AIF vs W64
A detailed comparison of AIFF Audio (short) and Sony Wave64 — file size, quality, compatibility, and which format to choose for your workflow.
AIFF Audio (short)
Audio FilesAIF is the short file extension for AIFF (Audio Interchange File Format), an uncompressed audio standard developed by Apple based on the IFF structure. It provides CD-quality lossless audio and is widely used in professional music production on macOS.
About AIF filesSony Wave64
Audio FilesWave64 (W64) is an extension of the WAV format developed by Sony that breaks the 4 GB file size limit of standard WAV by using 64-bit chunk sizes. It is used in professional audio production for very long or multi-channel recordings.
About W64 filesStrengths Comparison
AIF Strengths
- Lossless and uncompressed — bit-exact audio.
- Universal Mac compatibility.
- Compatible with every pro audio editor.
- 3-character extension for legacy Windows.
W64 Strengths
- Unlimited file size (64-bit chunks).
- Professional DAW compatibility.
- Bit-exact lossless.
Limitations
AIF Limitations
- Large files — no compression.
- Same limitations as .aiff.
- Redundant extension in modern workflows.
W64 Limitations
- Less universal than WAV.
- Niche — only matters for very large sessions.
- Competes with RF64.
Technical Specifications
| Specification | AIF | W64 |
|---|---|---|
| MIME type | audio/aiff | audio/x-w64 |
| Extension | .aif | .w64 |
| Container | IFF (big-endian PCM) | — |
| Alias of | .aiff | — |
| Variants | .aifc (AIFF-Compressed) | — |
| Max size | — | 2^64 bytes |
| Relative | — | RF64 (EBU 64-bit WAV) |
Typical File Sizes
AIF
- 3-min song (CD quality) 30 MB
- 3-min song (24-bit / 96 kHz) 100 MB
W64
- 1-hour 24-bit 48 kHz mono ~620 MB
- 48-hour field recording ~30 GB
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Frequently Asked Questions
AIF (AIFF Audio (short)) is an audio file format used to store sound recordings — music, voice, podcasts, sound effects. The format defines how the audio samples are compressed (or stored raw), what bitrates are supported, and how metadata such as title, artist, album, and cover art is embedded. It is part of the audio files family.
AIF (AIFF Audio (short)) is an audio formatoo de arquivo used to store sound recordings — music, voice, podcasts, sound effects. The formato defines how the audio samples are comprimido (or stored raw), what bitrates are suportado, e how metadata como title, artist, album, e cover art is embedded. It is part of the audio arquivos family.
VLC, foobar2000, and the default media players on Windows and macOS handle AIF natively. On mobile, iOS Music and Android media apps vary in their support — popular formats work everywhere; niche ones may need a dedicated app. If playback fails on a device, converting to MP3 or AAC usually solves it.
VLC, foobar2000, e the default media players no Windows e macOS handle AIF natively. On mobile, iOS Music e Android media apps vary in their support — popular formatoos funcionar everywhere; niche ones may need a dedicated app. If playback fails em um device, convertendo to MP3 ou AAC Geralmente solves it.
Upload the AIF to KaijuConverter and pick MP3, WAV, FLAC, AAC, OGG, or any other target. Our FFmpeg pipeline decodes the audio and re-encodes to the target format at sensible default bitrates (VBR ~190 kbps for music, 96 kbps for speech). Metadata and cover art travel with the audio where both formats support them.
AIF can be lossy or lossless depending on the specific variant. Lossy variants (smaller files) discard some audio detail during compression in ways tuned to be inaudible; lossless variants preserve every sample exactly but produce larger files. For distribution, lossy at high bitrate is standard; for archival, lossless wins.