The Text to Speech Button is not working anymore in Arabic.
Also, could you have a look at the Swedish one, because it is REALLY bad quality. (the pronounciation I mean).
I tested quickly the Dutch and Portuguese ones, and they are quite acceptable.
Thanks for letting us know about the problem with Arabic TTS, I’ll report it to our developers.
The TTS is different on different platforms and browsers. There isn’t much we can do about it since it is related to Google Translate TTS, but we are looking to find solution and to make TTS sounds same on all browsers.
Which browser are you using? Can you try another browser and check if there is an improvement? From our experience, it seems that TTS sounds much better on Firefox than on Google Chrome.