The codec developer says Extended HE-AAC significantly improves the audio quality of music and speech, particularly at very low bit rates of 8 kbps and more, and is compatible with HE-AAC streams.
As a result, Extended HE-AAC can improve the quality of existing low bitrate services or more audio channels can be transmitted at a given bit rate, according to Fraunhofer.
ISO MPEG initiated this standardization activity in 2008, when a call for proposals on unified speech and audio coding technology was issued. Fraunhofer has been a driver of the standardization process.
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