Proposals for Improvement to Achieve a Variety of Tone Changes

－Sound-making System Triggered by Body Movements－

Abstract

Tone modulation on an electric guitar is achieved by operating switches on the guitar itself, using an amplifier, or using multiple guitar-specific effectors. Each of these effectors has its own modulation function, and the player adjusts and sets the parameters using the knobs and buttons on the guitar to achieve the desired effect. Then, while playing, the player can apply the effect to any part of the song by turning the pedal on and off with his/her foot. However, there are limits to the effects that can be obtained with foot pedal operation, and fine modulation requires advanced techniques. Especially for amateur players, the operation itself is difficult. Therefore, the purpose of this study is to realize an intuitive and interactive tone change system triggered by the guitar player's physical actions (conscious or unconscious). Although the musical expression of the prototype has been evaluated to a certain degree, technical improvements to further increase the usefulness of the system itself are an issue for the future.