(RFC 3190 published January 2002, subtype last updated January 2002)

MIME media type name: audio

MIME subtype name: L24

Required parameters:
  rate: number of samples per second -- RECOMMENDED values for rate
	 are 8000, 11025, 16000, 22050, 24000, 32000, 44100 and 48000
	 samples per second.  Other values are permissible.

Optional parameters:
  channels: how many audio streams are interleaved -- defaults to 1;
	 stereo would be 2, etc.  Interleaving takes place between
	 individual 24-bit samples.

  emphasis: analog preemphasis applied to the data before
	 quantization.  The only emphasis value defined here is
	 emphasis=50-15 to indicate 50/15 microsecond preemphasis.  This
	 parameter MUST be omitted if no analog preemphasis was applied.

  channel-order: specifies the sample interleaving order for
	 multiple-channel audio streams (see Section 7).  Permissible
	 values are DV.LRLsRs, DV.LRCS, DV.LRCWo, DV.LRLsRsC,
	 DV.LRLsRsCS, DV.LmixRmixTWoQ1Q2, DV.LRCWoLsRsLmixRmix,
	 DV.LRCWoLs1Rs1Ls2Rs2, DV.LRCWoLsRsLcRc.  This parameter MUST be
	 omitted when the AIFF-C channel order convention is in use.

Encoding considerations:
  L24 audio can be transmitted with RTP as specified in RFC 3190.

Security considerations: See Section 9.

Interoperability considerations: NONE

Published specification:
  RFC 3190.

Applications which use this media type:
  Audio communication.

Additional information:
  Magic number(s): None
  File extension(s): None
  Macintosh File Type Code(s): None

Person & email address to contact for further information:
  Katsushi Kobayashi
  e-mail: ikob&koganei.wide.ad.jp

Intended usage: COMMON

Author/Change controller:
  Katsushi Kobayashi
  e-mail: ikob&koganei.wide.ad.jp