However, you must be careful to edit only non-copyright protected audio files.
As M4A is designed for working on Apple software, many audio editor seems difficulty to handle this audio format. As one high-quality audio format, M4A is compatible with Apple software. Since 2007, Apple sold their audio file on iTunes as M4A file. Top 6 M4A Audio Editor (Free & Paid) to Edit M4A Files as a Pro
