This is a problem for Russia , Ukraine, Belarus and other countries using the Russian version of the TTS. TTS in some cases improperly puts the stress in words. Accent mark in Russian language is essential , without an accent turns out that the word is pronounced very differently .
We tried to put an accent mark in words in the editor , but TTS used Waze does not understand this sign . While other TTS, take for example from Google - understand accent .
This is quite a serious problem , because it some users do not use TTS, and those who use constantly hear wrong , sometimes very funny pronunciation of words.