Convert AIFC to AVI — Free Online Converter

AIFC (AIFF-C) is Apple's legacy compressed audio format from the late 1980s, storing audio in codecs like IMA ADPCM, MACE 3:1/6:1, and uncompressed PCM within an IFF-derived container. AVI (Audio Video Interleave) is Microsoft's classic multimedia container from 1992, based on the RIFF structure and widely supported on Windows systems and legacy media players.

Converting AIFC to AVI produces an audio-only AVI file — the audio stream is re-encoded and placed in the AVI container without any video track. This is primarily useful for integration with legacy Windows-based media workflows, video editing timelines, and multimedia authoring tools that expect AVI input.

Legacy Windows multimedia software often requires AVI as its input format, even for audio-only content. Video editing tools like VirtualDub, older versions of Adobe Premiere, and Windows Movie Maker work natively with AVI but may reject AIFC entirely. Wrapping audio in AVI makes it importable into these Windows-centric workflows.

AIFC is virtually unknown on Windows — the format was exclusive to Apple's Mac OS and NeXTSTEP ecosystems. AVI, as a Microsoft format, has decades of built-in Windows support. For teams moving legacy Mac audio assets to Windows-based production pipelines, AVI provides a familiar container that every Windows application recognizes.