We propose a video-based method for guitar chords identification which is analogous to the state-of-theart audio-based method. While the method based on audio data uses the Pitch Class Profile feature and supervised Machine Learning techniques to “teach” the machine about the chord “shape”, we use as feature the approximated positions of fingertips in the guitar fretboard, captured using especi...

The Ghost has been developed to create a merger between the standard MIDI keyboard controller, MIDI/digital guitars and alternative desktop controllers. Using a custom software editor, The Ghost’s controls can be mapped to suit the users performative needs. The interface takes its interaction and gestural cues from the guitar but it is not a MIDI guitar. The Ghost’s hardware, firmware and softw...

Reviewers: Elena Wright – [email protected] B.A. (with honors) in Psychology (expected 2008) Victoria Thornton – [email protected] B.A. & M.A. in Psychology (expected 2008) Planning Assistance: Roz Grayson: Stanford University Department of Psychology Receptionist George Slavich, Ph.D.: SUPC Founder and Executive Director, 2001 Accounting Assistance: Pam Jahnke: Stanford University Department...

This paper describes a method for mapping a sequence of notes to a set of guitar fretboard positions (tablature). The method uses a Genetic Algorithm (GA) to find playable tablature through the use of a fitness function that assesses the playability of a given set of fretboard positions. Tests of the algorithm on a variety of compositions demonstrate an excellent ability of the GA to discover e...

In this study we have developed a digital guitar body mode modulation technique where the modulation can be controlled through one driving parameter. The filtering and modulation is done with frequency-warped recursive filters that have been implemented in real-time on a modern DSP processor. By changing the warping parameter the perceived size of the body can be controlled, by a pedal or autom...

Distortion is a desirable effect for sound coloration in electric guitar amplifiers and effect processors. At high sound levels, particularly at low frequencies, the loudspeakers used in classic style cabinets are also a source of distortion. This paper presents a case study of measurements and digital modeling of a typical guitar loudspeaker as a real-time audio effect. It demonstrates the com...