m4b editor
Files
Advanced options
Audio codec
passthrough
AAC
ALAC
Sample rate
passthrough
8,000 Hz
11,025 Hz
16,000 Hz
22,050 Hz
44,100 Hz
48,000 Hz
88,200 Hz
96,000 Hz
Bit rate
passthrough
16 kbps
32 kbps
64 kbps
128 kbps
192 kbps
256 kbps
Bit depth
passthrough
16
24
32
for iPod
Run
Download
Output
Debug