Bitstream 3X MIDI Controller

Posted on March 22, 2011 by John C.S. Keston

I just got a Bitstream 3X MIDI controller (BS3X), and have just started experimenting with it. This is a complex and fully programmable device, so I will need some time with it before I have learned the best way to incorporate it my setup. The easiest way to use it is in standard mode where no programming is required on the unit. Simply map the controls in the software you are using. However, what makes the BS3X powerful is the user mode where every assignable control can be programmed. A sophisticated editor allows the user to map these controls based on a long list of device parameters such as “Roland D50 Upper Partial 1 – TVF Cutoff Frequency”.

Just to get started with the device I used the standard mode and mapped the bulk of Roland MKS-80 parameters to it via the reKon Audio VST-AU MKS-80 editor in Ableton Live. For the VCF cutoff and resonance I used the XY axis joystick. This gave me one finger control over both of these parameters for very expressive control of the filter. I also mapped the VCF envelope LFO depth to the ribbon controller for another way to manipulate the filter. In one take using only three controls (the XY axis, ribbon, and a knob mapped to the LFO rate) I performed this drone.

MKS-80 XY Axis Drone

Synthesizer Noise Jam #5

Posted on March 21, 2011 by John C.S. Keston

This segment from an extended noise jam was recorded while my Super Jupiter was still in disrepair, although quite capable of creating dark and frightening experimental noise textures. I added some stereo imaging as well as delay and reverb to enhance the dystopian nightmare.

Synthesizer Noise Jam #5

Cross Modulated Microtonal Improvisation

Posted on March 9, 2011 by John C.S. Keston

I created this plucky microtonal patch by using the cross modulation on the Roland MKS-80 to effectively put the instrument into an instable, out-of-tune state. I mentioned in my previous entry that cross modulation is a form of frequency modulation or FM synthesis made famous by the Yamaha DX-7. My curiosity about this technique led me to an article in Sound on Sound from 1994 titled Exploring Analogue (Part 2) by Steve Howell. In the article Howell states,

“…take the output of one oscillator (Osc A) and feed it into the control input of another (Osc B). As the modulation level at Osc B’s input is increased, so its tonal quality becomes progressively nastier. In fact, in the absence of a ring modulator, cross-modulation can be used very effectively to create clangorous bell sounds and the like. But be warned! Because the tuning stability on old analogue synths leaves much to be desired, the oscillators don’t track too well, and a sound that is perfectly tuned on C3 may well have disintegrated by the time you get up to F3.”

On the Roland MKS-80 the tuning stability is pretty good, but it does use VCOs (voltage controlled oscillators), so they won’t track as well as DCOs (digitally controlled oscillators). This imperfection is part of what many of us find attractive about analogue synthesis, and what made it possible for me to produce this bizarre, out of key, yet delightful sound.

Cross Modulated Microtonal Improvisation

DSI Prophet 08 Presets

Posted on March 1, 2011 by John C.S. Keston

One of the things I’ve been doing with the Prophet 08 that I’m borrowing is playing through the presets. This is something I generally don’t like to do, but it’s a good way to get a feel of what an instrument is capable of. Many of the factory patches in professional synthesizers are exhibition sounds, programed to demonstrate the features of the instrument. Tonight I decided to record the process of playing through some of these presets for the purpose of sharing them here. Here’s one to start with.

Prophet 08 Patch Testing #1

Short Circuit Videos

Posted on February 26, 2011 by John C.S. Keston

Short Circuit – 021911 – Ostraka from Low-Gain on Vimeo.

Short Circuit – 021911 – Sputnik Viper from Low-Gain on Vimeo.

Short Circuit – 021911 – Square Wail from Low-Gain on Vimeo.

Short Circuit – 021911 – web dimension from Low-Gain on Vimeo.

Logan Erickson, also known as Low-Gain, organizes the monthly electronic music event called Short Circuit. As well as doing a great job with the event, he produces excellent, HD documentation with the direct audio signal from the house system synched up to the video. Above is his documentation from the February 19, 2011 event that I had the pleasure of participating in. Checkout his Vimeo page to see videos from former Short Circuit events and interesting experiments by Low-Gain.