

In Brazil, acoustics was taught in graduate programs, until the creation of Acoustical Engineering in 2009, at the Federal University of Santa Maria, an integral undergraduate program dedicated to acoustics, audio, and vibration (lasting ten semesters). It is taught, in general, as part of engineering, physics, or architecture programs, or even in graduate programs specialized in the theme. Furthermore, the design of new open-source plugins strengthens the free software community as a consequence.Īcoustics is a broad field of knowledge that extends branches all over the physics of wave phenomena, psychology, natural sciences, and engineering. The main goal of this project is to create an instrument that is cheaper than most commercial synthesizers but still provides professional quality sound.
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In this paper, some notion of how to make a plugin using an open-source language named Faust (Functional Audio Streaming) is presented as well. Zynthian allows for the addition of new plugins and other contributions by being an open development platform. Measurements of the synthesizers tested are presented, characterizing some of their capabilities, as well as how parameter changes influence signal frequencies and time responses. Depending on the MIDI controller’s size, that is, the trigger of the sound system, the device can also be a very portable instrument. It demonstrates how to make a workable instrument that can be fed by a power bank and combined with a rechargeable loudspeaker to allow for live music performance anywhere. This paper presents the assembly of a low-cost synthesizer on a Raspberry Pi 3B+ (Single Board Computer, SBC) using the open-source software Zynthian.
