VCVRackTutorial: Using Multiple Waveshapers to Drone.

Making drones is fundamental to modular synthesis, as it removes pitch from the equation, and makes piece all about timbral texture. This started out as a simple test of various waveshaper modules.

http://cornwarning.com/chaircrusher/Chaircrusher-ShapedDrone.mp3

The patch is here: http://cornwarning.com/xfer/VCV/ShapedDrone.vcv

The core of this patch is using waveshapers to generate harmonically rich distortions of the original sine wave. Since the different waveshapers get mixed, and because they’re all processing a signal of exactly the same frequency, they interfere and reinforce each other. The sound changes restlessly and chaotically over the course of the recording, and you occasionally get ghost notes made when more than one overtone series collides.

The audio signal flows from left to right basically, feeding 4 waveshapers that get mixed and modulated by the keyframe mixer. This is a really good beginner’s patch.

I’ll describe the patch left to right. I liked that it fits mostly in one row.

LogInstruments Precise DC Gen

The DC Gen is used to choose a constant note to send to the fundamental oscillator.

Vult Caudal Mechanical Chaos Source x 2

This module is based on modelling a triple pendulum. Each output represents an arm in the pendulum’s position and velocity. Basically it sounds random but there are predicatable — if chaotic correlations between each output. These are hear to screw with the parameters on modules to the right.

4 x Different Waveshapers

I wanted to check out various waveshapers — the Lindenberg VC Waveshaper, The Vult Debriatus, Lindenberg West Coast VC Complex Shaper, HetricCV Waveshaper . They each have their controls modulated by the Caudals.

Audible Instruments Keyframer/Mixer

The Keyframer is being used a mixer, but it’s unique in that you can record a bunch of different frame volume combinations (as keyframes) and then morph between them, either manually (with the big knob) or by modulation, also coming from the Caudal.

NYSTHI 4DCB

This is a DC Offset remover, and it’s there because waveshaping can introduce a DC Bias that messes with a signals apparent volume (and also messes with speaker cones). This is used between each waveshaper and the keyframe mixer.

Southpole Balaclava Quad VCA

To introduce some variety in the patch, the VCAs are used to modify the level of the signal. This is tuned to be mostly a slow throbbing.

AS DelayPlus Stereo Fx

What’s a modular patch without some delay or reverb? This stereo delay is tuned to long delays (on the order of seconds) so that the live signal is combined with the delayed signal. This adds some fat to the signal, and also introduces stereo panning.

Southpole Balaclava Quad VCA + Vult Knobs

This is just a way to do a master volume knob.

Paulstretch for OS X — the Justin Bieber Edition

GO HERE FOR LATEST AND GREATEST

Well, someone may — or may not — have posted a slowed down version of Justin Bieber’s “Love U” and as a result my janky little blog is experiencing a 25-fold bump in traffic. I’m hoping the fine folks at Midphase don’t mind — I have an ‘unlimited bandwidth’ account, but I think it’s only unlimited until you start saturating their net connection.

Anyhow, if you’re here looking for Paulstretch, get it from this post — the new build can actually load MP3 files due to a new version of one of the libraries it needs. If you’re still on a Power Mac, go here.

The build scripts are Here, but don’t even bother unless you are an actual programmer, because I can’t troubleshoot your problems for you. What I wrote worked perfectly from a standing start back when I wrote it, but library versions change, source code archive links get moved, and you may not have all the build tools on your machine.

Let the stretching begin!
EDIT: I listened again to the example I put up back when I first started playing with Paulstretch and I still really dig it. It’s the Bitone Troupe’s cover of Bj√∂rk’s “All Is Full Of Love.”

[audio:http://www.cornwarning.com/xfer/BitoneTroupe-AllIsFullOfLove-Stretched.mp3]
http://www.cornwarning.com/xfer/BitoneTroupe-AllIsFullOfLove-Stretched.mp3

PaulStretch 2.0 — OS X PPC Build!

GO HERE FOR LATEST AND GREATEST

My PaulStretch build was unfortunately Intel-only, and probably would only work with OS X 10.5 or later.

Now, a friend who shall be known (at his request) as “the anonymous benefactor” has done the build on a G5 PowerMac, running OS X 10.5.8:

http://www.cornwarning.com/xfer/PaulStretch-OSX-PPC.dmg

This is supplied with no warranty, express or implied, and no doubt, it will NOT run on some PowerMacs. I have no idea how binary compatibility works OS X and the PPC chips, except that it does not, as Apple is wont to say “just work.”

Again, if you download either of the disk images and they do not work, feel free to follow these instructions in order to build things for yourself. According to the aforementioned Anonymous Benefactor — the instructions do, in fact “just work.”

Paul Stretch (extreme audio time stretching) for OS X to download!

GO HERE FOR LATEST AND GREATEST

It has links to a more recent build, the PPC build, etc.


Yesterday I couldn’t spell OS X Developer and now, I are one!

With some help from my friends on the CMake mailing list I finally got a running standalone OS X application built out of the Paul Stretch source. As I wrote yesterday, it’s free, it’s easy, and it makes hours of freaky soundscapes out of any audio file.

Except for mp3 files. If you try and load an MP3 file it locks up. Oh, and it wants WAV or OGG files — as far as I know it can’t load AIF files. But it’s free, right?

http://www.cornwarning.com/xfer/PaulStretch-OSX.dmg

Repost: Free Program for Extreme Time Stretch

Sorry for repost, but apparently, this post got trashed in my Blog SQL database. Eff me silly, computers suck. Apparently the post showed up long enough for MKB to comment on it, but then went to the great bit bucket in the sky.

The quaintly named Paul Stretch is a program that does extreme time stretching of digital audio. It’s free and open source, so anyone can try it. I even was able to build it on OS X, but not yet in a way that permits redistribution — you can do a lot of Unix-style programming on OS X and never build up the knowledge that building a native application requires.

Anyhow it turns any audio into pleasant ambient textures. Exampla gratia:

Bitone Troupe “All Is Full Of Love”
[audio:http://www.cornwarning.com/xfer/BitoneTroupe-AllIsFullOfLove.mp3]

The first 30 seconds or so, timestretched to several minutes

[audio:http://www.cornwarning.com/xfer/BitoneTroupe-AllIsFullOfLove-Stretched.mp3]

If it isn’t hardware, don’t fake it up in 3D Studio

I’m linking to this product without any particular enthusiasm Black Magic Loop Creator.

What irks me is this image:

How many times have I seen a pic like this and thought ‘ooh cool!’ only to find out it’s imaginary? Just fucking stop it!

What’s even worse, when I first see certain pieces of actual hardware, (e.g. NI Maschine) they look like 3D Studio renderings, or actually, the pictures they release of the REAL objects are FAKE 3D Studio renderings! It makes my brain hurt.

Universal Audio UAD-1E $99 CHEAP

UAD-1e Express Pack at AudioMidi.com for $99

Apparently Audiomidi isn’t the only place with this deal, but it’s an insane price. It lists at $499, and Audiomidi regularly has them at $299. At that price, you can buy more than one, and the drivers support up to 4 in one system.

This is a SHARC based hardware accelerator for running VST audio plugins. I tested both a UAD-1 PCI and a TCI Powercore for Grooves Magazine years ago and thought the UAD-1 was killer.