{"title":"Alias-free, multiresolution sinusoidal modeling for polyphonic, wideband audio","authors":"S. Levine, Tony S. Verma, Julius O. Smith","doi":"10.1109/ASPAA.1997.625602","DOIUrl":null,"url":null,"abstract":"We describe an improved method of generating more accurate sinusoidal parameters (amplitude, frequency, phase) from a wideband polyphonic audio source in a multiresolution, non-aliased fashion. This significantly improves upon previous work of sinusoidal modeling that assumes a single-pitched monophonic source, such as speech or an individual musical instrument. In addition to a more general analysis, we can now perform high-quality transformations such as time-stretching and pitch-shifting on polyphonic audio with ease.","PeriodicalId":347087,"journal":{"name":"Proceedings of 1997 Workshop on Applications of Signal Processing to Audio and Acoustics","volume":"1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1997-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"33","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of 1997 Workshop on Applications of Signal Processing to Audio and Acoustics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ASPAA.1997.625602","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 33
Abstract
We describe an improved method of generating more accurate sinusoidal parameters (amplitude, frequency, phase) from a wideband polyphonic audio source in a multiresolution, non-aliased fashion. This significantly improves upon previous work of sinusoidal modeling that assumes a single-pitched monophonic source, such as speech or an individual musical instrument. In addition to a more general analysis, we can now perform high-quality transformations such as time-stretching and pitch-shifting on polyphonic audio with ease.
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