The title given to this article is incorrect due to technical limitations. The correct title is aacPlus.

aacPlus is a lossy data compression scheme for audio streams. It is based on MPEG-4, and combines three techniques: Advanced Audio Coding (AAC), Spectral Band Replication (SBR), and parametric stereo (PS).

aacPlus was standardized by the MPEG under the "High Efficiency AAC" (HE-AAC) name.

aacPlus is supported in the free FAAD2 decoding library, and hence in many free players, and in Winamp and foobar2000.

External links

• Radiostations using the aacPlus codec (http://www.tuner2.com/)
• aacPlus explained (http://www.codingtechnologies.com/products/aacPlus.htm)
• Open Source AAC codec (http://www.audiocoding.com/) FAAC (encoder) and FAAD2 (decoder)