To start the recording of your voice, click on the red button marked "REC." ( "Record") at the bottom of Canta's window.
A dialog box then opens so you can specify the name and location of the file containing your recording.
When Canta records, a red indicator appears beside the status of the player.
Anything you sing will be recorded in the wav file, with the sampling frequency that you specified in the settings.
To stop recording, click again on "REC."