AIFF-C common compression types[1][9][10] Compression type Compression name Data Source NONE not compressed PCM, big-endian Apple Inc. sowt not compressed PCM, little-endian Apple Inc. fl32 32-bit floating point IEEE 32-bit float Apple Inc. fl64 64-bit floating point IEEE 64-bit float Apple Inc. alaw ALaw 2:1 8-bit ITU-T G.711 A-law Apple Inc. ulaw μLaw 2:1 8-bit ITU-T G.711 μ-law Apple Inc.