The hardest part of my AI meeting app was the audio, not the AI

I'm building an AI copilot for live calls. I assumed the AI would be the hard part. It wasn't — it was getting clean audio off the machine. Here's what I wish I'd known. The constraint: no bot in the call Most meeting AIs join your call as a participant ("X's Notetaker has joined"). I didn't want that. The goal: capture both sides of a conversation with nothing in the meeting — just the local device. Two streams: Your mic (you) — easy. The system audio (everyone else) — the hard, platform-spe...