Advanced Audio Coding: Difference between revisions

From MultimediaWiki
Jump to navigation Jump to search
(→‎AAC+: Typos)
m (Supported by FFmpeg)
Line 32: Line 32:
[[Category: MDCT Audio Codecs]]
[[Category: MDCT Audio Codecs]]
[[Category: Multichannel Audio Codecs]]
[[Category: Multichannel Audio Codecs]]
[[Category: Formats missing in FFmpeg]]

Revision as of 03:44, 2 September 2008

  • FOURCCS: ????
  • Company: ISO

Specification and reference source links.

Intel has source for its IPP based AAC decoder:

Real Networks has source for its Helix AAC fixedpoint decoder here:

Usually stored in an MP4 container.

See also Understanding AAC.



AACPlus (a.k.a. AAC+) is LC-AAC + SBR (Spectral Band Replication) and aacPlus v2 means LC-AAC + SBR (Spectral Band Replication) + PS (Parametric Stereo). Standard LC-AAC decoders can decode aacPlus encoded files/streams but without SBR and PS you do not get the full quality.

GAIN headers

See and MP3 GAIN header.