@San Sanych
Hello! Yes, you can customize the pronunciation for the Russian language, including adjusting the stress on different syllables in a word. This can be done by using phonetic spelling or by applying specific markup language supported by the text-to-speech engine to indicate the correct pronunciation.
For example, you might use the International Phonetic Alphabet (IPA) or Speech Synthesis Markup Language (SSML) to specify the stress in a word. This way, you can ensure that the person's full name is pronounced correctly.
If you provide me with the specific words or names that need to be corrected, I can guide you on how to write them with the correct stresses or use the appropriate markup language.