Voicepeak API
Regarding the title: more like 'Using VOICEPEAK via command line'.
References:
- https://atarms.hatenablog.com/entry/2023/03/12/164118
- https://takashiski.hatenablog.com/entry/2023/01/13/235249
Apparently, neither AHS nor Dreamtonics bothers giving an extensive documentation / manual for using VOICEPEAK without the GUI. For comparison, VOICEVOX doesn't do great but at least you can get a grip scavenging through what they have in the repo.
So, half of this is translation of the aforementioned Japanese blogs, the other half is what I found out by trying.
Basic usage
./voicepeak.exe [OPTION..]