The previous version of Skype allowed voice translation
The previous version of Skype supported voice translation to both audio and text. The current version does not support voice translation to audio. This loss of functionality is certainly a downgrade. Please restore this capability with the earliest possible update.
I copied the response from Skype technical support below: "We have coordinated this on our highest level of support and as per advised the voice translator is not yet available on the update version of Skype application. This is the reason why it didn’t work. As of the moment translator is only available for call captioning wherein your voice will be translated via text."