Audio Format Codes

Compressed

Format

Description

mp4a

AAC

ac-3

Dolby Digital, AC-3

ima4

ADPCM

ADTS

Audio Data Transport Stream

aes3

AES/EBU

alaw

A-law

alac

Apple Lossless

samr

Adaptive Multi-Rate Narrow Band

sawb

Adaptive Multi-Rate Wide Band

dlbe

Dolby E

dts

DTS

dtsc

DTS Core

dtsh

DTS-HD

dtse

DTS-HD Low Bit Rate

dtsl

DTS-HD Lossless

udts

DTS-UHD

dtsx

DTS-UHD Profile 2

dtsy

DTS-UHD Profile 3

drm

Protected Audio

ec-3

Dolby Digital Plus, EAC-3

flac

Free Lossless Audio Codec

iab

Immersive Audio Bitstream

.mp3

MPEG Audio Layer 3

mpga

MPEG Audio

als

MPEG-4 Audio Lossless Coding (ALS)

ulaw

μ-law

302m

SMPTE 302M

331m

SMPTE 331M

s337

SMPTE ST 337

vorb

Vorbis

WMA1

Windows Media Audio 7/8

WMA2

Windows Media Audio 9

WMAP

Windows Media Audio 9/10 Professional

WMAL

Windows Media Audio 9 Lossless

WMAS

Windows Media Audio 9 Voice

Uncompressed (PCM)

Format

Description

fi32

PCM, 32-Bit Fixed Point

fl32

PCM, 32-Bit Big-Endian Floating Point

23lf

PCM, 32-Bit Little-Endian Floating Point

fl64

PCM, 64-Bit Big-Endian Floating Point

46lf

PCM, 64-Bit Little-Endian Floating Point

int8

PCM, 8-Bit Signed Integer

twos

PCM, 16-Bit Big-Endian Signed Integer

sowt

PCM, 16-Bit Little-Endian Signed Integer

in20

PCM, 20-Bit Big-Endian Signed Integer

02ni

PCM, 20-Bit Little-Endian Signed Integer

in24

PCM, 24-Bit Big-Endian Signed Integer

42ni

PCM, 24-Bit Little-Endian Signed Integer

in32

PCM, 32-Bit Big-Endian Signed Integer

23ni

PCM, 32-Bit Little-Endian Signed Integer

raw

PCM, 8-Bit Unsigned Integer

u16b

PCM, 16-Bit Big-Endian Unsigned Integer

u16l

PCM, 16-Bit Little-Endian Unsigned Integer

u24b

PCM, 24-Bit Big-Endian Unsigned Integer

u24l

PCM, 24-Bit Little-Endian Unsigned Integer

u32b

PCM, 32-Bit Big-Endian Unsigned Integer

u32l

PCM, 32-Bit Little-Endian Unsigned Integer


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