Calibre Adds Read Aloud Feature in v5.7

It is so thrilling to find out that calibre adds TTS to the calibre viewer. Now the viewer gives you the option to read book text aloud. To use it you can simply click the Read aloud button in the viewer controls to start reading book text aloud. Or use the shortcut for read aloud function (Ctrl+S) to start reading aloud the whole book, starting at the current page. The word being currently read is highlighted. Once you start reading aloud, there is a floating bar with pause and other controls, like speed up speech and slow down speech, close read aloud, and configure read out, etc. You can also change the voice being used by clicking the gear icon in the floating bar that is displayed while Read aloud is active.

Besides, you can also read aloud selected text by adding the Read aloud button to the floating bar in the viewer preferences under Selection behavior(open the viewer controls >> preferences >> Selection behavior>> Click Add to add Read aloud option to the floating bar).