The issue is the following and has stumped me for a good half day now: In documentation, it is clearly stated that there should be 52 entries for VoiceStyleData[], ranging a bunch of languages. However 3 different machines I tried, with different licences, I am consistently getting only 8 and only in English.
Reference: https://reference.wolframcloud.com/language/ref/VoiceStyleData.html My output: 
Any ideas how to particularly install the German voices would be greatly appreciated. Thank you in advance.
