Setting up a microphone

[Keith Beattie]

Hello,

I'd like to try recording through the microphone both for skype and for 
general audio recording but can't figure out how to get sound out of the 
  microphone.

The Handbook's "7.2.2 Testing the Sound Card" section is a great set of 
simple instructions for testing of playback (cat /dev/sndstat, cat 
filename > /dev/dsp) but I can't seem to find an equivalent for getting 
my microphone going.

Does anyone have a similar set of checks for testing microphone input?

$ uname -r
5.4-RELEASE-p3

$ cat /dev/sndstat
FreeBSD Audio Driver (newpcm)
Installed devices:
pcm0: <Creative CT5880-E> at io 0xb000 irq 20 kld snd_es137x (1p/1r/0v 
channels duplex default)

Thanks,
ksb