Where does Sound Recorder place the files it records?

I'm running an LTS version of Xubuntu. I have installed a Sound Recorder and have recorded a test sound. I have restarted the app, to check if this is a permanent recording (and that recording stays, so it is somewhere in the file system).

However, i'm unable to find where Sound Recorder puts the files. I have checked '~/Music/' and looked through the directories for something titled 'SoundRecorder' or 'recorded audio', but nothing is there.