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http://dx.doi.org/10.7776/ASK.2009.28.7.610

MPEG Surround for Multi-Channel Audio Coding-Part 2: Various Modes and Tools  

Pang, Hee-Suk (세종대학교 전자공학과)
Publication Information
The Journal of the Acoustical Society of Korea / v.28, no.7, 2009 , pp. 610-617 More about this Journal
Abstract
An overview of various modes and tools of MPEG Surround is provided Because the binaural mode of MPEG Surround supports the virtual 5.1-channel playback based on HRTFs, it can be played via headphones and earphones for portable audio devices. MPEG Surround also supports the enhanced matrix mode which converts stereo signals to 5.1-channel signals without side information, the 3D stereo mode which deals with 3D-coded signals, the low power version which greatly reduces the computational load in the decoding process. Besides, MPEG Surround provides the arbitrary downmix gains (ADGs) tool which is applied to artistic downmix signals, the matrix compatibility tool which is applied to downmix signals by conventional matrix-based methods, the residual coding tool -which can be used at high bit rates, and the GES tool which is applied to specific sound such as applause. The listening test results by various companies and organizations are also presented for important modes and tools.
Keywords
MPEG Surround; Binaural Mode; HRTF; Enhanced Matrix Mode; Low Pwer Version;
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