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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Published in:Proceedings of the ... IEEE International Conference on Acoustics, Speech and Signal Processing (1998) pp. 533 - 537
Main Authors: Huan Zhou, Haiyan Shu, Rongshan Yu, Haibin Huang, Rahardja, Susanto
Format: Conference Proceeding
Language:English
Published: IEEE 01.05.2013
Subjects:
Audio coding
Bandwidth
Bit rate
coding priority
Decoding
Scalability
scalable coding
Transcoding
truncator
ISSN:1520-6149
Online Access:Get full text
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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.
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
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  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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StartPage 533
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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