Forked from https://github.com/Coceki/peko-button
Add them in the public/voices folder, and edit public/voices.json to add them in the interface.
Upload them in mp3, with a filename as close as possible to the content. Use romaji for Japanese.
MP3 equalization can be done using mp3gains, targeting a normal of 89db.
代码：
英语翻译：
特别感谢：