Are there any hardware options for USB microphone noise reduction?

Question

Electronics

There is a USB microphone, excellent quality, but catches extraneous noise in the room. At the moment I use the following link:

USB microphone -> IL Minihost Modular (here I remove noise and equalize the sound with an equalizer through VST plugins) -> All programs that use the microphone

Question: are there any ready-made devices (or schematic diagrams of similar devices) to bring voice processing there and connect a USB microphone through them? I use the microphone on different computers, and on my work I can't install Minihost at all, because it's forbidden by the company's policy.

Answer 1

All the complexity in USB. It is necessary to unravel the microphone and solder the lotion for processing into the circuit before digitizing the signal. Otherwise, the lotion must be a microcomputer.
For soldering into an analog path, you can look for compressor circuits, noise suppressor circuits, which were probably published more than once or twice in the Radio magazine in the 1970s .. 2000s.
If the microphone is used only for voice (not for music, not for birdsong, not for sound effects such as the sound of tram wheels or cannon shots), then it would be nice to kill the upper and lower frequencies with an equalizer, leaving only the middle ones (the classic speech range of 300- 3400 Hz).

Answer 2

well, for example, a double-sided open membrane in DEMSh
capsules tec.org.ru/board/dehmsh_1a/14-1-0-2138

The DEMSh-1A microphone capsule is a symmetrical electromagnetic system with a diaphragm open on both sides. If the sound pressures on both sides of the membrane are not equal, then the membrane begins to perform forced oscillations in time with changes in sound pressure. Due to the fact that the geometric dimensions of the capsule are small, the sound pressure on both sides of the membrane noticeably differs from one another only when the sound source is close and asymmetrical relative to the membrane. Sound vibrations from distant sound sources practically do not act on the membrane even at high sound pressure. Therefore, with a close and asymmetrical location of the capsule relative to the sound source, it provides a high level of useful output signal while significantly attenuating all kinds of noise,

further wind protection, directional microphone, etc.
It all depends on the type, direction, source of noise and the quality of the sound received.

Answer 3

The only reasonable option is to try to find a microphone that will filter out noise. The use of intermediate devices with USB is from the realm of fantasy.
You can take an analog microphone and connect it through the same analog noise reduction circuit, but this is still fun with unpredictable results.
There are modern analogues of DEMS in headsets, for example Accutone UB1010 ProNC USB
Perhaps there are headsets from other manufacturers.
If you want a stationary microphone, then you need to look at a microphone with a clearly defined cardioid.
type FIFine Metal Condensor USB Microphone
They are usually a flattened rectangular shape and a mesh on both sides, it is necessary to speak from the front side.