AU to M4A Converter
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AU is an older Sun and Unix audio format used for system sounds, legacy recordings, and simple audio storage. Convert AU files online to MP3, WAV, FLAC, M4A, AAC, AIFF, and other modern audio formats for easier playback and preservation.
M4A is an MPEG-4 audio format commonly used by Apple Music, iTunes, podcasts, voice recordings, and mobile audio apps. Convert M4A files online to MP3, WAV, FLAC, AAC, AIFF, WMA, and other audio formats for editing, sharing, and universal playback.