Open AccessAn Efficient Representation Method for ICLD with Robustness to Spectral Distortion
Author(s) -
Beack Seungkwon,
Seo Jeongil,
Kang Kyungok,
Hahn Minsoo
Publication year - 2005
Publication title -
etri journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.295
H-Index - 46
eISSN - 2233-7326
pISSN - 1225-6463
DOI - 10.4218/etrij.05.0205.0022
Subject(s) - quantization (signal processing) , robustness (evolution) , algorithm , computer science , speech recognition , sub band coding , coding (social sciences) , bit rate , mathematics , speech coding , computer engineering , statistics , biochemistry , chemistry , gene
The inter‐channel level difference (ICLD) is a cue parameter to estimate spectral information in binaural cue coding that has been recently in the spotlight as a multichannel audio signal compression technique. Even though the ICLD is an essential parameter, it is generally distorted by quantization. In this paper, a new modified ICLD representation method to minimize the quantization distortion is proposed by adopting a flexible determination of the reference channel and the unidirectional quantization scheme. Our experimental result confirms that the proposed method improves the multichannel audio output quality even with the reduced bit‐rate.