For the purpose of this paper we will concentrate on the format mostly used for Inter-net audio and flash memory based portable audio devices, MPEG-1/2 Layer-3 (aka MP3), and the …
The “High Eficiency Profile” (HE-AAC) is the combination of MPEG-4 AAC-LC with the parametric SBR (Spectral Band Replication) tool, which allows a further reduction of overall bitrate while …
In summary, MPEG-4 AAC, HE-AAC, and HE-AAC V2 make up the decoder family. Based on different compression efficiency requirements, the appropriate one from them can be chosen …
In the case of audio content, the MPEG-4 High Efficiency AAC v2 profile (HE-AAC v2) has proven, in several independent tests, to be the most efficient audio compression scheme …
One could also make an MPEG compliant AAC encoder which always produces constant length packages for each AAC frame, but the audio quality would be considerably worse since the bit …
In 2005, the third edition of the MPEG-4 Audio standard was published that comprises all three technologies contained in HE-AAC (i.e., MPEG-4 Advanced Audio Coding, Spectral Band …
Comparison to other codecs: AAC 96 kbit/sec stereo comparable to AC-3 at 160 kbit/s Layer II at 192 kbit/s Layer III at 128 kbit/s Very low bitrates (comparison within MPEG): AAC best audio …