Convert AIFC to iPhone Audio — Free Online Converter

AIFC (AIFF-Compressed) stores audio using legacy Mac compression codecs within an IFF container variant. iPhones, like iPads, have progressively dropped support for the Mace and IMA ADPCM codecs that AIFC commonly uses. Converting AIFC to iPhone Audio produces an AAC file in M4A format — the exact audio format the iPhone was designed around, from the original 2007 model to the latest iPhone. This ensures reliable playback through the Music app, AirPods, CarPlay, and every iOS audio application.

AIFC files are orphans of Apple's own legacy — created by Macintosh systems in the 1990s but no longer reliably playable on Apple's current mobile devices. iOS has stripped out the QuickTime legacy codecs needed for Mace decompression. Converting to AAC/M4A transforms these aging audio files into the format that defines iPhone audio.

This conversion matters for people migrating old Mac audio archives to their iPhone library, institutions digitizing legacy Mac-based audio collections for mobile access, and anyone who encounters AIFC files from vintage software, multimedia titles, or educational CD-ROMs and wants to play them on a modern iPhone.