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Home > Archive>Volume 12, Issue 5, 2020 >619-624. DOI:10.13878/j.cnki.jnuist.2020.05.013
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A feedback delay network reverberator based on Householder matrix and Butterworth filter bank
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TU112;TN912.3

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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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WU Lifu, TAO Mingming, SHEN Hao, GUO Yecai. A feedback delay network reverberator based on Householder matrix and Butterworth filter bank[J]. Journal of Nanjing University of Information Science & Technology,2020,12(5):619-624

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  • Received:March 22,2019
  • Online: October 29,2020
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