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Journal Article
An Efficient Representation Method for ICLD with Robustness to Spectral Distortion
- Authors
- Seung Kwon Beack, Jeong Il Seo, Kyung Ok Kang, Min Soo Hahn
- Issue Date
- 2005-06
- Citation
- ETRI Journal, v.27, no.3, pp.330-333
- ISSN
- 1225-6463
- Publisher
- 한국전자통신연구원 (ETRI)
- Language
- English
- Type
- Journal Article
- Abstract
- 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.