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HomeElectronicsThis Arduino Nano-based synthesizer can produce a variety of intriguing sounds

This Arduino Nano-based synthesizer can produce a variety of intriguing sounds


This Arduino Nano-based synthesizer can produce a variety of intriguing sounds

Arduino StaffJanuary ninth, 2023

Synthesizers have existed of their present type for a number of a long time now. In essence, they generate easy waveforms which might be then both added or subtracted collectively and modified by the usage of filters, envelopes, and modulators to regulate pitch, quantity, and a number of other different traits. As a consequence of their simplicity, many sorts of elements may be mixed to create them with all kinds of distinctive traits.

Constructed by Ignacio Ríos, his tackle the synthesizer incorporates an Arduino Nano together with a sequence of buttons, potentiometers, and an amplifier to supply sounds. It begins by taking a service frequency that’s modulated by a secondary oscillator, just like how FM radio features. From right here, 4 potentiometers modify how the service frequency responds to the modulated wave. One other 4 potentiometers change the assault, decay, maintain, and launch durations, all of that are learn by the Nano’s onboard ADC.

Every of the keyboard’s keys are actuated with a tactile swap that always will get polled for when it’s both pressed or launched. When urgent a key, this system updates the present word being performed and every of the 4 channels with the computed values from the aforementioned potentiometers. Lastly, the PWM pin’s pulse width is up to date to replicate the brand new worth.

After 3D printing a shell, the 17 keys for the keyboard, and some dials, Ignacio assembled the synthesizer collectively and was capable of efficiently play a sequence of assorted notes. To see this in motion, you possibly can watch Ríos’ YouTube video beneath or try his write-up on Instructables.

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