Noise Cancellation Prototype Design

I’m building a proof-of-concept noise-reduction module destined for consumer-grade electronics. My priority is an electronic schematic that delivers two core capabilities: active noise cancellation and echo reduction. The circuit must be small enough to embed in another typical product that will be mentioned later on as the project develops.

Here’s the flow I have in mind. First, we collaborate on the signal-processing topology—feed-forward, feedback, or hybrid—then translate it into a detailed schematic and PCB layout (Altium, KiCad, or your preferred EDA). Once the draft design is ready, I’ll need simulations or bench measurements that prove at least 20 dB attenuation in the 50 Hz–2 kHz band while holding latency under 10 ms; please include SPICE plots or MATLAB/Simulink data to back this up. As well as the ability to provide delta, alpha, omega, beta, and brain waves as a switch or an option. A concise bill of materials with readily available components is essential so I can move straight to prototyping.

Deliverables
• Complete annotated schematic (PDF + native file)
• PCB layout and Gerber/ODB++ files
• BOM with part numbers and expected lead times
• Performance report: simulation logs or lab screenshots demonstrating ANC and echo metrics

I’m happy to iterate quickly, so provide milestone files as you go—schematic first, then layout, then test results. If something in the passive realm could complement the active approach, let’s discuss, but passive isolation is not the main focus right now.

Ready to start as soon as you are.