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Oracle® interMedia Reference
10g Release 2 (10.2)

Part Number B14297-01
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A Audio File and Compression Formats

The following sections describe the audio file and compression formats and other audio features supported by Oracle interMedia ("interMedia").

Find the data format you are interested in, and then determine the supported formats. For example, Section A.1 shows that interMedia supports AIFF format for single channel, stereo, 8-bit and 16-bit samples, linear PCM encoding, and uncompressed format.

A.1 Supported AIFF Data Formats

The supported AIFF format ID, file format, file extension, MIME type, audio features, compression format, and encoding/compression type are the following:

A.2 Supported AIFF-C Data Formats

The supported AIFF-C format ID, file format, file extension, MIME type, and audio features are the following:

Table A-1 lists the supported AIFF-C data compression format names and encoding/compression types.

Table A-1 Supported AIFF-C Data Compression Formats and Types

Compression Formats Encoding/Compression Types
Not compressed Uncompressed (TWOS)
ACE 2-to-1 ACE2
ACE 8-to-3 ACE8
MACE 3-to-1 MAC3
MACE 6-to-1 MAC6

A.3 Supported AU Data Formats

The supported AU format ID, file format, file extension, MIME type, and audio features are the following:

Table A-2 lists the supported AU data compression format names and encoding/compression types.

Table A-2 AU Data Compression Formats and Types

Compression Format Encoding/Compression Types
Unspecified format UNSPECIFIED
8-bit mu-law samples MULAW
8-bit linear samples LINEAR
16-bit linear samples LINEAR
24-bit linear samples LINEAR
32-bit linear samples LINEAR
Floating-point samples FLOAT
Double-precision float samples DOUBLE
Fragmented sample data FRAGMENTED
Nested format NESTED
DSP program DSP_CORE
8-bit fixed-point samples DSP_DATA
16-bit fixed-point samples DSP_DATA
24-bit fixed-point samples DSP_DATA
32-bit fixed-point samples DSP_DATA
Unknown AU format UNKNOWN
Nonaudio display data DISPLAY
Squelch format MULAW_SQUELCH
16-bit linear with emphasis EMPHASIZED
16-bit linear with compression COMPRESSED
16-bit linear with emphasis and compression COMPRESSED_EMPHASIZED
Music Kit DSP commands DSP_COMMANDS
DSP commands samples DSP_COMMANDS_SAMPLES
ADPCM G721 ADPCM_G721
ADPCM G722 ADPCM_G722
ADPCM G723_3 ADPCM_G723_3
ADPCM G723_5 ADPCM_G723_5
8-bit a-law samples ALAW

A.4 Supported 3GP Data Format

The supported 3GP format ID, file format, file extension, and MIME type are the following:

A.5 Supported Audio MPEG Data Formats

The supported audio MPEG formats are MPEG1, MPEG2, and MPEG4, as described in the following sections.

A.5.1 Supported MPEG1 and MPEG2 Data Formats

The MPEG1 and MPEG2 format ID, file format, file extension, MIME type, and audio features are the following:

  • Format ID: MPEG

  • File format: MPGA

  • File extension: .mpg

  • MIME type: audio/mpeg

  • Audio Features:

    • Layer I

    • Layer II

    • Layer III

Table A-3 lists the supported audio MPEG1 and MPEG2 data compression format names and encoding/compression types.

Table A-3 Audio MPEG1 and MPEG2 Compression Formats and Types

Compression Formats Encoding/Compression Types
MPEG Audio, Layer I LAYER1
MPEG Audio, Layer II LAYER2
MPEG Audio, Layer III LAYER3

A.5.2 Supported MPEG4 Data Formats

The MPEG4 format ID, file format, file extension, and MIME type features are the following:

  • Format ID: MP4

  • File format: MP4

  • File extension: .mp4

  • MIME type: audio/mp4

A.6 Supported RealNetworks Real Audio Data Format

The supported RealNetworks Real Audio format ID, file format, file extensions, MIME type, and audio features are the following:

A.7 Supported WAV Data Formats

The supported WAV format ID, file format, file extension, MIME type, and audio features are the following:

Table A-4 lists the supported WAV data compression format names and encoding/compression types.

Table A-4 WAV Data Compression Formats and Types

Compression Formats Encoding/Compression Types
Unknown Wave Format UNKNOWN
Microsoft PCM Wave Format MS_PCM
Microsoft ADPCM Wave Format MS_ADPCM
IBM CVSD Wave Format IBM_CVSD
Microsoft aLaw Wave Format ALAW
Microsoft mu-Law Wave Format MULAW
OKI ADPCM Wave Format OKI_ADPCM
Intel DVI/IMA ADPCM Wave Format DVI_ADPCM
VideoLogic Media Space ADPCM Wave Format MEDIASPACE_ADPCM
Sierra Semiconductor ADPCM Wave Format SIERRA_ADPCM
Antex Electronics G723 ADPCM Wave Format ANTEX_G723_ADPCM
DSP Solutions DIGISTD Wave Format DIGISTD
DSP Solutions DIGIFIX Wave Format DIGIFIX
Dialogic OKI ADPCM Wave Format DIALOGIC_OKI_ADPCM
Yamaha ADPCM Wave Format YAMAHA_ADPCM
Speech Compression Sonarc Wave Format SONARC
DSP Group TrueSpeech Wave Format DSPGROUP_TRUESPEECH
Echo Speech Wave Format ECHOSC1
Audiofile AF36 Wave Format AUDIOFILE_AF36
Audio Processing Technology Wave Format APTX
Audiofile AF10 Wave Format AUDIOFILE_AF10
Dolby AC-2 Wave Format DOLBY_AC2
Microsoft GSM 610 Wave Format MS_GSM610
Antex Electronics ADPCME Wave Format ANTEX_ADPCME
Control Resources VQLPC Wave Format CONTROL_RES_VQLPC
DSP Solutions DIGIREAL Wave Format DIGIREAL
DSP Solutions DIGIADPCM Wave Format DIGIADPCM
Control Resources CR10 Wave Format CONTROL_RES_CR10
Natural Microsystems NMS VBXADPCM Wave Format NMS_VBXADPCM
Crystal Semiconductor IMA ADPCM Wave Format CS_IMAADPCM
Antex Electronics G721 ADPCM Wave Format ANTEX_G721_ADPCM
MPEG-1 Audio Wave Format MPEG
Creative Labs ADPCM Wave Format CREATIVE_ADPCM
Creative Labs FastSpeech8 Wave Format CREATIVE_FASTSPEECH8
Creative Labs FastSpeech10 Wave Format CREATIVE_FASTSPEECH10
Fujitsu FM Towns Wave Format FM_TOWNS_SND
Olivetti GSM Wave Format OLIGSM
Olivetti ADPCM Wave Format OLIADPCM
Olivetti CELP Wave Format OLICELP
Olivetti SBC Wave Format OLISBC
Olivetti OPR Wave Format OLIOPR