this post was submitted on 21 Feb 2025
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Most videoconferencing software these days has dynamic gain to try to accommodate people using non-ideal microphone placement. See if you can turn that off. Audio pressure decreases pretty drastically with distance. Using 10 cm as your microphone to mouth distance, 2.5 m as the distance from your wife's mouth to your microphone, and 60 dB speaking volume, your voice is 30 dB louder than your wife's. That should be enough to make it nearly inaudible / certainly not distracting.
If you're looking to mic shop, get a directional mic. Your current microphone is omnidirectional. A directional microphone will provide even more acoustical attenuation over your wife's voice. A coworker uses one of these for his WFH setup. Look for terms like Cardioid, Supercardioid, and/or Hpercardioid. These are the same microphones used by vocalists on stage.
In Microsoft Teams there's a "disableAutoGain" flag, which I have enabled a long time ago. It certainly helps, otherwise teams will just boom my microphone input to 100% gain every time. It helps but doesn't solve the problem.
I've tried a bunch of configurations, a bunch of noise supression software such as NoiseTorch or EasyEffects but nothing seems to work. It either sets a threshold so low that I have to speak very loudly for it to activate or the mic just picks up her voice near perfectly.
Thank you for pointing me into the right direction, I'll take a look at Cardioid microphones!