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01-Applied Mathematics & Information Sciences
An International Journal


Volumes > Volume 7 > No. 2L


Research of Spatial Parameter Codec in MDCT Domain

PP: 417-423
Cao Sheng, Hu Ruimin, Peng Yuxing, Liu Yutian,
With stereo audio stepping into people’s daily lives, spatial parametric technology comes to its broad prospects for development. Spatial parameteric technology is a method for stereo compression. MDCT is excluded in the current scheme for spatial cues representation, due to its lacking of phase information and energy conservation. In this paper, Construction of new spatial parameter codec framework in MDCT domain, and Optimization of calculating for the new module, to reduce computational complexity of the system.Through the research, implementation, and testing of this two parts, the new spatial parameter codec system, which is constructed in this subject, completes all the basic functions of spatial parametric technology. To compare with the EaacPlus system, the output stereo of the new system gains a considerable subjective and objective test scores. This research makes a contribution to the spatial parametric technology in MDCT domain, and provides a new train of thought to reduce complexity of EaacPlus system.

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