Convert AIFF-C Compressed Audio (.aifc) to Ogg Vorbis (.ogg) online for free. Fast, secure audio conversion with no watermarks or registration.
Upload your .aifc file by dragging it into the upload area or clicking to browse.
Choose your output settings. The default settings work great for most files.
Click Convert and download your .ogg file when it's ready.
AIFC (AIFF-C) is Apple's compressed audio interchange format from the classic Mac OS era, supporting legacy codecs like IMA ADPCM, MACE 3:1/6:1, and G.711 alongside uncompressed PCM. OGG (Ogg Vorbis) is a patent-free, open-source lossy audio format developed by the Xiph.org Foundation, offering quality comparable to AAC at equivalent bitrates with complete freedom from licensing fees.
Converting AIFC to OGG moves legacy Apple audio into the open-source ecosystem. Ogg Vorbis is natively supported on Firefox, Chrome, Android, Linux, and countless open-source applications. This conversion is particularly relevant for Linux-centric workflows, open-source game development, and web audio where patent-free formats are preferred.
AIFC is a dead format with zero modern support. Ogg Vorbis thrives in the open-source world — it is the default audio format on Firefox and Chrome, natively supported on Android, and the standard for indie game audio. If your target platform is Linux, open-source software, or web applications that prefer patent-free codecs, OGG is the ideal target.
Ogg Vorbis at quality level 5 (~160 kbps VBR) delivers audio quality comparable to MP3 at 192 kbps, with better handling of stereo imaging and transients. The variable bitrate encoding efficiently allocates bits to complex passages while saving space during simple ones. For web audio, OGG's patent-free status eliminates any licensing concerns.
FFmpeg decodes the AIFC container to raw PCM samples, then encodes using libvorbis with variable bitrate encoding. The Vorbis encoder uses modified discrete cosine transform (MDCT) and psychoacoustic modeling to achieve efficient compression. Quality levels range from -1 (~45 kbps) to 10 (~500 kbps), with level 5 (~160 kbps) as the typical default for music. The encoded Vorbis bitstream is wrapped in the Ogg container with proper page sequencing and granule positions.
Ogg Vorbis at quality 5 (~160 kbps VBR) produces very good audio quality from uncompressed AIFC PCM sources — comparable to AAC at 160 kbps or MP3 at 192 kbps. Quality 7 (~224 kbps) is perceptually transparent for most listeners. Vorbis handles complex audio material (cymbals, reverb tails, stereo width) more gracefully than MP3 at equivalent bitrates. MACE-compressed AIFC sources will limit the achievable output quality.
| Device | AIFC | OGG |
|---|---|---|
| Windows PC | Partial | Partial |
| macOS | Partial | Partial |
| iPhone/iPad | Partial | Partial |
| Android | Partial | Native |
| Linux | Partial | Native |
| 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 OGG converts Apple's obsolete format into the premier open-source audio standard. Ogg Vorbis delivers excellent quality-to-size ratio with complete freedom from patent licensing.
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| Native |
| Funktion | AIFC | OGG |
|---|---|---|
| Fulde navn | AIFF-C Compressed Audio | Ogg Vorbis |
| Filendelse | .aifc | .ogg |
| Bedst til | Compressed AIFF | Open source |