TTSAutomate - An excellent tool that allows you to create your own voice packs. Please get it at:
https://github.com/CaffeineAU/TTSAutomate
Here is a General ErSky9x basic phrase file for using with the TTsAutomate utility. You can edit, and add files to the "user" and "ModelNames" folders, but please don't touch the "system" folder, or your voice pack might not work properly.
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Here you find Voice Packs for Ersky9x. From now on there will be only one pack for all boards using the Ersky9x firmware. Different voices mean different packs of course, but for all boards.. There are no specific voice packs for 9XR-PRO, Taranis, 9xtreme or Skyboard. There is a pack for Ersky9x. I did make some welcome messages for all different boards and placed them inside the "Extras" folder though, so you can change the welcome message if you want

Unzip the "voice" folder to the Root Directory of your radio's SD Card..
There is now also a "Docs" folder that has the voice list and a little tutorial explaining one of several ways of making your own voice files. The voice used on this pack is "Sharon" from http://www.acapela-group.com/
I hope it will remain available for a long time

I hope you enjoy this voice pack.
João
If you want to create your own files using the voices available on your computer and OpenTXspeaker.
viewtopic.php?f=7&t=7715&p=109433#p109430
Thanks to mikeller
Create your own files on a Mac computer
viewtopic.php?f=7&t=7715&start=30#p109479
Thanks to flybabo
Voice packs created by other users:
Voice Pack Portuguese- Brasil
Warning: The inactivity alarm (when you forget the radio ON) can be LOUD. If you are working on THE RADIO, specially late at night when all your family is sleeping, and you need to leave THE RADIO for a while, please turn it (THE RADIO of course) OFF. Your battery (and everyone else in the neighborhood) will thank you, specially if you use a Lithium battery to power the TX.
New voice pack for ersky9x versions r218 and newer. It does not work with earlier versions.
This pack uses only named files instead of numbers. You can add your own files to the "user" folder. Add model names to the modelNames folder. DO NOT change anything in the "system" folder. If you want to use a system file, just copy it to the "user" folder. You will now be able to select it and use it.
NOTE - From now on the file will include a version number and a ChangeLog file inside the "Docs" folder.
THE OLD PACK FOR VERSIONS 217 AND EARLIER WAS REMOVED. IT WAS ONLY CONFUSING PEOPLE THAT INSTALLED THE LATEST VERSION OF ERSKY9X. IF YOU HAVE AN OLD VERSION OF ERSKY9X, YOU SHOULD UPDATE TO THE LATEST ONE..