It would help to know more about your system setup. If you run "inxi -Fxzd
" and "lsusb
" from the console terminal prompt, highlight the results, copy and paste them back here, that should provide enough information.
If your microphone is connected to your computer properly then you should be able to hear it through your speakers, headset, headphones, without using any applications. I would recommend installing the superb Qasmixer and "Qas" packages and pulse audio control from the "Synaptic Package Manager (SPM)". You can use your system's sound settings or qasmixer or pulse audio sound control to make sure the microphone is on and the volume is at a good level. In qasmixer if you want to record your voice and the system's sounds from any application that may be playing, music app, browser, etc... enable "loopback" or if you have a "stereo mix" option under input then select that instead of mic. You may have to adjust application volumes and or mic volumes to make sure your voice can be heard over other audio sources.
You can use various desktop applications like Audacity, sound recorder, audio-recorder, etc... I just tested Audacity with and audio source of "sysdefault:mic0" and "mono" because I have a mono microphone, if you have a stereo mic, use stereo 2 channel. Again, you may have to adjust Audacity's mic volume to lower it if you see red in volume meter, or to increase it if it is too low.
Tutorial - Recording Computer Playback on Linux - Audacity Manual
https://manual.audacityteam.org/man/tut ... linux.html
SimpleScreenRecorder (SSR) is a great desktop recorder that can also record from various sound sources like your microphone.
Another post: You would use microphone source settings rather than "line-in" like "sysdefault:mic0".
Line input from my Casette Player - Linux Mint Forums
Hope this helps ...