Convert AIFC to AVI — Free Online Converter
Convert AIFF-C Compressed Audio (.aifc) to Audio Video Interleave (.avi) online for free. Fast, secure audio conversion with no watermarks or registra...
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How to Convert
Upload your .aifc file by dragging it into the upload area or clicking to browse.
Choose your output settings. The default settings work great for most files.
Click Convert and download your .avi file when it's ready.
About AIFC to AVI Conversion
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.
Why Convert AIFC to AVI?
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.
Common Use Cases
- Importing legacy Mac AIFC audio into Windows-based video editing timelines as audio-only AVI
- Preparing AIFC sound effects for multimedia authoring tools that only accept AVI input
- Converting vintage AIFC recordings for archival in AVI-based media asset management systems
- Making AIFC audio available to legacy VirtualDub or Windows Movie Maker projects
- Bridging AIFC audio from Mac OS archives into Windows production workflows
How It Works
FFmpeg decodes the AIFC container (handling PCM, IMA ADPCM, MACE, u-law, or A-law) to raw PCM samples. The audio is then encoded as PCM (for lossless) or MP3/AC3 (for compressed) and muxed into an AVI container using Microsoft's RIFF structure. No video track is created — the AVI file contains only the audio stream. The RIFF container stores audio in little-endian byte order, automatically handling the byte-order conversion from AIFC's big-endian format.
Quality & Performance
When using PCM audio in the AVI container, quality from an uncompressed AIFC source is perfectly preserved — the byte order is converted but the audio data is bit-for-bit identical. With MP3 or AC3 encoding, quality depends on the chosen bitrate. MACE-compressed AIFC sources will produce output limited by the original MACE quality regardless of the AVI audio codec chosen.
Device Compatibility
| Device | AIFC | AVI |
|---|---|---|
| Windows PC | Partial | Native |
| macOS | Partial | Partial |
| iPhone/iPad | Partial | Partial |
| Android | Partial | Partial |
| Linux | Partial | Partial |
| Web Browser | No | No |
Recommended Settings by Platform
Spotify
Resolution: N/A
Bitrate: 320 kbps
OGG Vorbis preferred
Apple Music
Resolution: N/A
Bitrate: 256 kbps
AAC format required
SoundCloud
Resolution: N/A
Bitrate: 128 kbps
Lossless FLAC/WAV for best quality
Podcast
Resolution: N/A
Bitrate: 128 kbps
MP3 mono for spoken word
Tips for Best Results
- 1Use PCM audio codec inside AVI for a lossless conversion from uncompressed AIFC sources
- 2Choose MP3 at 320 kbps if file size is a concern and lossless quality is not required
- 3This conversion makes most sense for legacy Windows workflows — for modern use, prefer MP4 or MKV containers
- 4Verify the target application accepts audio-only AVI before batch converting
- 5If you only need Windows audio playback, WAV is simpler and more universally recognized than audio-only AVI
AIFC to AVI bridges Apple's legacy compressed audio into Microsoft's classic multimedia container. The resulting audio-only AVI file integrates seamlessly with Windows-based editing and playback tools.