How to record audio files

Format

All voice audio (dialogs, words, etc), should be MONO, 44.1KHz files and should be well trimmed at beginning (at zero crossing!)

Level shoudl be normalized with a peak reference at -6db

In the Unity project they are saved in MP3 format, with middle quality VBR (Variable Bit Rate).

To easy the voice audio normalization we have a macro script for Audacity: you can find it here: Antura Normalize Vocabulary - Audacity macro.txt

Why?

because we have lots of voice audio files and don't want to waste app space, and voice recordings just need mono and medium compression.

Tools

Audacity is a perfect free multiplatform tool to edit audio files.

on macOS we use the free utility xAct to batch convert audio files.