Convert AIFF-C Compressed Audio (.aifc) to Windows Media Audio (.wma) online for free. Fast, secure audio conversion with no watermarks or registration.
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AIFC (AIFF-C) is Apple's compressed audio interchange format from classic Mac OS, supporting IMA ADPCM, MACE 3:1/6:1, G.711, and uncompressed PCM. WMA (Windows Media Audio) is Microsoft's proprietary audio codec, introduced in 1999 as part of the Windows Media framework. WMA was Microsoft's answer to MP3 and AAC, commonly used in Windows Media Player, Zune, and early Windows Phone devices.
Converting AIFC to WMA bridges two competing ecosystems — Apple's legacy format and Microsoft's proprietary codec. The result is playable on Windows systems, older Microsoft devices, and applications that specifically require WMA input.
WMA is natively supported on every version of Windows without additional codec installation. Windows Media Player, Groove Music (now Media Player), and Xbox media apps all handle WMA without configuration. If your target audience primarily uses Windows and you need guaranteed out-of-the-box playback, WMA delivers that.
Some enterprise environments and automotive infotainment systems from the 2000s-2010s era specifically support WMA but not AAC or Vorbis. Legacy Zune devices, older Windows Phones, and certain car stereos with USB input only recognize WMA among compressed audio formats. Converting AIFC to WMA targets these Windows-centric endpoints.
FFmpeg decodes the AIFC container to raw PCM samples and encodes using the WMA v2 codec (wmav2). WMA v2 operates at bitrates from 32 to 320 kbps using a perceptual audio coding model similar to MP3's but with Microsoft's proprietary modifications. The encoded bitstream is wrapped in an ASF (Advanced Systems Format) container, which is Microsoft's container format for WMA and WMV content. Metadata is stored in ASF header objects.
WMA v2 at 192 kbps produces quality comparable to MP3 at the same bitrate — good but not as efficient as AAC or Opus. At 128 kbps, WMA handles speech and simple music well but may show artifacts on complex material. WMA v2 is generally considered inferior to AAC at the same bitrate but comparable to MP3. From uncompressed AIFC PCM, the quality loss is typical for mid-generation lossy codecs.
| Device | AIFC | WMA |
|---|---|---|
| Windows PC | Partial | Native |
| macOS | Partial | Partial |
| iPhone/iPad | Partial | Partial |
| Android | Partial | Partial |
| Linux | Partial | Partial |
| Web Browser | No |
Resolution: N/A
Bitrate: 320 kbps
OGG Vorbis preferred
Resolution: N/A
Bitrate: 256 kbps
AAC format required
Resolution: N/A
Bitrate: 128 kbps
Lossless FLAC/WAV for best quality
Resolution: N/A
Bitrate: 128 kbps
MP3 mono for spoken word
AIFC to WMA converts Apple's legacy format into Microsoft's proprietary audio standard. This conversion is most relevant for Windows-only environments and legacy Microsoft devices that lack AAC support.
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| No |
| Funktion | AIFC | WMA |
|---|---|---|
| Fulde navn | AIFF-C Compressed Audio | Windows Media Audio |
| Filendelse | .aifc | .wma |
| Bedst til | Compressed AIFF | Windows native |