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https://doi.org/10.1109/ICME.2006.262665
Title: | Efficient partial spectrum reconstruction using an asymmetric PQMF algorithm for MPEG-coded stereo audio | Authors: | Huang, W. Wang, Y. |
Issue Date: | 2006 | Citation: | 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 | URI: | http://scholarbank.nus.edu.sg/handle/10635/42181 | ISBN: | 1424403677 | DOI: | 10.1109/ICME.2006.262665 |
Appears in Collections: | Staff Publications |
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