Audacity doesn't recognize an external microphone

I just downloaded Audacity and put an external microphone on my Mac. However, Audacity didn’t recognize it. To deal with this problem, I tried finishing Audacity and unplugging the microphone from my laptop. After that, I put the microphone again and open Audacity again. However, the situation didn’t get well.I don’t know what I should do.

Have you given Audacity permission to use the microphone? (In the Mac “Preferences > Privacy” settings).

Yeah, I checked the microphone setting and I gave Audacity permission.However, the situation doesn’t change at all.

I would like to connect Audacity to the external earphone.

Please look at this attached picture. Although I connect the external earphone to Mac, it only displays internal microphone. I don’t know what I should do.
スクリーンショット 2021-01-27 23.52.15.png

What is the microphone? Is it a USB microphone?

Does it appear in Apple (upper left) > System Preferences > Sound > Input?

Very few microphones appear as the manufacturer’s name. Most of them appear as something generic such as USB Audio CODEC.

I have had a microphone vanish when I crossed Stereo/Mono by accident and the microphone didn’t support both.


Actually, I would like to measure snoring while sleeping as a part of graduation project and I’m looking for the software to do it. After that, I’ll analyze the graph whose hozirontal axis is time(h) and vertical axis is frequency. Do you know some convenient software which meets this demand?

The obvious choice is “Audacity”.
Track Spectrogram view displays frequency on the vertical axis and time on the horizontal (intensity is indicated by colour) Spectrogram View - Audacity Manual

Did you get your microphone working or is that still a problem?

I would like to measure snoring while sleeping

So would I. I tried it with a small stand-alone sound recorder suspended over the bed.

(That’s not the whole assembly). Easy 8 or 9 hour perfect-quality WAV recording, directional stereo microphones, and it came with rechargeable batteries.

Unless the snorer makes enough noise to wake the neighbors and scare the cat, it’s almost impossible to separate normal bed/sheet/blanket, tossing and turning sounds from breathing and snoring. Everybody thinks about cartoon character snoring. It doesn’t work like that.

It’s easy to key volume changes and find sound events, but it’s a lot harder to key on frequency changes. Or is that the research goal?

Do you have good quality wired headphones? You may be spending a lot of quality time listening to those things. I’d strongly warn against wireless headphones. We’re already collecting stories on the forum about “mystery noise” problems which turned out to be wireless failures.

So, ummmm. We still don’t know what the microphone is.

What is it?