Spatial timbre uniformity analysis of loudspeakers in rooms using MFCC

Takashi Minagawa, Kazuhiko Kawahara, Ryo Nakaie

研究成果: Contribution to conferencePaper査読

抄録

Spatial timbre uniformity needs to be considered during public address system design using loudspeakers. In this paper, an analysis based on Mel-frequency cepstrum coefficient (MFCC) was conducted on room impulse responses produced by different loudspeakers including conventional cone loudspeakers and a Distributed Mode Loudspeaker (DML). Histograms of Euclidean distances between MFCC vectors of each impulse response was plotted for each loudspeaker. The tail of the histogram which represents the frequency of larger distances was lighter in the histogram of the DML. The results imply that the DML can avoid extreme spatial timbre dissimilarity. The proposed method introduces concept of timbre uniformity, which could be helpful for designing acoustic spaces.

本文言語英語
出版ステータス出版済み - 2020
イベント149th Audio Engineering Society Convention 2020, AES 2020 - Virtual, Online
継続期間: 10 27 202010 30 2020

会議

会議149th Audio Engineering Society Convention 2020, AES 2020
CityVirtual, Online
Period10/27/2010/30/20

All Science Journal Classification (ASJC) codes

  • モデリングとシミュレーション
  • 音響学および超音波学

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