One Guitar Band
An augmented musical instrument is a traditional acoustic or electric instrument that has been enhanced with digital technology in order to expand its expressive and sonic capabilities. The One Guitar Band is software for PC that augments the capabilities of the guitar, giving the user the ability to create a full musical arrangement consisting of drums, bass, as well as other melodic and rhythmic elements.
Augmented InstrumentsAcoustic Signal ProcessingMachine LearningSound Synthesis
Overview
The augmentation functions are based on the acoustic signal produced by the guitar itself, without requiring the installation of any additional sensor. The guitar sound is analyzed in real time by software running on the computer, and based on this analysis, the following functions are performed:
Drum generation: The system recognizes in real time percussive gestures produced by the user—either by tapping the body of an acoustic guitar or striking the strings of an electric guitar—and converts these gestures into drum sounds.
Bass generation: The bass generation function is based on an algorithm that estimates in real time the pitch of the note played by the user, as well as the timing and intensity with which the string is excited using the pick. These estimations determine the parameter values for generating a synthesized bass sound.
Modulation functions: These functions can be used to modulate the amplitude of sound layers that the user has previously created by playing the guitar in a familiar way.
One Guitar Band also incorporates a looper functionality, allowing the user to add different sound layers with each loop repetition. Additionally, it offers a wide range of controls through which the user can modify the interaction with the application, the sonic characteristics of the drums and bass, and also apply effects such as delay and distortion.
Video examples
Team
Principal Investigator: Nikolaos Stefanakis, Assistant Professor