Build a Real-Time Convolution Reverb: Arduino Due Audio Processor Kit

Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.

Turn any dry audio signal into a lush, spatial experience using the exact acoustic fingerprint of a concert hall, studio, or cathedral. You build a complete convolution reverb processor: a microphone captures live audio, an Arduino Due runs FFT-based convolution on an impulse response read from an SD card, and a DAC outputs the wet signal to a speaker — all in real time. It is the perfect hands-on project for audio DSP students, STM32/PSoC upgraders, and sound artists who want to understand FIR filtering at the sample level without buying expensive rack units.

What You'll Build

A standalone box that takes mic-level audio, applies any user-loaded impulse response (captured from real spaces or downloaded libraries), and plays the reverberated result instantly. The kit includes a soldering iron and all components, so you’ll assemble the full signal chain on prototype boards inside an enclosure. The result is a portable desktop reverb unit that demonstrates spectral multiplication, windowing, and overlapping blocks — all on a Cortex-M3 microcontroller running at 84 MHz.

What You'll Learn

• Implement overlap-add convolution with Fast Fourier Transforms on Arduino Due’s ARM core
• Interface a MAX9814 electret mic amplifier and a 12-bit MCP4725 I²C DAC with precision timing
• Stream impulse response .WAV files from an SD card via SPI while managing real-time audio buffers
• Assemble, solder, and debug a multi-module analog/digital audio system on prototype board

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

Advanced hobbyists comfortable with digital signal processing in C/C++ and soldering, B.Tech ECE/EEE students tackling audio DSP semesters or Smart India Hackathon challenges, and IIT/NIT/VIT/BITS engineering teams building audio effects devices. Musicians and sound designers who want to learn how reverb is computed at the circuit-and-code level — and who are not intimidated by assembling their own unit — will find this kit a unique gateway to embedded audio.

Built and Backed by Compoden

Every Compoden kit ships with an AI build companion trained on this exact project — accessible via a QR code on the box, with WhatsApp and email backup. We've spent 10 years building projects for makers, schools, and institutions across India. If a part fails because of a manufacturing defect, replace it free within 7 days.

Choose your assembly option:

• Soldering Kit — 25W soldering iron, 60/40 solder wire, flux, and small perfboard for permanent assembly.
• Breadboard Combo — 800-point full-size breadboard with 65-piece jumper wire pack for solderless prototyping.