Compression transparent low-level description of audio signals

被引：0
|
作者：
Lukasiak, J [1 ]
McElroy, C [1 ]
Cheng, E [1 ]
机构：
[1] Univ Wollongong, TITR, Wollongong, NSW 2500, Australia
来源：
2005 IEEE INTERNATIONAL CONFERENCE ON MULTIMEDIA AND EXPO (ICME), VOLS 1 AND 2 | 2005年
关键词：
D O I：
10.1109/ICME.2005.1521450
中图分类号：
TP18 [人工智能理论];
学科分类号：
081104 ; 0812 ; 0835 ; 1405 ;
摘要：
A new low level audio descriptor that represents the psychoacoustic noise floor shape of an audio frame is proposed. Results presented indicate that the proposed descriptor is far more resilient to compression noise than any or the MPFG-7 low level audio descriptors. In fact. across a wide range or files. on average the proposed scheme fails to uniquely identify only five frames in every ten thousand. In addition. the proposed descriptor maintains a high resilience to compression noise even when decimated to use only one quarter of the values per frame to represent the noise floor. This characteristic indicates the proposed descriptor presents a truly scalable mechanism for transparently describing the characteristics of an audio frame.
引用
收藏
页码：422 / 425
页数：4
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