Guitar Synth Project - Changes

It's been a while since my last post about my guitar synthesiser project 'Strat-O-Synth'. In the past few days I've made some final changes to the project. To start with, it's now called 'Jag-U-Synth'. For quite a while after my early experiments with squeezing in electronics I've been working with having the Arduino controller in an external enclosure to be attached to the back of my Fender Jaguar.

Additionally, Arduino control is something I've scrapped. The controller pictured below is now an image of what might have been, as I have detailed in my accompanying documentation, my own limited electrical skills have meant that throughout this project, durability and quality of my  home electronics have not been up to the standards I might have hoped for. As a result, to make sure I still get the most out of this project that I can, with what I see as a small amount of compromise, I have decided to incorporate iPhone control once again. Whilst keeping the level of tactile expression given by using the guitar, having a controller that offers flexibility, ease of modification, expressive options, stability and reliability in a small lightweight device that has wireless functionality, using a customisable touch screen environment is arguably the more sensible option for a project such as this, at least until more experience in the various custom hardware options can be gained by myself. Had I had a longer time frame in which to work, I would have pursued the Arudino hardware further, it's still something I'll definitely use again in the future.

I'll be posting a video of the synth in operation as soon as possible, as part of the University assignment submission I'll be creating a short video demonstrating how the program works. Stay tuned for more news of my other current projects too, 2011 should be a busy year.


Images:

The hardware in its most complete state. As well as 3 potentiometers, a movable FSR was also part of the project, all with switchable control functionality.

How the original program used to look, tying in with the hardware controller.

The iPhone attached to the Jaguar, positioned for easy changing of parameters when playing.

The updated program GUI, designed to match the style of the TouchOSC controller.

Project Updates - October

Having started the first semester of my final year at university, I thought I'd just give a quick word about some of my ongoing projects.

Guitar Virtual Instrument

I've made some more progress with the guitar project, which I'm now tentatively calling 'Strat-o-Synth', although I have fallen a little behind schedule with the hardware stage. Despite making measurements beforehand, I appear to have cut the board that I'm attaching wires and other components to slightly too wide to fit inside the instrument, meaning I can't get the scratchplate fully back on. As a result, I'll have to tighten up the arrangement of the wires and components so that I can compact the board a tiny bit more!

Despite this space issue, the circuits are performing as I hoped they would so I should be able to post some photos of the complete hardware before too long and finally make some more progress with the actual software instrument.

Museum Installation - Charms Of The Sea

Along with my virtual instrument project, the same university module focusing on interactive and alternative interfaces also requires myself and other students to create an interactive audio-visual installation. In order to best apply our skills for this task, our lecturer has arranged - in conjunction with Mark Hildred of Apollo Creative and Scarborough Museums Trust - for us to create an installation for a brief set my the Rotunda Museum in Scarborough.

The piece will be based on the various charms collected by naturalist William James Clarke in the early 20th Century from all over the world, in particular those from the sea. This installation is part of the lead-up to an exhibition for the Cultural Olympiad inspired by his work, coming in 2012.

I myself will be working in a four-man team to create a section on 'Health' charms, one of four overall sections making up the installation. As part of the assignment, I will be required to blog regularly about both my group's and my own progress throughout the project. A link to this blog will be posted soon.

The installation will be open to the public at the end of November. 

Other Projects

After the expanded performance of 'Dinner In Three Movements', myself and other members of the collaborative music and contemporary dance group 'Flambé' have begun various preparations for our next piece. More information will be available in the coming weeks as well as a brief video documenting the creation and realisation of the September performance.

As always please feel free to visit my website and get in contact with me for any more information. Thanks for reading.

Guitar Virtual Instrument Project - Part 1 - Squeezing It All In

It's time for an update on my latest project! I have decided to work on both hardware and software of this project simultaneously in the run-up to next semester, however my primary focus is on completing the hardware controller side first. By doing this, the software can carefully be fine-tuned and adjusted without me having to worry about incomplete or changing hardware!

Since my last post I've acquired all of the components I plan to use in this project:

3 Potentiometers - to be multifunctional and control various parameters

1 Ribbon Potentiometer - for controlling assigned groups of parameters in unison

1 Force Sensitive Resistor - to acts as a pressure sensitive expressive control over parameters such as pitch-bending and filter cutoff

After getting hold of all of these parts, as well as various extra tools and guitar related items, yesterday I finally embarked on the modification of the guitar. This brings me to the next step of the project, solving logistical issues. The principal issue so far concerns space: there's not a lot of it. This can be seen in the photos of the Stratocaster cavity and existing components below:

Limited space in the control cavity.

Limited room around existing components.

Given that I've already made the decision to make this a minimally invasive modification, drilling into or sawing at the guitar body is a no-go, therefore careful measurement has been required so far to determine what I can get in there!

As it is, the Arduino Duemilanove simply won't fit easily enough into the control cavity, therefore I will be opting to mount it to the back of the guitar in some form of case. The wires between the Arduino board and the components that will fit into the guitar will run together out of an additional hole in the scratch-plate to the board. Inside the guitar will be a cut-down prototype board with any additional components attached - resistors etc. - which will be connected to the the power and the ground on the Arduino, as well as the main controls attached to the scratch-plate.

Having decided how everything will be integrated into or onto the guitar, I have started the task of measuring out where all the components will fit and begun attaching them. The very first potentiometer has been mounted on the scratch-plate and can be seen in the photos below. Over the coming days I will set to work adding the others, checking the suitability of their positions, then adding all the necessary wires. Stay tuned for Part 2.

The first potentiometer squeezed in (to the bottom-left of the topmost existing pot).

One down...stay tuned for further updates!

New Project - Virtual Instrument With Guitar Control

Hi there, I thought it was about time to make my first official post on my blog and outline my plans for a new project! Here goes:

Some hardware I'll be using in my new project!

For the final year of my degree beginning this Autumn, I've once again chosen a module that focuses on creating and utilising alternative and interesting forms of interactive music performance (or composition, art installations etc.). Following the success of my 'iTouch Synth' (Mac application available here!) I have again decided to design and create a virtual instrument, with an alternative method of control.

iTouch Synth'

 In the accompanying documentation for 'iTouch Synth', I stated that the limitations encountered in my previous computer music projects - the projects I have created in MaxMSP - had arisen due to a necessity to map my own creations to another person's i.e. my software patch to a their hardware controller. With this in mind, I found using the customisable environment of the iPod application TouchOSC liberating, given that I could custom fit my own controls to software patch.

I love my MIDI controller, but it has its limitations.

 As much as I enjoyed and was pleased using this customisable touch-screen control - which I will continue to use in the future - I couldn't help but long for the feeling of tactile controls! It was this longing and a hypothetical idea for expanding the capability of existing instruments that brought me to my latest project idea.

iPod Touch - too flat!

 At this stage, my basic plan is to have a virtual instrument - a synth or sampler, possibly a hybrid - that is played using my electric guitar - with frequency and amplitude tracking etc. Alongside this I plan to employ hardware controls for adjustment of software parameters. Rather than using my current MIDI controllers, iTouch or investing in a floor-controller, I've instead decided to have integrated controls on and within my electric guitar, using the open-source hardware Arduino.

My Arduino Duemilanove and breadbord.

So far my experiments have covered FFT frequency tracking and re-synthesis as well as endless breadbord prototyping of the hardware but the project is developing quickly! Stay posted here in coming weeks for information on this developing project!

Some of the components to be added to my guitar.