Stage Sound System for Identifying Speakers by Using Auxiliary Sound Sources

DOI
  • TANAKA Yuto
    Graduate School of Informatics and Engineering, The University of Electro-Communications
  • TAKAHASHI Kota
    Graduate School of Informatics and Engineering, The University of Electro-Communications

Bibliographic Information

Other Title
  • 補助音源の併用により発声者を識別させる劇場用音響システム

Description

<p>In large theaters, the sound of the performers does not reach the audience in the back seats. Therefore, amplification is performed using microphones worn by each performer and main speakers installed in front of the stage. At this time, regardless of the performer, the sound of the speaker is positioned at a position determined by the listening position of each audience. Therefore, in situations where multiple people are on stage, it may be difficult to identify the speaker. In this study, we aim to develop a system that can instantly identify the speaker without adversely affecting the audience’s listening by processing the output from the auxiliary sound source device in the time-frequency plane without processing the output sound from the main speaker. As a result of the experiment, it was found that the loudness of the auxiliary sound source can be reduced by about 13 dB by limiting both the frequency direction and the time direction. In this paper, we also describe the implementation of this method using an FPGA-based real-time audio signal processing system.</p>

Journal

Details 詳細情報について

  • CRID
    1390585017622005632
  • DOI
    10.60274/asjsc.sc-2025-4
  • ISSN
    27582744
  • Text Lang
    ja
  • Data Source
    • JaLC
  • Abstract License Flag
    Allowed

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