Convert M4B to CAF
Convert M4B files to CAF format online for free. No upload required, 100% private.
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M4BCAFQuality Note
Converting from M4B (lossy) to CAF (Lossless) will increase file size but will NOT improve audio quality. The quality lost during the original compression cannot be recovered.
About M4B
M4B
MPEG-4 Audiobook
M4B is an audiobook format based on MPEG-4. It supports chapters, bookmarks, and is the standard format for iTunes and Audible audiobooks.
Extension
.m4b
Developed By
Apple Inc.
Released
2001
Compression
LossyTypical Use Cases
AudiobooksPodcasts with chaptersLong-form audio content
Pros
- • Chapter support
- • Bookmark support
- • Good compression
Cons
- • Limited to Apple ecosystem
- • Not universal
- • Requires specific players
About CAF
CAF
Core Audio Format
CAF is a flexible audio container format developed by Apple. It can store any audio format supported by Core Audio and has no file size limitations.
Extension
.caf
Developed By
Apple Inc.
Released
2005
Compression
LosslessTypical Use Cases
iOS developmentMac audio appsLong recordingsProfessional audio
Pros
- • No size limit
- • Flexible codec support
- • Apple ecosystem
Cons
- • Apple only
- • Limited cross-platform
- • Requires conversion for sharing