| 基于Householder矩阵和Butterworth滤波器组的反馈延迟网络人工混响 |
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| 引用本文： | 吴礼福,陶明明,申浩,郭业才.基于Householder矩阵和Butterworth滤波器组的反馈延迟网络人工混响[J].南京气象学院学报,2020,12(5):619-624. |
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| 作者姓名： | 吴礼福 陶明明 申浩 郭业才 |
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| 作者单位： | 南京信息工程大学 电子与信息工程学院, 南京, 210044;南京信息工程大学 江苏省大气环境与装备技术协同创新中心, 南京, 210044,南京信息工程大学 电子与信息工程学院, 南京, 210044,南京信息工程大学 电子与信息工程学院, 南京, 210044,南京信息工程大学 电子与信息工程学院, 南京, 210044 |
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| 基金项目： | 国家自然科学基金（12074192） |
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| 摘 要： | 针对现有人工混响方法中反馈延迟网络方法存在延迟线的个数选择受限和无法设定子带混响时间的不足，本文设计了一种基于Householder反馈矩阵和Butterworth滤波器组的反馈延迟网络人工混响器.Householder反馈矩阵有助于最大化回声密度，延迟线个数的选择相对自由，Butterworth滤波器组便于设定子带混响时间.仿真实验中分别利用语谱图、语音质量感知评价和主观评价验证了本文方法的有效性.
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| 关 键 词： | 人工混响 反馈延迟网络 反馈矩阵 滤波器组 |
| 收稿时间： | 2019/3/22 0:00:00 |
A feedback delay network reverberator based on Householder matrix and Butterworth filter bank |
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| WU Lifu,TAO Mingming,SHEN Hao and GUO Yecai.A feedback delay network reverberator based on Householder matrix and Butterworth filter bank[J].Journal of Nanjing Institute of Meteorology,2020,12(5):619-624. |
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| Authors: | WU Lifu TAO Mingming SHEN Hao and GUO Yecai |
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| Institution: | School of Electronic&Information Engineering, Nanjing University of Information Science&Technology, Nanjing 210044;Jiangsu Collaborative Innovation Center on Atmospheric Environment and Equipment Technology, Nanjing University of Information Science&Technology, Nanjing 210044,School of Electronic&Information Engineering, Nanjing University of Information Science&Technology, Nanjing 210044,School of Electronic&Information Engineering, Nanjing University of Information Science&Technology, Nanjing 210044 and School of Electronic&Information Engineering, Nanjing University of Information Science&Technology, Nanjing 210044 |
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| Abstract: | In order to improve the limitation of the number of delay lines in the existing feedback delay network method and the inability to determine the sub-band reverberation time,this paper introduces a feedback delay network for artificial reverberationbased on the Householder feedback matrix and Butterworth filter bank.The Householder feedback matrix can maximize the echo density,the choice of delay lines number is relatively free.The Butterworth filter bank is convenient for specifying the sub-band reverberation time.In the simulation experiment,the validity of the proposed method wasverified by spectrogram,perceptual evaluation of speech quality,and subjective evaluation. |
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| Keywords: | artificial reverberation feedback delay network feedback matrix filterbank |
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