Capture 360� Spatial Audio - Your ESP32 Ambisonics First-Order Encoder 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.

This isn't a toy microphone. You'll construct a professional four-capsule Ambisonics array that encodes the complete first-order soundfield - W, X, Y, Z - directly on an ESP32. Use it to capture VR films, interactive installations, game audio, or live concerts where direction and immersion actually matter.

What You'll Build

By the end, you'll hold a calibrated, self-contained B-format microphone that outputs four analog channels via 3.5mm TRS jacks. Hook it to any field recorder or audio interface, and you're recording spatially. The DSP runs on the ESP32's dual cores, computing the encoding matrix in real time from four INMP441 digital mics, then driving the MCP4728 quad DAC for simultaneous analogue output.

What You'll Learn

• Derive first-order Ambisonic weighting coefficients from a tetrahedral or square mic arrangement
• Stream four I2S microphone channels simultaneously on the ESP32 without buffer underruns
• Translate B-format math from theory into C++ code using fixed-point optimizations
• Bias and level-shift DAC outputs to match professional +4 dBu line levels

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

You're an audio engineering student at a film institute, a B.Tech ECE final-year student pushing a spatial audio capstone, a hackathon team building immersive demos for Smart India Hackathon, or a professional maker who needs a reliable B-format encoder without paying three times the price for a pre-assembled mic. You're comfortable soldering, debugging firmware, and interpreting DSP fundamentals - and you want a build that actually works the first time.

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.