The sound effect is playing at the time when the control character is analyzed. It is effective for displaying messages and battle logs. Register the material with the official plug-in "MaterialBase.js" and specify the material identifier from the control characters.
[Here some of the text in the plugin] "MaterialBase.js" is under the installation folder of RPG Maker MZ. It is stored in the following folder.
Triacontane is practicing due diligence and has two versions of both JP and EN documentation. So I do not have to anything lol.
[Triacontane's word] This plugin is released under the MIT License. [See in the plugin.] Terms of service:
Can be modified and redistributed without the permission of the author, and usage patterns (commercial, 18 prohibited, etc.)
There are no restrictions on this plugin is yours already.