Convert AIFF-C Compressed Audio (.aifc) to iPad Audio (.ipad-audio) 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 .m4a file when it's ready.
AIFC (AIFF-Compressed) is the compressed variant of Apple's Audio Interchange File Format, capable of holding Mace, IMA ADPCM, or uncompressed PCM audio in an IFF-based container. While iPads can play standard AIFF files natively through Core Audio, AIFC support depends on the specific compression codec used — Mace-compressed AIFC files may not play on modern iPadOS versions that have dropped legacy QuickTime codec support. Converting AIFC to iPad Audio produces a universally compatible AAC or ALAC file that plays reliably on every iPad model.
Modern iPadOS has progressively removed support for legacy audio codecs. AIFC files using Mace 3:1 or 6:1 compression may fail to play on iPads running iPadOS 14 and later, even though they worked on older iPad models. Converting to iPad Audio (AAC/M4A) eliminates this compatibility risk and also reduces file sizes for efficient iPad storage use.
This conversion is relevant for educators, archivists, and multimedia professionals who encounter AIFC files in legacy Mac-based media collections, educational CD-ROMs, or institutional audio archives and need to make them playable on current iPad hardware for presentations, classroom use, or personal listening.
FFmpeg decodes the AIFC container, handling all compression variants (Mace 3:1/6:1, IMA ADPCM, uncompressed PCM). The decoded PCM audio is then encoded to AAC-LC at 256 kbps for standard quality or ALAC for lossless output, wrapped in an M4A container. The output includes Apple-compatible metadata and is optimized for iPad's Core Audio playback framework. Sample rate and channel layout from the original AIFC are preserved.
For Mace-compressed AIFC files (typically 22 kHz, 8-bit), the source quality is inherently limited — AAC at 128 kbps is more than sufficient to preserve the full quality. For uncompressed PCM AIFC files (44.1 kHz, 16-bit), AAC at 256 kbps provides transparent quality, and ALAC provides bit-perfect lossless output.
| Device | AIFC | iPad Audio |
|---|---|---|
| Windows PC | Partial | Partial |
| macOS | Partial | Partial |
| iPhone/iPad | Partial | Partial |
| Android | Partial | Partial |
| Linux | Partial | Partial |
| Web Browser |
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 iPad Audio ensures legacy compressed Apple audio plays reliably on modern iPads, eliminating compatibility issues with dropped Mace codec support in current iPadOS versions.
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| No |
| Tính năng | AIFC | iPad Audio |
|---|---|---|
| Tên đầy đủ | AIFF-C Compressed Audio | iPad Compatible Audio |
| Phần mở rộng | .aifc | .m4a |
| Phù hợp nhất cho | Compressed AIFF | iPad optimized |