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Journal Article
Single-Mode-Based Unified Speech and Audio Coding by Extending the Linear Prediction Domain Coding Mode
- Authors
- Seungkwon Beack, Jongmo Seong, Misuk Lee, Taejin Lee
- Issue Date
- 2017-06
- Citation
- ETRI Journal, v.39, no.3, pp.310-318
- ISSN
- 1225-6463
- Publisher
- 한국전자통신연구원 (ETRI)
- Language
- English
- Type
- Journal Article
- Abstract
- Unified speech and audio coding (USAC) is one of the latest coding technologies. It is based on a switchable coding structure, and has demonstrated the highest levels of performance for both speech and music contents. In this paper, we propose an extended version of USAC with a single-mode of operation which does not require a switching system by extending the linear predictioncoding mode. The main concept of this extension is the adoption of the advantages of frequency-domain coding schemes, such as windowing and transition control. Subjective test results indicate that the proposed scheme covers speech, music, and mixed streams with adequate levels of performance. The obtained quality levels are comparable with those of USAC.
- KSP Keywords
- Linear prediction, Mode of Operation, Quality level, Single mode, Subjective test, Transition control, Unified Speech and Audio Coding(USAC), frequency domain(FD), switching system
This work is distributed under the term of Korea Open Government License (KOGL)
(Type 4: : Type 1 + Commercial Use Prohibition+Change Prohibition)
(Type 4: : Type 1 + Commercial Use Prohibition+Change Prohibition)
