Recorded audio does not show up in audio tab

[nathanathan]

I tried recorded a short pencast on my echo smartpen and it didn't show up on the audio tab. I'm not sure if this a bug or missing functionality. If it's a bug let me know if additional information would be useful.

[johndrinkwater]

missing functionality https://github.com/dylanmtaylor/LibreScribe/blob/master/src/GUIFrame.cc#L493