In addition to demonstrating “Full HD Voice” at Mobile World Congress, Fraunhofer IIS will premiere Extended HE-AAC, the latest upgrade to the MPEG AAC family.
According to Fraunhofer, Extended HE-AAC significantly improves the audio quality of music and speech, particularly at very low bit rates of 8 kbit/s and more. It is compatible with HE-AAC streams.
By adding a new set of encoding tools to the HE-AACv2 audio codec, Fraunhofer says Extended HE-AAC outperforms dedicated speech and general audio coding schemes and “bridges the gap between both worlds, providing consistent high quality audio for all signal types.”
Implementers have the choice of either improving the quality of existing low bit rate services or adding more audio channels within existing bandwidth.
HE-AAC and Extended HE-AAC fall into the Fraunhofer’s category of “Under 64 kbps” codecs.