"Spatial audio processing: MPEG Surround and other applications" provides a comprehensive overview of recent trends in stereo and multi-channel audio compression technology. It brings together information on the processing, acquisition, mixing, playback, and perception of spatial audio, with the latest coding techniques. It also provides detailed information on recent audio compression standards, such as MPEG Surround and aacPlus (Parametric Stereo).

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Several VST plugins have been released or updated (Send, Ferox, Barricade, Omniverb, Omnisone). New versions can be downloaded at the VST plugin page.

MPEG Surround, an extension of Spatial Audio Coding technology towards multi-channel audio has recently been finalized. Find out more on the MPEG Surround standard here.

Parametric Stereo is a technique for an extremely bit-efficient representation of stereo audio signals, developed at Philips in cooperation with Coding Technologies. It employs Spatial Audio Coding (SAC) techniques to provide unsurpassed compression efficiency. It is currently standardized as part of aacPlus v2 in MPEG-4 and the next generation standard for mobile communication, 3GPP.

The inventor story on Parametric Stereo is here
(source: www.patents4innovation.com).