New Recording System for the Larynx Developed—Enables Simultaneous Image/Sound Recording and Analysis Results Display—

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  • Kano Shigeru
    Kano ENT Clinic
  • Kawasaki Hirotoki
    Department of Otorhinolaryngology, Head and Neck Surgery, Kanazawa Medical University
  • Tsuji Hiroyuki
    Department of Otorhinolaryngology, Head and Neck Surgery, Kanazawa Medical University
  • Miwa Takaki
    Department of Otorhinolaryngology, Head and Neck Surgery, Kanazawa Medical University

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  • 映像・音声と同期した解析結果が表示される喉頭動画像記録
  • エイゾウ ・ オンセイ ト ドウキ シタ カイセキ ケッカ ガ ヒョウジ サレル コウトウ ドウガゾウ キロク

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Abstract

<p>Although methods for recording laryngeal images have changed from analog (videotape) to digital (hard disk), nothing has changed in terms of the recording content, which continues to consist of images and sound. Voice analysis is usually carried out separately and filed separately from the laryngeal recording, and for this reason additional information on the relation between the analyzed data and a section of the recorded voice is needed. We developed a new technique to analyze the voice and input the results in a video file simultaneously. Those results include musical scale, fundamental frequency and its standard deviation, PPQ (period perturbation quotient), APQ (amplitude perturbation quotient), NNE (normalized noise energy) and HNR (harmonics-to-noise ratio). As analyzed data is also saved in text format, follow-up usage is facilitated.</p>

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