News Column

Studies from Wuhan University in the Area of Audio, Speech and Music Processing Described

June 6, 2014

By a News Reporter-Staff News Editor at Science Letter -- Fresh data on Audio, Speech and Music Processing are presented in a new report. According to news originating from Wuhan, People's Republic of China, by NewsRx correspondents, research stated, "Three-dimensional (3D) audio technologies are booming with the success of 3D video technology. The surge in audio channels makes its huge data unacceptable for transmitting bandwidth and storage media, and the signal compression algorithm for 3D audio systems becomes an important task."

Our news journalists obtained a quote from the research from Wuhan University, "This paper investigates the conventional mid/side (M/S) coding method and discusses the signal correlation property of three-dimensional multichannel systems. Then based on the channel triple, a three-channel dependent M/S coding (3D-M/S) method is proposed to reduce interchannel redundancy and corresponding transform matrices are presented. Furthermore, a framework is proposed to enable 3D-M/S compress any number of audio channels. Finally, the masking threshold of the perceptual audio core codec is modified, which guarantees the final coding noise to meet the perceptual threshold constraint of the original channel signals."

According to the news editors, the research concluded: "Objective and subjective tests with panning signals indicate an increase in coding efficiency compared to Independent channel coding and a moderate complexity increase compared to a PCA method."

For more information on this research see: Expanded three-channel mid/side coding for three-dimensional multichannel audio systems. EURASIP Journal on Audio Speech and Music Processing, 2014;():1-13. EURASIP Journal on Audio Speech and Music Processing can be contacted at: Springer International Publishing Ag, Gewerbestrasse 11, Cham, Ch-6330, Switzerland (see also Audio, Speech and Music Processing).

The news correspondents report that additional information may be obtained from S. Dong, Wuhan University, Comp Sch, Natl Engn Res Center Multimedia Software, Wuhan 430072, People's Republic of China. Additional authors for this research include R.M. Hu, X.C. Wang, Y.H. Yang and W.P. Tu.

Keywords for this news article include: Wuhan, People's Republic of China, Asia, Audio, Speech and Music Processing

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Source: Science Letter

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