Linux based computer.
A supported sound card.
Speakers or headset.
FM radio card ( or analog tv capture card that has a radio tuner.
Note: can do this on a gui based machine from a terminal also. If you are visually impaired, instructables like this can be very important.
Step 1: Command line sound recording.
$ sudo apt-get install sound-recorder
When recording from the command line the command is:
$ sound-recorder -c 2 -b 16 -P -S 5:00 recording.wav
The options set stereo recording (-c 2), 16 bit sampling (-b 16), priority threading (-P) to ensure high priority in CPU usage, and limiting the recording to 5 minutes. The output is written to the file recording.wav.
Many of these options are the default so you can simply:
$ sound-recorder -P recording.wav
arecord: Linux Command to List all Soundcards and Digital Audio Devices
Here is a quick way to list all detected and working soundcards. Use arecord command line sound recorder and player for ALSA soundcard driver. The -l option List all soundcards and digital audio devices. The -L option list all PCMs defined. The information obtained from following command can be used to play various media files [...]
$ arecord filename.ext
$ aplay filename.ext