{"title":"低速率、高质量音频变换编码器的时间与频率分辨率","authors":"M. Bosi, G. Davidson, L. Fielder","doi":"10.1109/ASPAA.1991.634112","DOIUrl":null,"url":null,"abstract":"An adaptive block size transform coder for high quality music has been developed. The adaptability of the input size of the transform combined with the properties of the transform as developed in the Dolby AC-2 technology allows one to exploit both maximum time and frequency resolution while keeping the bit rate as low as 128 kb/s per channel. The low complexity of the system permits a real-time implementation of encoder or decoder using one general purpose, programmable DSP chip per channel pair.","PeriodicalId":146017,"journal":{"name":"Final Program and Paper Summaries 1991 IEEE ASSP Workshop on Applications of Signal Processing to Audio and Acoustics","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":"{\"title\":\"Time versus Frequency Resolution in a Low-Rate, High Quality Audio Transform Coder\",\"authors\":\"M. Bosi, G. Davidson, L. Fielder\",\"doi\":\"10.1109/ASPAA.1991.634112\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"An adaptive block size transform coder for high quality music has been developed. The adaptability of the input size of the transform combined with the properties of the transform as developed in the Dolby AC-2 technology allows one to exploit both maximum time and frequency resolution while keeping the bit rate as low as 128 kb/s per channel. The low complexity of the system permits a real-time implementation of encoder or decoder using one general purpose, programmable DSP chip per channel pair.\",\"PeriodicalId\":146017,\"journal\":{\"name\":\"Final Program and Paper Summaries 1991 IEEE ASSP Workshop on Applications of Signal Processing to Audio and Acoustics\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1900-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Final Program and Paper Summaries 1991 IEEE ASSP Workshop on Applications of Signal Processing to Audio and Acoustics\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ASPAA.1991.634112\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Final Program and Paper Summaries 1991 IEEE ASSP Workshop on Applications of Signal Processing to Audio and Acoustics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ASPAA.1991.634112","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Time versus Frequency Resolution in a Low-Rate, High Quality Audio Transform Coder
An adaptive block size transform coder for high quality music has been developed. The adaptability of the input size of the transform combined with the properties of the transform as developed in the Dolby AC-2 technology allows one to exploit both maximum time and frequency resolution while keeping the bit rate as low as 128 kb/s per channel. The low complexity of the system permits a real-time implementation of encoder or decoder using one general purpose, programmable DSP chip per channel pair.
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