To use this app you need to get IBM Watson API keys for their speech to text service, by making an account with Bluemix
First time you start the application you'd be prompt to set the API keys.
Should you need to change those you can use shortcut
Select Media, audio or video you'd like to transcribe.
Notifications show when a transcription as started and when it's finished.
On completion a editable text area shows the transcription.