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Supports: VOC
VOC is Creative Labs' Sound Blaster format from the early 1990s, built around a 26-byte "Creative Voice File" header and typed data blocks. It faded once RIFF WAVE and AC'97 standardization made it redundant. AIF (also written .aiff) is Apple's 1988 Audio Interchange File Format — uncompressed PCM in a big-endian container — and it remains a first-class citizen in Logic Pro, GarageBand, Final Cut Pro, and Pro Tools.
| Property | VOC | AIF |
|---|---|---|
| Full name | Creative Voice File | Audio Interchange File Format |
| Creator / year | Creative Technology, early 1990s | Apple, 1988 (based on EA's IFF) |
| Container endianness | Little-endian | Big-endian (sowt variant is little-endian) |
| Default encoding | 8-bit unsigned PCM, ADPCM variants | 16/24-bit signed PCM (LPCM) |
| Typical sample rate | 8000–22050 Hz (Sound Blaster era) | 44.1 / 48 / 96 / 192 kHz |
| File size, 1 min stereo 16-bit/44.1k | ~10 MB (when used at CD spec) | ~10 MB |
| Native on macOS | No (requires VLC / ffmpeg / converter) | Yes (Finder, QuickLook, Music.app) |
| Native on iOS | No | Yes |
| Pro Tools / Logic / FCP | Imports via conversion | First-class import |
| MIME type | audio/x-voc | audio/aiff, audio/x-aiff |
| Status | Legacy / archival | Active professional format |
| Codec | Bit depth | Endianness | When to pick it |
|---|---|---|---|
| PCM 16-bit Big Endian (default) | 16-bit | Big-endian | Standard AIFF — matches what Logic, Pro Tools, and FCP expect. Default for any .aif/.aiff target on xconvert. |
| PCM 16-bit Little Endian | 16-bit | Little-endian | AIFF-C "sowt" variant. Pick when your downstream tool specifically asks for sowt. |
| PCM A-law / mu-law | 8-bit log | — | Legacy telephony pipelines, voicemail systems. Smaller than PCM but lossy. |
None — they're the same format. Apple introduced AIFF in 1988 and the original three-character DOS-style .aif extension stuck around alongside the four-character .aiff that became standard on macOS. Logic Pro, Pro Tools, and Finder treat both identically. Some Windows tools historically only recognized .aif, which is why the short extension survives.
Usually yes, sometimes dramatically. A 22050 Hz / 8-bit mono VOC at one minute is about 1.3 MB. The same minute re-encoded as 16-bit stereo PCM at 44.1 kHz AIF is roughly 10 MB — eight times bigger — because AIF is uncompressed at a higher bit depth and (if you upsample) a higher sample rate. Keep "Original" channel and sample rate to avoid inflating the file unnecessarily.
Generally no. Resampling never adds detail that wasn't in the source — it interpolates between samples. If the only reason you're resampling is to "match CD quality", skip it: a 22 kHz PCM AIF plays back fine in every modern DAW. Only resample when a downstream tool refuses anything below 44.1 kHz (some streaming validators and CD-burning utilities do this).
Because VOC and AIF can both wrap straight PCM. When you convert a PCM-encoded VOC to PCM-encoded AIF, no audio data is recompressed — we re-wrap the same samples into a new container with a new header. The bits coming out of your speakers are the same bits that went in. The only step that risks audible change is resampling or bit-depth reduction, which we skip when both sides are set to "Original".
Yes. AIF/AIFF has been a primary import format for Logic since v1 and for Pro Tools since the earliest releases. Drag the file into the session and it will appear on the next available audio track. Apple Loops in Logic and GarageBand are themselves AIFF files with extra metadata.
Yes. Windows Media Player, foobar2000, VLC, and Adobe Audition all read .aif and .aiff natively. The myth that AIF is "Mac only" comes from the 1990s — modern Windows handles it without any third-party codec pack.
Loop point metadata in VOC's data block 6/7 (loop start/end) is engine-specific and not part of the AIFF spec. Your audio data carries over intact, but if you need looping behavior in a sampler, set the loop region in your DAW or sampler after import. The PCM samples themselves are byte-perfect.
Yes. Upload as many .voc files as you need and the same settings (channel, sample rate, trim) apply to each. Each converted AIF downloads individually, or you can grab them as a ZIP.
Pick a compressed audio target instead — VOC to MP3 (lossy, ~10x smaller), VOC to FLAC (lossless, ~50% smaller than PCM), or VOC to WAV if you specifically need a Windows-native uncompressed container. For broader audio-format work, the general Audio Converter handles 17 formats at once.