[espeak-ng:master] reported: Doucmentation request: Tone( #github
firstname.lastname@example.org Integration <espeak-ng@...>
[espeak-ng:master] New Comment on Issue #745 Doucmentation request: Tone(
Places of interest may be: 1. Settings for language translator. Most of settings don't need to be written in C code and may be set in language settings file cmn. 2. Settings for phonemes 3. Pronunciation rules in zh_list and zh_rules files.
It would be nice, if you would update documentation (e.g. setup steps/howto for tonal languages) with results of your investigation, to make life easier for other contributors.