this post was submitted on 14 Jun 2025
43 points (95.7% liked)
Linux
55319 readers
885 users here now
From Wikipedia, the free encyclopedia
Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.
Rules
- Posts must be relevant to operating systems running the Linux kernel. GNU/Linux or otherwise.
- No misinformation
- No NSFW content
- No hate speech, bigotry, etc
Related Communities
Community icon by Alpár-Etele Méder, licensed under CC BY 3.0
founded 6 years ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
I can think of some commercial audio processors that can help with that, but they are super pricey.
I can't think of a linux application that has this capability. If there is something out there that offers AEC (acoustic echo cancellation) on linux with two mic inputs, id also be interested.
One way to help with this as far as inexpensive hardware is to make sure you're using cardioid dynamic microphones, and not omnidirectional condenser microphones. Cardioid dynamic mics generally pick up audio directionally, like from the "front". You have to be right up on the mic in order to have it record any type of audio. They generally wont pick up environmental sound from anything more than a few feet away. You can just point them away from noise you don't want to pick up.
Yes, I'm sure there are multiple professional software solutions that are expensive but can do it. Reconfiguring the equipment is much cheaper.
Even basic stuff like teleconferencing software can do it, like do y that when Zoom is playing audio it doesn't pick it back up through a desk mic, unless the feedback is really bad.
Hardware isn’t the same as software so I feel like my point largely stands lol. There’s no way their room is treated either.
I’ve regularly run 2-5 person talking head recordings for years. Mic placement is everything. If they’re too close together there’s no solution. They need to be 180 to each other with hyper cardioids
The room is not professionally treated for sound, but we do have one wall (behind the mics) 90% covered with 2" sound dampening foam. Lots of stuff on the other walls, rugs, etc. It is not a bare-bones room. Our mics are good quality cardioid mics and while our setups are not 180° back-to-back, the mics point away from each other when in use. I don't know if I can explain well enough with words, but we sit side-by-side with the mics between us on arms. They swing down between us, stretch out towards us, and point away from each other. They are about 1.5 to 2 feet apart from each other, pointed away, when in use.
Then it’s not echo you’re getting, it’s bleed. Y’all should look into kill switches for each mic. There are really great set ups that allow you to kill the mic whenever you are releasing a button or pedal, so as long as you get used to the habit of only pressing down when you’re speaking (very doable) that is also an option. Discord also support push to talk if you want the free/more hassle version.