{"title":"分布式麦克风会议环境下的盲源分离,改进电话会议","authors":"J. Dmochowski, Zicheng Liu, P. Chou","doi":"10.1109/ICASSP.2008.4517553","DOIUrl":null,"url":null,"abstract":"From an audio perspective, the present state of teleconferencing technology leaves something to be desired; speaker overlap is one of the causes of this inadequate performance. To that end, this paper presents a frequency-domain implementation of convolutive BSS specifically designed for the nature of the teleconferencing environment. In addition to presenting a novel depermutation scheme, this paper presents a least-squares post-processing scheme, which exploits segments during which only a subset of all speakers are active. Experiments with simulated and real data demonstrate the ability of the proposed methods to provide SIRs at or near that of the adaptive noise cancellation (ANC) solution which is obtained under idealistic assumptions that the ANC filters are adapted with one source being on at a time.","PeriodicalId":333742,"journal":{"name":"2008 IEEE International Conference on Acoustics, Speech and Signal Processing","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2008-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"22","resultStr":"{\"title\":\"Blind source separation in a distributed microphone meeting environment for improved teleconferencing\",\"authors\":\"J. Dmochowski, Zicheng Liu, P. Chou\",\"doi\":\"10.1109/ICASSP.2008.4517553\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"From an audio perspective, the present state of teleconferencing technology leaves something to be desired; speaker overlap is one of the causes of this inadequate performance. To that end, this paper presents a frequency-domain implementation of convolutive BSS specifically designed for the nature of the teleconferencing environment. In addition to presenting a novel depermutation scheme, this paper presents a least-squares post-processing scheme, which exploits segments during which only a subset of all speakers are active. Experiments with simulated and real data demonstrate the ability of the proposed methods to provide SIRs at or near that of the adaptive noise cancellation (ANC) solution which is obtained under idealistic assumptions that the ANC filters are adapted with one source being on at a time.\",\"PeriodicalId\":333742,\"journal\":{\"name\":\"2008 IEEE International Conference on Acoustics, Speech and Signal Processing\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2008-05-12\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"22\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2008 IEEE International Conference on Acoustics, Speech and Signal Processing\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ICASSP.2008.4517553\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2008 IEEE International Conference on Acoustics, Speech and Signal Processing","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICASSP.2008.4517553","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Blind source separation in a distributed microphone meeting environment for improved teleconferencing
From an audio perspective, the present state of teleconferencing technology leaves something to be desired; speaker overlap is one of the causes of this inadequate performance. To that end, this paper presents a frequency-domain implementation of convolutive BSS specifically designed for the nature of the teleconferencing environment. In addition to presenting a novel depermutation scheme, this paper presents a least-squares post-processing scheme, which exploits segments during which only a subset of all speakers are active. Experiments with simulated and real data demonstrate the ability of the proposed methods to provide SIRs at or near that of the adaptive noise cancellation (ANC) solution which is obtained under idealistic assumptions that the ANC filters are adapted with one source being on at a time.