DRM's mandatory codec combines speech and audio coding at ultra low bit rate
xHE-AAC (Extended HE-AAC), the latest upgrade to the MPEG AAC codec family, is the audio codec of choice for digital radio and low bit rate streaming applications. Selected as the mandatory audio codec for DRM (Digital Radio Mondiale), xHE-AAC bridges the gap between speech and audio coding, and provides consistent high quality audio for all signal types, such as talk radio, a music program or a jingle. Another important feature is the codec’s coding efficiency. Starting at 8 kbit/s mono, xHE-AAC allows the transmission of good audio quality and, in addition, the delivery of more audio programs. xHE AAC therefore enables new services even on bit rate constrained networks.