Bulk M4R to AIFC Converter Online — Free HD Quality
Drag and drop your multiple M4R files into this 100% free online M4R to AIFC converter (.m4r to .aifc), and click the Convert button to bulk convert them to AIFC format in HD quality. Use the quality slider to fine-tune your AIFC output, then download your converted files one by one or as a single ZIP — no signup and no downloads needed, and your original M4R files are removed from our servers right after. Also see:Switch MP3 to OGA format.
Drop your M4R files here to convert to AIFC, or click to browse
Converts .m4r to AIFC (.aifc) in HD quality — bulk, free, no signup
Choose FilesM4R vs AIFC — File Format Comparison
See how M4R and AIFC compare across file extension, MIME type, compression, and feature support. Related:How to convert M4R to ALAC online?.
| Feature | M4R | AIFC |
|---|---|---|
| File Extension | .m4r | .aifc |
| MIME Type | audio/mp4 | audio/x-aifc |
| Compression Type | Lossy | Lossy |
| Metadata Support | Yes | Yes |
What Is M4R Format?
iPhone Ringtone — AAC audio in an MP4 container under 40 seconds, the format iTunes and iPhone use for custom ringtones; identical to M4A in encoding but recognised by iOS as a ringtone file.
- Compression: Lossy
- Tags & Metadata: Supported
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.
- Compression: Lossy
- Tags & Metadata: Supported