@inproceedings{9511020845db4413be167a0961c0728f,
title = "Enhanced principal component using polar coordinate PCA for stereo audio coding",
abstract = "High efficiency audio compression is the basic technology in audio involved multimedia application. Down mixing and parametric coding are efficient coding scheme with widely applications in some up to date audio codecs such as PS in EAAC+ and MPEG-Surround, and PCA stereo coding followed this idea to map two channels to one channel with maximum energy and parameterize the secondary channel. This paper investigates the conventional PCA method performance under general stereo model with multiple sound sources and different directions, and then proposes a Polar Coordinate based PCA (PC-PCA) stereo coding method. It has been proved that when multiple sound sources exist with different directions, proposed method is better than the conventional PCA method in certain conditions. A stereo codec based on PC-PCA has also been proposed to validate the performance improvement of proposed method.",
keywords = "Audio compression, PCA, Stereo audio",
author = "Shi Dong and Ruimin Hu and Weiping Tu and Xiang Zheng and Junjun Jiang and Song Wang",
year = "2012",
doi = "10.1109/ICME.2012.22",
language = "英语",
isbn = "9781467316590",
series = "Proceedings - IEEE International Conference on Multimedia and Expo",
publisher = "IEEE Computer Society",
pages = "628--633",
booktitle = "Proceedings - 2012 IEEE International Conference on Multimedia and Expo, ICME 2012",
address = "美国",
note = "13th IEEE International Conference on Multimedia and Expo, ICME 2012 ; Conference date: 09-07-2012 Through 13-07-2012",
}