ReadSpeaker is the name of the embedded text-to-speech tool in My Courses.
To change options and settings click on the sandwich menu on the left side of the tool bar:
To download the text to speech audio in mp3 format click on the "Download mp3" tile.
Click on "Page Mask" to dim the screen except for a bright horizontal line that moves with the mouse pointer:
Click on "Text Mode" to isolate text from content view
Click on "Enlarge Text" to make text larger in read mode
Click on "Click and Listen" to be able to click and listen to a given "chunk" or paragraph of text at a time.
Click on "Reading Voice" to change the between feminine and masculine Australian, English, and US accented voices.
Click on "Settings" to change general settings like default reading speed, font size, text color, and highlighting.