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Journal Article
An Efficient Time-Frequency Representation for Parametric-Based Audio Object Coding
- Authors
- Seungkwon Beack, Taejin Lee, Minje Kim, Kyeongok Kang
- Issue Date
- 2011-12
- Citation
- ETRI Journal, v.33, no.6, pp.945-948
- ISSN
- 1225-6463
- Publisher
- 한국전자통신연구원 (ETRI)
- Language
- English
- Type
- Journal Article
- Abstract
- Object-based audio coding can provide new music applications with interactivity. To efficiently compress a lot of target audio objects, a subband-based parametric coding scheme has been adopted for MPEG spatial audio object coding. In this letter, the time-frequency (T/F) subband analysis structure is investigated. A reconfigured T/F structure is also proposed to enhance the generating performance of sound scenes such as 'karaoke' and 'solo' play in interactive music scenarios. From the experimental results, it was confirmed that the proposed scheme remarkably improves the SNR and sound quality. © 2011 ETRI.
- KSP Keywords
- Audio coding, Interactive music, Object-based audio, Spatial audio object coding, Time-Frequency representation, coding scheme, parametric coding, sound quality, subband analysis, time frequency(T-F)