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|Title:||Efficient partial spectrum reconstruction using an asymmetric PQMF algorithm for MPEG-coded stereo audio|
|Source:||Huang, W., Wang, Y. (2006). Efficient partial spectrum reconstruction using an asymmetric PQMF algorithm for MPEG-coded stereo audio. 2006 IEEE International Conference on Multimedia and Expo, ICME 2006 - Proceedings 2006 : 901-904. ScholarBank@NUS Repository. https://doi.org/10.1109/ICME.2006.262665|
|Abstract:||This paper presents a novel algorithm of a scalable and efficient Pseudo-Quadrature Mirror Filters (PQMF), which is employed for partial decoding a single-layer audio bitstream such as MP3, typically coded in joint/MS mode. The proposed algorithm is a new extension to our previous work on scalable audio decoding and is designed for asymmetric partial spectrum reconstruction (APSR), where perceptually irrelevant computations are removed. Furthermore, an efficient up-sampling operation is introduced for right channel output. The slight distortions introduced by our simple up-sampling method are inaudible according to a set of perceptual evaluations. Simulation results show that 64.6% energy savings can be achieved for a typical configuration in comparison to the standard PQMF algorithm employed by MPEG-1 audio. © 2006 IEEE.|
|Source Title:||2006 IEEE International Conference on Multimedia and Expo, ICME 2006 - Proceedings|
|Appears in Collections:||Staff Publications|
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