Voice to MIDI Pitch Converter Kit with Arduino Mega + LED
Voice to MIDI Pitch Converter Kit: Turn Your Voice into a Real-Time DAW Instrument with Arduino Mega
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Transform your vocal melodies into expressive MIDI instrument tracks without ever touching a keyboard. This advanced kit uses a MAX9814 microphone amplifier to capture your singing, then the Arduino Mega 2560 performs a Fast Fourier Transform (FFT) to identify the fundamental pitch in real time. The detected note is immediately encoded as a MIDI message and sent over USB, letting you trigger software synthesizers, samplers, or drum racks from your voice inside any major DAW.
What You'll Build
You will assemble a standalone voice-to-MIDI interface with on-board pitch visualization. Plug in the assembled unit, launch Ableton Live, FL Studio, Logic Pro, or any MIDI-compatible DAW, and your sung notes appear as MIDI data—perfect for creating synth lines, controlling virtual instruments, or experimenting with vocal-controlled music production. The 0.96-inch OLED displays the live frequency and corresponding MIDI note number, giving you direct feedback as you perform.
What You'll Learn
- Implement real-time pitch detection using Fast Fourier Transform (FFT) on an embedded microcontroller
- Master the MIDI protocol—construct and send note-on, note-off, and velocity messages over USB
- Condition analog microphone signals with the MAX9814 preamplifier for accurate frequency analysis
- Integrate an OLED display for live frequency and MIDI note monitoring
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Mega 2560 | 1 |
| MAX9814 Mic Amp | 1 |
| 0.96in OLED | 1 |
| 10kΩ Resistors | 5 |
| 100nF Capacitors | 5 |
| PCB Prototype Board | 2 |
| USB-B Cable | 1 |
| 9V Battery Snap | 1 |
| Soldering Iron | 1 |
| Solder Wire | 1 |
Why Buy This Kit Instead of Sourcing Parts Separately
| Factor | Sourcing Separately | Compoden Kit |
|---|---|---|
| Compatibility checks | You verify every part | Pre-tested as a system |
| Build support | Forums and scattered tutorials | AI companion trained on this exact project |
| Time to first working build | Days of debugging | Hours, with step-by-step guidance |
| Shipping coordination | Multiple sellers, multiple delays | One shipment from Bengaluru in 3-5 days |
Who This Kit Is For
This kit is designed for engineering students and music technology enthusiasts who need a hands-on project in real-time signal processing. It is ideal for B.Tech ECE/EEE final-year projects, hobbyists at IIT, NIT, VIT, or BITS exploring audio DSP, and participants in hackathons like Smart India Hackathon who must prototype vocal interfaces quickly. Familiarity with Arduino programming and basic soldering is assumed.
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.
What if I get stuck during the build?
Scan the QR code to open your AI build companion, which offers step-by-step troubleshooting for this specific circuit. You can also message us on WhatsApp—our engineers reply within hours.
Does this work with my DAW?
Yes. The kit appears as a standard class-compliant USB MIDI device, so it’s instantly recognized by Ableton Live, FL Studio, Logic Pro, Cubase, and any other MIDI-compatible software on Windows, macOS, or Linux.
Can I use it in a live performance?
Absolutely. The FFT-based pitch detection is tuned for low latency, so you can sing and hear the synth output in near-real time. For stage use, we recommend a stable 9V supply and a short USB cable to your laptop.
How accurate is the pitch detection?
With proper mic placement and calibration (guided by the AI companion), the system accurately captures fundamental frequencies within the typical vocal range. The OLED display helps you verify the detected pitch instantly, and the code can be fine-tuned to reject harmonics and background noise.
MAX9814 mic + FFT detects sung pitch. Sends matching MIDI note over USB to DAW in real time.
What's in this kit
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.
Other projects you can build
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items