{"title":"基于嵌入式零树小波的可扩展数字音频编码器","authors":"Jianxin Yan, Z. Dong, W. Dou","doi":"10.1109/ICCT.2003.1209891","DOIUrl":null,"url":null,"abstract":"In this paper, a scalable audio scheme is presented, which is mainly based on an embedded zerotree wavelet (EZW) coding technology. Firstly, 29 critical subbands are obtained by splitting audio signals with a digital wavelet package transform (DPWT). Then a zerotree coding is acted on these subbands. Lastly, an entropy coding is applied to remove redundancy and a specific frame structure is formed. The resulting encoder can support a scalable bit stream from 16 kbps to 64 kbps with a 4 kbps step size for a single audio channel and the graceful degeneration of subjective audio quality can also be provided.","PeriodicalId":237858,"journal":{"name":"International Conference on Communication Technology Proceedings, 2003. ICCT 2003.","volume":"10 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2003-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"A scalable digital audio encoder based on embedded zerotree wavelet\",\"authors\":\"Jianxin Yan, Z. Dong, W. Dou\",\"doi\":\"10.1109/ICCT.2003.1209891\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In this paper, a scalable audio scheme is presented, which is mainly based on an embedded zerotree wavelet (EZW) coding technology. Firstly, 29 critical subbands are obtained by splitting audio signals with a digital wavelet package transform (DPWT). Then a zerotree coding is acted on these subbands. Lastly, an entropy coding is applied to remove redundancy and a specific frame structure is formed. The resulting encoder can support a scalable bit stream from 16 kbps to 64 kbps with a 4 kbps step size for a single audio channel and the graceful degeneration of subjective audio quality can also be provided.\",\"PeriodicalId\":237858,\"journal\":{\"name\":\"International Conference on Communication Technology Proceedings, 2003. ICCT 2003.\",\"volume\":\"10 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2003-04-09\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"International Conference on Communication Technology Proceedings, 2003. ICCT 2003.\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ICCT.2003.1209891\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Conference on Communication Technology Proceedings, 2003. ICCT 2003.","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICCT.2003.1209891","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A scalable digital audio encoder based on embedded zerotree wavelet
In this paper, a scalable audio scheme is presented, which is mainly based on an embedded zerotree wavelet (EZW) coding technology. Firstly, 29 critical subbands are obtained by splitting audio signals with a digital wavelet package transform (DPWT). Then a zerotree coding is acted on these subbands. Lastly, an entropy coding is applied to remove redundancy and a specific frame structure is formed. The resulting encoder can support a scalable bit stream from 16 kbps to 64 kbps with a 4 kbps step size for a single audio channel and the graceful degeneration of subjective audio quality can also be provided.
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