2016 IEEE International Workshop on Acoustic Signal Enhancement (IWAENC)最新文献

Under-modelled blind system identification for time delay estimation in reverberant environments 混响环境下时滞估计的欠建模盲系统辨识

2016 IEEE International Workshop on Acoustic Signal Enhancement (IWAENC) Pub Date : 2016-10-24 DOI: 10.1109/IWAENC.2016.7602923

Wei Xue, M. Brookes, P. Naylor

{"title":"Under-modelled blind system identification for time delay estimation in reverberant environments","authors":"Wei Xue, M. Brookes, P. Naylor","doi":"10.1109/IWAENC.2016.7602923","DOIUrl":"https://doi.org/10.1109/IWAENC.2016.7602923","url":null,"abstract":"In multichannel systems, acoustic time delay estimation (TDE) is a challenging problem in reverberant environments. Although blind system identification (BSI) based methods have been proposed which utilize a realistic signal model for the room impulse response (RIR), their TDE performance depends strongly on that of the BSI, which is often inaccurate in practice when the identified responses are under-modelled. In this paper, we propose a new under-modelled BSI based method for TDE in reverberant environments. An under-modelled BSI algorithm is derived, which is based on maximizing the cross-correlation of the cross-filtered signals rather than minimizing the cross-relation error, and also exploits the sparsity of the early part of the RIR. For TDE, this new criterion can be viewed as a generalization of conventional cross-correlation-based TDE methods by considering a more realistic model for the early RIR. Depending on the microphone spacing, only a short early part of each RIR is identified, and the time delays are estimated based on the peak locations in the identified early RIRs. Experiments in different reverberant environments with speech source signals demonstrate the effectiveness of the proposed method.","PeriodicalId":373697,"journal":{"name":"2016 IEEE International Workshop on Acoustic Signal Enhancement (IWAENC)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122703295","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Voice activity detection based on statistical likelihood ratio with adaptive thresholding 基于统计似然比和自适应阈值的语音活动检测

2016 IEEE International Workshop on Acoustic Signal Enhancement (IWAENC) Pub Date : 2016-09-13 DOI: 10.1109/IWAENC.2016.7602911

Xiaofei Li, R. Horaud, Laurent Girin, S. Gannot

引用次数: 15

Application of neural network to source PSD estimation for wiener filter based array sound source enhancement 神经网络在基于维纳滤波的阵列声源增强声源PSD估计中的应用

2016 IEEE International Workshop on Acoustic Signal Enhancement (IWAENC) Pub Date : 2016-09-13 DOI: 10.1109/IWAENC.2016.7602949

Tomoko Kawase, K. Niwa, Kazunori Kobayashi, Yusuke Hioka

引用次数: 11

Extraction of exterior field from a mixed sound field for 2D height-invariant sound propagation 二维高度不变声传播的混合声场外场提取

2016 IEEE International Workshop on Acoustic Signal Enhancement (IWAENC) Pub Date : 2016-09-01 DOI: 10.1109/IWAENC.2016.7602967

Abdullah Fahim, P. Samarasinghe, T. Abhayapala

{"title":"Extraction of exterior field from a mixed sound field for 2D height-invariant sound propagation","authors":"Abdullah Fahim, P. Samarasinghe, T. Abhayapala","doi":"10.1109/IWAENC.2016.7602967","DOIUrl":"https://doi.org/10.1109/IWAENC.2016.7602967","url":null,"abstract":"Any sound field caused by one or more sound sources takes the form of an interior, exterior or a mixed sound field based on the source locations. The recording and reproduction of interior or exterior sound fields in terms of harmonic decomposition has been extensively studied in the literature, however the challenging task of separating them in a mixed field remains largely unexplored. But in nature, the interior and exterior sound fields often co-exist, hence their isolation can be very useful in many acoustic processes. In this paper, we discuss a method to extract the exterior field from a mixed sound field for 2D height-invariant sound propagation. Such an extraction method can be employed to record a sound field in a noisy or interfered room or to perform dereverberation in a reverberant room where the sound fields due to the source signal and its reflections superimpose each other. We demonstrate two practical uses of the proposed method in the forms of (i) an exterior sound field recording in a mixed wave field and (ii) speech dereverberation in a simulated reverberant room.","PeriodicalId":373697,"journal":{"name":"2016 IEEE International Workshop on Acoustic Signal Enhancement (IWAENC)","volume":"151 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121214553","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Improved nonnegative adaptive filtering algorithms 改进的非负自适应滤波算法

2016 IEEE International Workshop on Acoustic Signal Enhancement (IWAENC) Pub Date : 2016-09-01 DOI: 10.1109/IWAENC.2016.7602966

K. Zhao, J. Ni, Xiaoping Chen

引用次数: 0

Multi-speaker DOA estimation in reverberation conditions using expectation-maximization 利用期望最大化估计混响条件下的多扬声器DOA

2016 IEEE International Workshop on Acoustic Signal Enhancement (IWAENC) Pub Date : 2016-09-01 DOI: 10.1109/IWAENC.2016.7602897

Ofer Schwartz, Yuval Dorfan, Emanuël Habets, S. Gannot

引用次数: 24

Approximate MVDR and MMSE beamformers exploiting scale-invariant reconstruction of signals on microphones 近似MVDR和MMSE波束形成器利用麦克风上的信号的尺度不变重建

2016 IEEE International Workshop on Acoustic Signal Enhancement (IWAENC) Pub Date : 2016-09-01 DOI: 10.1109/IWAENC.2016.7602928

Zbyněk Koldovský, F. Nesta

引用次数: 3

A modified a priori SER for acoustic echo suppression using wiener filter 基于维纳滤波器的声学回波抑制改进先验SER

2016 IEEE International Workshop on Acoustic Signal Enhancement (IWAENC) Pub Date : 2016-09-01 DOI: 10.1109/IWAENC.2016.7602950

Ying Tong, Yaping Gu

引用次数: 1

Affine projection algorithm for acoustic feedback cancellation using prediction error method in hearing aids 基于预测误差法的助听器声反馈抵消仿射投影算法

2016 IEEE International Workshop on Acoustic Signal Enhancement (IWAENC) Pub Date : 2016-09-01 DOI: 10.1109/IWAENC.2016.7602885

L. Tran, H. H. Dam, S. Nordholm

引用次数: 15

An iterative method for equalization of multichannel acoustic systems robust to system identification errors 一种抗辨识误差的多通道声学系统迭代均衡方法

2016 IEEE International Workshop on Acoustic Signal Enhancement (IWAENC) Pub Date : 2016-09-01 DOI: 10.1109/IWAENC.2016.7602899

Wancheng Zhang, P. Naylor

引用次数: 1