إم بي إي جي
Moving Picture Experts Group (MPEG) issued a "call for proposals" on MPEG Spatial Audio Coding in March 2004. The group decided that the technology that would be the starting point in standardization process, would be a combination of the submissions from two proponents - Fraunhofer IIS / Agere Systems and Coding Technologies / Philips. The MPEG Surround standard was developed by the Moving Picture Experts Group (ISO/IEC JTC1/SC29/WG11) and published as ISO/IEC 23003 in 2007. It was the first standard of MPEG-D standards group, formally known as "ISO/IEC 23003 - MPEG audio technologies".