A novel scalable audio coding scheme
A new scalable audio coding scheme is introduced in this paper. Its core idea is to create one additional scalability dimension during the encoding process for the purpose of generating a plural of scalable sub-bitstreams. Based on the multiple sub-streams, a smart truncator is designed that can tru...
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| Veröffentlicht in: | Proceedings of the ... IEEE International Conference on Acoustics, Speech and Signal Processing (1998) S. 533 - 537 |
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IEEE
01.05.2013
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| ISSN: | 1520-6149 |
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| Abstract | A new scalable audio coding scheme is introduced in this paper. Its core idea is to create one additional scalability dimension during the encoding process for the purpose of generating a plural of scalable sub-bitstreams. Based on the multiple sub-streams, a smart truncator is designed that can truncate these sub-bitstreams with optimal rate-distortion (R-D) tradeoff. Benefited from the flexible R-D trade-off, the proposed new scheme could, within a wide bitrate range, outperform those traditional scalable coding schemes, which usually provides a fixed R-D relationship designed at a specified bitrate. To verify the performance, the proposed scheme is further implemented based on a prior art scalable audio codec. Significant quality improvement is observed from the new codec via a series of subjective listening tests. |
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| AbstractList | A new scalable audio coding scheme is introduced in this paper. Its core idea is to create one additional scalability dimension during the encoding process for the purpose of generating a plural of scalable sub-bitstreams. Based on the multiple sub-streams, a smart truncator is designed that can truncate these sub-bitstreams with optimal rate-distortion (R-D) tradeoff. Benefited from the flexible R-D trade-off, the proposed new scheme could, within a wide bitrate range, outperform those traditional scalable coding schemes, which usually provides a fixed R-D relationship designed at a specified bitrate. To verify the performance, the proposed scheme is further implemented based on a prior art scalable audio codec. Significant quality improvement is observed from the new codec via a series of subjective listening tests. |
| Author | Haiyan Shu Rahardja, Susanto Rongshan Yu Haibin Huang Huan Zhou |
| Author_xml | – sequence: 1 surname: Huan Zhou fullname: Huan Zhou organization: Signal Process. Dept., Inst. for InfoComm Res., Singapore, Singapore – sequence: 2 surname: Haiyan Shu fullname: Haiyan Shu organization: Signal Process. Dept., Inst. for InfoComm Res., Singapore, Singapore – sequence: 3 surname: Rongshan Yu fullname: Rongshan Yu organization: Signal Process. Dept., Inst. for InfoComm Res., Singapore, Singapore – sequence: 4 surname: Haibin Huang fullname: Haibin Huang organization: Signal Process. Dept., Inst. for InfoComm Res., Singapore, Singapore – sequence: 5 givenname: Susanto surname: Rahardja fullname: Rahardja, Susanto organization: Signal Process. Dept., Inst. for InfoComm Res., Singapore, Singapore |
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| Snippet | A new scalable audio coding scheme is introduced in this paper. Its core idea is to create one additional scalability dimension during the encoding process for... |
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| SubjectTerms | Audio coding Bandwidth Bit rate coding priority Decoding Scalability scalable coding Transcoding truncator |
| Title | A novel scalable audio coding scheme |
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