---
title: 'Adding Noise (2024) reduction to highly sensitive LINUX based microphones'
url: 'https://grav.munn.me/my-blog/adding-noise-2024-reduction-to-highly-sensitive-linux-based-microphones'
markdown: 'https://grav.munn.me/my-blog/adding-noise-2024-reduction-to-highly-sensitive-linux-based-microphones.md'
date: '2025-08-13'
description: "I have a VERY nice zoom setup in my living room: A lenovo ideacentre pc, a high quality 300 watt LED lamp, and a 65 inch TV. I needed a microphone that didn't require me to use a headset. I also use a conference camera with PTZ to 'zoom in' on myself. And I have a nice wireless NIZ keybaord (topre …"
---

# Adding Noise (2024) reduction to highly sensitive LINUX based microphones

I have a VERY nice zoom setup in my living room: [A lenovo ideacentre pc](https://www.lenovo.com/us/en/p/desktops/ideacentre/500-series/ideacentre-mini-gen-8-(1l-intel)/len102d0032), a [high quality 300 watt LED lamp](https://gvmled.com/product/gvm-sd300d-300w-led-video-light-high-power-led-spotlight-bi-color-led-daylight/), and a [65 inch TV](https://www.tcl.com/us/en/products/home-theater/6-series/tcl-65-class-6-series-4k-uhd-hdr-roku-smart-tv-65r617). I needed a [microphone](https://www.audio-technica.com/en-us/pro44) that didn't require me to use a headset. I also use a conference camera with PTZ to 'zoom in' on myself. And I have a nice [wireless NIZ keybaord](https://mechkeys.com/products/niz-x108-capacitancia-black-2021-ec-keyboard?_pos=15&_sid=133769df5&_ss=r&variant=43877392384223) (topre of course!), and a [kensington trackball](https://www.kensington.com/p/products/electronic-control-solutions/trackball-products/expert-mouse-wireless-trackball-3/).

All of this to say that I was running into problems with the noise generated by the VERY sensitive microphone (a cartoid mic, with a [48v phantom power supply](https://www.amazon.com/MC2-Interface-Condenser-Microphone-Recording/dp/B0C96JGFJH/ref=sr_1_4?crid=2DPH3FDE6II17&dib=eyJ2IjoiMSJ9.TOsD1QZJRlULpibXf3wj0LsCR8iWD4qIJngQmObvvrp9ieW3HRHes4hiR1vKvidS3dkfUJxfETkOSX9sMbMkC2GQix-bORNfUCwpzNebk6UP8sRbuZNZMb-a_aWFbdyDkonxrs_2NdgX5mTmkmjnE3RooWAzr9Jr5v8EMDEiTLBGzLFXVFwu_gb5Y7QTzQQozRhPb37ILMXJHBeGXxVl2SF0OK4FJpYmpMWmLS5u6TayWfSi5WyjdnojbkNJ5zbwkEqQGVcI2zBetgAHcFbZ6PCaRNc6w3Jf8J5HhIDET0w.ayyaYyldAHN-L0cgBDnHWBfEp3gJf8uGQeU3Le4cXLg&dib_tag=se&keywords=phantom%2Bpower%2Bsupply%2Bfor%2Bmicrophone%2Bto%2B1%2F8%2Binch&qid=1718492685&s=musical-instruments&sprefix=phantom%2Bpower%2Bsupply%2Bfor%2Bmicrophone%2Bto%2B1%2F8%2Binch%2Cmi%2C83&sr=1-4&th=1)). I discovered 'DeepFilterNet' a [VERY recent noise cancelling AI](https://github.com/Rikorose/DeepFilterNet) thingy, that reduces ALL non human speech to practically nothing. Basically ensure that you are using a modern linux distro that uses PIPEWIRE instead of 'pulse audio'. I use it on garuda linux. Its a little complexy to to setup:

1. get a copy of rust (via rustup)
2. clone the repo <https://github.com/Rikorose/DeepFilterNet/tree/main/ladspa>
3. compile with rust
4. follow the directions there. Basically I found that I had to put things in /etc/pipewire/blah
5. edit the config file
6. Profit!

I use this ALL THE TIME on my zoom calls and NO ONE complains when my dog barks, or my noisy keyboards make noise, or my trackball clicks! YEA!

---

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