How To Install Ac3 Audio Codec Mac Osx

How To Install Ac3 Audio Codec Mac Osx Average ratng: 3,8/5 6185 reviews

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This appendix describes the audio data and file formats supported in Core Audio in OS X v10.5.

Each audio file type lists the data formats supported for that type. That is, a converter exists to convert data from the particular file format to any of the listed data formats. Some data formats (such as AC3) cannot be converted to a linear PCM format and therefore cannot be handled by standard audio units.

A Core Audio Format (CAF) file can contain audio data of any format. Any application that supports the CAF file format can write audio data to the file or extract the data it contains. However, the ability to encode or decode the audio data contained within it is dependent on the audio codecs available on the system.

**Table D-1** Allowable data formats for each file format.
File Format	Data Formats
AAC (`.aac`, `.adts`)	`'aac '`
AC3 (`.ac3`)	`'ac-3'`
AIFC (`.aif`, `.aiff`,`.aifc`)	`BEI8`, `BEI16`, `BEI24`, `BEI32`, `BEF32`, `BEF64`, `'ulaw'`, `'alaw'`, `'MAC3'`, `'MAC6'`, `'ima4'` , `'QDMC'`, `'QDM2'`, `'Qclp'`, `'agsm'`
AIFF (`.aiff`)	`BEI8`, `BEI16`, `BEI24`, `BEI32`
Apple Core Audio Format (`.caf`)	`'.mp3'`, `'MAC3'`, `'MAC6'`, `'QDM2'`, `'QDMC'`, `'Qclp'`, `'Qclq'`, `'aac '`, `'agsm'`, `'alac'`, `'alaw'`, `'drms'`, `'dvi '`, `'ima4'`, `'lpc '`, `BEI8`, `BEI16`, `BEI24`, `BEI32`, `BEF32`, `BEF64`, `LEI16`, `LEI24`, `LEI32`, `LEF32`, `LEF64`, `'msx00x02'`, `'msx00x11'`, `'msx001'`, `'msx00U'`, `'ms x00'`, `'samr'`, `'ulaw'`
MPEG Layer 3 (`.mp3`)	`'.mp3'`
MPEG 4 Audio (`.mp4`)	`'aac '`
MPEG 4 Audio (`.m4a`)	`'aac '`, `alac'`
NeXT/Sun Audio (`.snd`, `.au`)	`BEI8`, `BEI16`, `BEI24`, `BEI32`, `BEF32`, `BEF64`, `'ulaw'`
Sound Designer II (`.sd2`)	`BEI8`, `BEI16`, `BEI24`, `BEI32`
WAVE (`.wav`)	`LEUI8`, `LEI16`, `LEI24`, `LEI32`, `LEF32`, `LEF64`, `'ulaw'`, `'alaw'`

Key for linear PCM formats. For example, BEF32 = Big Endian linear PCM 32 bit floating point.

**Table D-2** Key for linear PCM formats
`LE`	Little Endian
`BE`	Big Endian
`F`	Floating point
`I`	Integer
`UI`	Unsigned integer
`8/16/24/32/64`	Number of bits

Core Audio includes a number of audio codecs that translate audio data to and from Linear PCM. Codecs for the following audio data type are available in OS X v10.4. Audio applications may install additional encoders and decoders.

Audio data type	Encode from linear PCM?	Decode to linear PCM?
MPEG Layer 3 (`'.mp3'`)	No	Yes
MACE 3:1 (`'MAC3'`)	Yes	Yes
MACE 6:1 (`'MAC6'`)	Yes	Yes
QDesign Music 2 (`'QDM2'`)	Yes	Yes
QDesign (`'QDMC'`)	No	Yes
Qualcomm PureVoice (`'Qclp'`)	Yes	Yes
Qualcomm QCELP (`'qclq'`)	No	Yes
AAC (`'aac ')`	Yes	Yes
Apple Lossless (`'alac'`)	Yes	Yes
Apple GSM 10:1 (`'agsm'`)	No	Yes
ALaw 2:1 `'alaw'`)	Yes	Yes
Apple DRM Audio Decoder (`'drms'`)	No	Yes
AC-3	No	No
DVI 4:1 (`'dvi '`)	No	Yes
Apple IMA 4:1 (`'ima4'`)	Yes	Yes
LPC 23:1 (`'lpc '`)	Street legal racing redline buy licenc crack. No	Yes
Microsoft ADPCM	No	Yes
DVI ADPCM	Yes	Yes
Aiwa cx-na909 manual. GSM610	No	Yes
AMR Narrowband (`'samr'`)	Yes	Yes
µLaw 2:1 (`'ulaw'`)	Yes	Yes