Some voice versions have been deprecated

[bast]

https://responsivevoice.org/change-log/

We could/should use responsiveVoice.getVoices() to detect available versions and not offer versions which are not supported anymore (e.g. "Russian male").

[lajanda]

Thank you for this information. I think that we will be happy so long as there is any voice available. Whatever programming solution that is the most likely to require the fewest (or no) fixes in the future is probably best.