AIFF to AIFC Converter
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Supports: AIF, AIFF
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Need help?AIF to AIFC Converter
AIF (.aif) and AIFC (.aifc) are two members of the same Apple audio family. AIF — identical to .aiff — is Apple's Audio Interchange File Format holding uncompressed PCM audio, while AIFC (also written AIFF-C) is the later, compression-capable revision of that same format. This tool rewraps your AIF into the AIFC structure with uncompressed PCM by default, so the audio samples are carried over unchanged.
AIF (AIFF) Format at a Glance
| Property | Value |
|---|---|
| Full name | Audio Interchange File Format |
| Developer | Apple Inc., 1988 (based on Electronic Arts' IFF) |
| Container | Chunk-based: FORM container with COMM and SSND chunks; FORM type AIFF |
| Audio payload | Uncompressed PCM only |
| Byte order | Big-endian |
| Extensions | .aif and .aiff (interchangeable) |
| Typical size | ~10 MB per minute (16-bit / 44.1 kHz stereo) |
| Best for | Lossless master files in macOS editing workflows |
AIFC (AIFF-C) Format at a Glance
| Property | Value |
|---|---|
| Full name | AIFF-C (Compressed Audio Interchange File Format) |
| Developer | Apple Inc. — revision of AIFF |
| Container | Same chunk-based FORM container; FORM type changes to AIFC; adds an FVER (format version) chunk not present in plain AIFF |
| Audio payload | Carries a compression-type field in the COMM chunk; NONE = uncompressed PCM, sowt = uncompressed little-endian PCM; can also hold codecs like A-law and μ-law |
| Byte order | Big-endian header; PCM can be big- or little-endian (sowt) |
| Extension | .aifc (also accepts .aif / .aiff) |
| Default here | Uncompressed PCM — same sample data as the AIF input |
| Best for | A standards-modern AIFF-C wrapper for tools that expect the compression-type field |
How to Convert AIF to AIFC
- Upload Your AIF File: Click "+ Add Files" to add a .aif or .aiff file from your computer, Google Drive, or Dropbox. Multiple files can be queued.
- Set Audio Channel and Sample Rate: Leave both on "ORIGINAL" to preserve the source exactly, or pick a channel layout (mono/stereo) or sample rate if you need to standardize the output.
- Trim (Optional): Use the Trim control to keep only a portion of the audio; leave it "Unchanged" to convert the whole file.
- Convert and Download: Click "Convert" and download your AIFC file. Files are uploaded over an encrypted connection, processed on our servers, and deleted automatically after a few hours. No sign-up, no watermark.
Frequently Asked Questions
Will converting AIF to AIFC reduce my file quality or size?
No. Because AIF is uncompressed PCM and the AIFC output here defaults to uncompressed PCM (compression type NONE), the actual audio samples are copied across unchanged. There is no quality loss and no quality gain, and the file stays in the same uncompressed size class — roughly 10 MB per minute for 16-bit / 44.1 kHz stereo. If your goal is a smaller file, convert to AIF to MP3 instead.
What is technically different between an AIF and an AIFC file?
The container is the same chunk-based structure, but the FORM type identifier changes from AIFF to AIFC, an FVER (format version) chunk is added, and the COMM chunk gains a compression-type field. In the default output that field reads NONE, signalling uncompressed PCM. So AIFC is best thought of as the modern, extensible revision of the AIFF wrapper rather than a different audio codec.
Is .aif the same as .aiff?
Yes. .aif is the shorter three-letter form of .aiff, used on older Mac and DOS-style systems that limited extensions to three characters. They are the same format with the same uncompressed PCM audio — the spelling of the extension is the only difference. This tool accepts both .aif and .aiff as input.
Does AIFC always mean the file is compressed?
No, despite the "C" standing for "Compressed." AIFF-C only adds the ability to declare a compression codec in the COMM chunk. A perfectly valid AIFC file can carry the compression type NONE (uncompressed big-endian PCM) or sowt (uncompressed little-endian PCM). The output from this converter is uncompressed by default.
What opens an AIFC file?
On macOS, AIFC plays natively in QuickTime Player, the Music app, and most pro audio editors. On Windows, support is more selective: many players read uncompressed AIFC, but files using older Apple codecs (such as MACE) may need FFmpeg-based software. In our testing, an uncompressed-PCM AIFC produced by this tool opened in standard cross-platform players without extra decoders. For a Windows-standard uncompressed file, convert to AIF to WAV instead.
Should I convert to AIFC or just keep the AIF?
If a specific application or pipeline asks for the AIFF-C form — for example because it relies on the compression-type field or the FVER chunk — convert to AIFC. If you only need a lossless Apple master and everything in your workflow already reads AIF/AIFF, there is little reason to change, since the audio is byte-for-byte the same. For sharing or portability, a compressed format like MP3 is far smaller and more universally supported.