Four-Point (Three-Gradient) Linear Interpolation Extension for One Dimensional Data

Background In developing digital signal processor for Deepstomp (do-it-yourself digital multi-effect pedal platform), I have to optimize all computation in fix point math since the employed signal controller is just a cheap 32-bit processor with no floating point unit  (ARM Cortex M3 microcontroller). The most important effect especially for electric guitar is distortion effect, which can be simulated using sigmoid […]

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10 DIY Digital Stompbox / Effect Pedal Platforms Review

To start researching on DIY (do-it-yourself) digital  stomp box / effect pedal for the next project, let’s take a look at some popular platforms to compare their specifications and prices.  Here some of them in my list: Electrosmash’s pedalSHIELD UNO Electrosmash’s pedalSHIELD MEGA Electrosmash’s pedalSHIELD DUE Electrosmash’s Pedal Pi Openmusiclabs’s Stomp Shield Hoxton OWL Teensy Axoloti SlackDSP Sparkfun’s Proto Pedal […]

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