IEC 61937-11:2010 describes the method to convey non-linear PCM bitstreams encoded according to the MPEG-4 AAC format and its extensions spectral band replication, parametric stereo and MPEG surround, framed in MPEG-4 LATM/LOAS. This bilingual version, published in 2011-01, corresponds to the English version. The French version of this standard has not been voted upon.