If only some voices stopped working after the update you may try the following:

  • Open the Infovox iVox Voice Manager (in Applications)
  • Go to the voice that is not working, and from the Action menu (menu at the top of your screen or at most-right column of the Infovox iVox Voice Manager window) select "Download and Reinstall".  

If this does not solve the issue, or you have many voices installed, please do the following:

  1. Open the Infovox iVox Voice Manager (in Applications)
  2. Click "Manage accounts" and copy your Account ID. Paste it in a text document.
  3. Go to the Tools menu from the menus at the top of your screen and choose "Uninstall Infovox iVox..." You might be asked to enter the name and password for an OS X admin account.
  4. Reboot your computer.
  5. Download the latest version of Infovox iVox from the following link: https://www.assistiveware.com/products/infovox-ivox/
  6. Open the Infovox iVox Voice Manager, and click "Manage Accounts" button
  7. In the account management screen, click the "Add Account..." button. 
  8. In the Add Account screen, choose the "Use Existing Account" tab.
  9. Enter your AssistiveWare Activation Server account ID. Click the OK button to authorize the activation server account on the computer. 
  10. In the account management screen, click the Close button to return to the Infovox iVox Voice Manager.  
  11. From the top menu select Tools > Install All Licensed Voices.... 
  12. In the Install All Licensed and Free Voices dialog box, make sure your name and email address are selected in the Account popup menu.  
  13. Click the Activate and Install button to download, install, and activate your licensed voice. 
  14. If prompted, enter the name and password for an OS X admin account on the computer to complete the installation and activation of the voice. 

 If you use VoiceOver you may need to select the voice in the VoiceOver utility app. To do so go to Speech to select your voice. If the voice does not show up, you may need to add the voice to the list by choosing "Customize..." at the end of the list.