Algorithms for Guitar-Driven Synthesis: Application to an Augmented Guitar
Fabián Esqueda, Otso Lähdeoja and Vesa Välimäki
Companion page for a paper in the 15th International Sound and Music Computing Conference (SMC-18) Limassol, Cyprus, 4 — 7 July, 2018
Abstract
This work studies the use of signal-driven synthesis algorithms applied to an augmented guitar. A robust sub-octave generator, partially modeled after a classic audio-driven monophonic guitar synthesizer design of the 1970s is presented. The performance of the proposed system is evaluated within the context of an augmented active guitar with an actuated sound box. Results of the evaluation show that the design represents an exciting augmentation for the instrument, as it radically transforms the sound of the electric guitar while remaining responsive to the full range of the guitar playing gestures.
MAX/MSP Demo
Click here to download a MAX/MSP demo of the proposed guitar-driven synthesizer implemented using Gen~.
Video Examples
In both videos the sound radiates from the actuated guitar's sound box - no external speakers. Recorded with a Zoom recorder, no audio post-production.
Video No. 1
Description: Improvisation using the proposed guitar-driven synthesis system by REMOVING every second cycle in the input waveform (see Figs. 7(e) and (f)).
Signal-Driven Guitar Synthesizer on an Actuated Guitar - 1 from Otso Lahdeoja on Vimeo.
Video No. 2
Description: Improvisation using the proposed guitar-driven synthesis system by INVERTING every second cycle in the input waveform (see Figs. 7(c) and (d)).
Signal-Driven Guitar Synthesizer on an Actuated Guitar - 2 from Otso Lahdeoja on Vimeo.