It supports the following audio data and file formats:ĭata_formats: 'Qclp' 'aac ' 'aace' 'aacf' 'aacg' 'aach'ĭata_formats: I8 BEI16 BEI24 BEI32 BEF32 BEF64 UI8 'ulaw' There are other possible arguments, open a Terminal and enter the following to detail the full list of arguments: These are the basic arguments:Īfconvert -d -f Audio File Convert will convert a source audio file to a new audio file with the specified file and data types.
This perhaps the most useful of the three command-line utilities. The afplay utility is particularly useful when experimenting with compressing a file at different bit rates and listening to how the result sounds. Afplay -t 10 -v 0.5 -q high '/Applications/iPhoto.app/Contents/Resources/Music/Minuet in G.mp3'