Bulk AIFC to M4B Converter Online — Free HD Quality
Drag and drop your multiple AIFC files into this 100% free online AIFC to M4B converter (.aifc to .m4b), and click the Convert button to bulk convert them to M4B format in HD quality. Use the quality slider to fine-tune your M4B output, then download your converted files one by one or as a single ZIP — no signup and no downloads needed, and your original AIFC files are removed from our servers right after. Also see:Convert multiple WAV to M4R at once.
Drop your AIFC files here to convert to M4B, or click to browse
Converts .aifc to M4B (.m4b) in HD quality — bulk, free, no signup
Choose FilesAIFC vs M4B — File Format Comparison
See how AIFC and M4B compare across file extension, MIME type, compression, and feature support. Related:Mass AIFC to MP2 conversion.
| Feature | AIFC | M4B |
|---|---|---|
| File Extension | .aifc | .m4b |
| MIME Type | audio/x-aifc | audio/mp4 |
| Compression Type | Lossy | Lossy |
| Metadata Support | Yes | Yes |
What Is AIFC Format?
Compressed AIFF — an extension of AIFF that supports compressed audio codecs (SOWT, ulaw, alaw, MAC3) inside the AIFF container, used in legacy Apple and SGI audio workflows. See also:Convert AIFC to M4R.
- Compression: Lossy
- Tags & Metadata: Supported
What Is M4B Format?
MPEG-4 Audiobook — AAC audio in an MP4 container with bookmarking support, the standard format for audiobooks on Apple Books, Audible exports, and iPhone podcasts.
- Compression: Lossy
- Tags & Metadata: Supported