One microphone gives you one sweet spot, and an hour of real work takes you out of it constantly. The simplest durable fix is two mics covering the two places your voice actually lives — and on a Mac, about twenty minutes of setup. Here's the whole thing.
Minute 0–5: choose your two positions, not your two mics
Watch yourself work before you place anything. Most people discover two home positions: head-on at the keyboard, and a second zone — turned toward another monitor, leaned back in the chair, or standing. Your first mic covers position one; your second mic covers position two. The hardware matters less than the coverage: a webcam mic, a spare USB mic, or a cheap lav as mic two beats an expensive mic aimed at a place you aren't. If you're picking new hardware anyway, the comparison guide covers the trade-offs.
Minute 5–10: place them like they're solo mics
Each mic should be placed as if it were your only one, aimed at where your mouth is when you're in its zone: 15–30 cm, front side toward you, slightly off-axis, off the desk surface if typing noise is an issue. The placement guide has the numbers. A two-mic setup with two bad placements is just two problems.
Minute 10–15: make them one microphone
Here's where most guides send you to Aggregate Devices and comb-filtering misery (why summing two mics of one voice backfires). The switching approach: install SoundMesh, let it install its virtual microphone (macOS asks you to approve it — it's removable), and let it see both mics. Speak from each of your two positions and watch it hand your voice to the closer mic. That handoff is the entire product: one mic live at a time, crossfaded automatically, delivered to your apps as a single device called SoundMesh Virtual Mic.
Minute 15–20: point your apps at it, once
Zoom, Meet, your dictation tool: set their input to the virtual mic (Zoom's dropdown specifics here). This is the last time you select a microphone — physical mics can reconnect, change, or be replaced behind it without any app noticing.
The test that proves it
Record 30 seconds of yourself in QuickTime using the virtual mic while deliberately moving between your two positions mid-sentence. Then do the same with just your desk mic selected. The single-mic recording fades and hollows the moment you leave its zone; the two-mic recording stays close and present the whole way. That difference is what your meetings and transcripts get from now on — from hardware you mostly already owned.