SSE detected. With the new 1.4, never gets that far, just crashes Reaper, in Savihost there is no popup for the new version, it just loads normally.

My computer: Gateway E2100 desktop
-2.6ghz
-1536mb memory
-Win XP SP2