
Sun's Audio file format is a binary format with the exception that the first 4 bytes -- a identification of ".snd" or otherwise in hex as 0x2e736e64. Successful ways to reduce the size of .au audio files: 1) Removing the entire header and description sections of a AU audio file will still allow the file to play and makes the file smaller. 2) Empty air may be removed from a file by removing large chunks of 'ΓΏ's.