Monday, 21 July 2014

BEA5 Improvisations


These recordings document explorations of frequency modulation and feedback using the modular system in BEA5. The two patches shown in the photo were used as a starting point for the improvisations. The mixer was also used to control the volume of various sounds and create feedback using a reverb send.

In particular, I enjoyed making subtle changes to the parameters and playing with the edges / thresholds of change within the patch, fine tuning and finding the sweet spots. Additionally, the feedback also creates an interdependent and unpredictable system, often resulting in noisy outbursts and intermittent rhythms/crackles.









Wednesday, 16 July 2014

Boweable Encoders



After testing the initial design for the boweable encoders, several variations were created in order to increase playability. More specifically, deeper notches and a larger diameter of 60mm were chosen, making it easier to make small adjustments with the bow. The larger diameter also creates a smoother, more continuous transition between the strings and encoder. In addition to this, different spacings, sizes and shapes for the notches have been explored.



During this process it was found that deeper notches with a square grip were more effective and provided the most grip/friction.

Furthermore, the potentiometer was replaced with an endless rotary encoder eliminating problems caused by the fixed range of the potentiometer. The endless encoder outputs relative values so direction, acceleration and amount of movement can be measured.



The encoder was mounted using a simple L-shaped bracket created using the 3D printer. Initially, the design was too weak and would bend when downward pressure was applied to the encoder. This was solved by adding a triangular support.





Wednesday, 2 July 2014

Supercollider Looper Improvisation




https://www.dropbox.com/s/cjw4pfigidhqyht/FM%2BguitarSupercollider.aif

This piece was created whilst testing and exploring FM oscillator and looper modules created in SuperCollider. The oscillator was mapped to various potentiometers using Max MSP to convert serial data from an Arduino to OSC. In addition to this, the computer keyboard provided control over the recording and playback of the loopers. A microphone, acoustic guitar and various other objects were used as audio input for the loopers.