set-voice.sh now provides a message if there are no voices listed. This can happen for example if the game uses the nvda2speechd dll.

speech/set-voice.sh

@@ -194,6 +194,10 @@ for x in "${voiceListFullName[@]}" ; do
 done
 oldVoice="$($grep -P '"DefaultTokenId"="HKEY_LOCAL_MACHINE\\\\(SOFTWARE|Software)\\\\(Wow6432Node\\\\|)Microsoft\\\\Speech\\\\Voices\\\\Token(Enum|)s\\\\[^"]+"' "${WINEPREFIX}/user.reg" | $sed -E -e 's/"DefaultTokenId"="([^"]+)"/\1/g')"
 exit=1
+if [[ "${voiceList[@]}" -eq 0 ]]; then
+dialog --msgbox "No voices found." -1 -1
+exit 1
+fi
 while [[ $exit -ne 0 ]] ; do
 voice="$(menulist "${voiceList[@]}")"