afconvert
Convert between AFF and raw file formats.
TLDR
Use a specific extension (default: aff)
$ afconvert -a [extension] [path/to/input_file] [path/to/output_file1 path/to/output_file2 ...]
Use a specific compression level (default: 7)
$ afconvert -X[0..7] [path/to/input_file] [path/to/output_file1 path/to/output_file2 ...]
