VOC to AIFC Converter

How to Convert VOC to AIFC Online

1. Upload Your VOC File: Drag and drop or click "+ Add Files" to load one or more Creative Voice (.voc) files from your computer. Batch upload is supported, so you can queue up a folder of old Sound Blaster recordings at once.
2. Pick Audio Channel and Sample Rate: Defaults to "Original" for both — the safest choice when archiving. Override Audio Channel to Mono or Stereo if your source mixes both, and set Audio Sample Rate to 44.1 kHz (CD quality), 48 kHz (broadcast/video), or 22.05/11.025 kHz to match a vintage 90s VOC capture.
3. Trim (Optional): Use the Trim control to cut silence or a leading test tone from the start of the clip. Leave it on "Unchanged" to convert the entire file.
4. Convert and Download: Click "Convert" and your file is repackaged into an AIFC container (AIFF-C, big-endian PCM by default). Files process server-side over HTTPS, no sign-up, no watermark.

Why Convert VOC to AIFC?

VOC (Creative Voice File) was developed by Creative Technology in the late 1980s for the Sound Blaster family and is rarely created by any tool released after the early 2000s. AIFC (Audio Interchange File Format - Compressed, introduced by Apple in July 1991) is the format macOS, Logic Pro, GarageBand, and Final Cut Pro write when you export "AIFF" — those exports are actually AIFF-C/sowt under the hood. Converting VOC to AIFC moves your audio from a near-dead DOS-era container into one your Mac toolchain treats as a first-class citizen.

• Open vintage Sound Blaster recordings in Logic or GarageBand — Logic Pro and GarageBand won't import .voc directly. AIFC opens natively with full metadata, sample-accurate seeking, and no transcoding step.
• Archive 1990s game audio for preservation — VOC was popular in DOS games (Doom-era sound effects, Wing Commander, Strike Commander). AIFC's PCM-based codecs (sowt, twos, alaw, ulaw) preserve the original samples bit-for-bit when you pick PCM_S16BE, the AIFC default.
• Feed audio into Final Cut Pro or iMovie timelines — both accept AIFC natively; neither accepts VOC. Converting once avoids a Compressor pre-pass on every import.
• Match a music library that's already AIFF/AIFC — iTunes and Apple Music libraries built before Apple Lossless became default are typically AIFF-C/sowt. Adding a converted VOC keeps the library format-consistent for organizing and tagging.
• Maintain audio for older Mac apps — QuickTime Player, Audacity, and Adobe Audition all read AIFC; many of them silently fail on VOC's block-based structure with embedded silence/marker blocks.
• Reverse direction: Need the opposite for a DOS emulator project? See AIFC to WAV.

VOC vs AIFC — Format Comparison

AIFC Codec Quick Guide

When AIFC is written, the COMM chunk's compression-type field picks one of these codecs. xconvert defaults to PCM_S16BE (twos) on AIFC output, which is bit-for-bit lossless and what Logic/GarageBand expect.

Frequently Asked Questions

Is AIFC the same as AIFF?

Not quite. AIFF (1988) stores only uncompressed PCM. AIFC (1991) uses the same chunked container but adds a compression-type field that selects a codec — which can be uncompressed (twos/sowt) or compressed (alaw, ulaw, ima4, Qclp). When iTunes or macOS exports "AIFF" today it actually writes AIFF-C/sowt, identical to AIFF in sample fidelity but with little-endian byte order.

Will the audio quality change going from VOC to AIFC?

If your VOC contains 16-bit PCM and you keep the default PCM_S16BE codec, the conversion is lossless — every sample is preserved. If your VOC contains 8-bit PCM or ADPCM (common in pre-1995 Sound Blaster captures), the bit depth is upsampled into the AIFC container but the underlying resolution is still 8-bit; you don't gain fidelity, you just gain a container Mac apps can open.

Why does VOC even need converting — can't VLC just play it?

VLC and FFmpeg can play .voc, but most editors can't. Logic Pro, GarageBand, Final Cut Pro, iMovie, Adobe Audition, and Audacity (without manual import) won't accept VOC as a draggable source. AIFC is read natively by all of those.

What sample rate should I pick?

Match your source. Sound Blaster 1.0 captures were typically 11.025 or 22.05 kHz mono; later Sound Blaster 16 captures could go to 44.1 kHz stereo. Picking "Original" preserves whatever the VOC header declares. If you're feeding the output into a 48 kHz video timeline (Final Cut, Premiere), resample to 48 kHz at conversion time to skip an extra step later.

Does AIFC support metadata like ID3 tags?

AIFC supports its own chunk-based metadata (NAME, AUTH, ANNO, COMT chunks per the Apple spec) rather than ID3. Most modern Apple apps read these chunks; some Windows tools ignore them. If you need ID3-style portability, convert to VOC to MP3 instead.

Will the converted AIFC file be larger or smaller than the original VOC?

Usually similar or slightly larger. VOC and AIFC with PCM_S16BE both store raw samples, so size scales with sample rate, bit depth, channel count, and duration — not with the container. A 30-second 22.05 kHz mono 8-bit VOC is about 660 KB; the equivalent AIFC at PCM_S16BE doubles the sample width to 16-bit, making it roughly 1.3 MB. Pick the ulaw or alaw codec if you want to keep telephony-quality voice files small.

Can I batch convert a whole folder of VOC files at once?

Yes. Add multiple .voc files in step 1 and they all process with the same Audio Channel, Sample Rate, and Trim settings. Useful when you're migrating a whole DOS game-audio archive in one pass.

What's the difference between AIFC and WAV for this kind of archive?

WAV is also a chunked PCM container — the cross-platform equivalent of AIFC. AIFC is Apple-native and slightly more compact in metadata; WAV is the safer choice if your archive needs to open on Windows audio tools without QuickTime. For Windows-first workflows, use VOC to WAV. For Mac-first or pro-audio workflows, stick with AIFC.

Are files uploaded to your servers, and how long are they kept?

Files are uploaded over HTTPS and processed server-side (the conversion needs FFmpeg's libavformat to parse VOC's block structure). They're auto-deleted after processing — typically within a few hours — and no account is required. Don't upload anything you can't risk in transit; for fully local conversion, use Audacity with the FFmpeg plugin.