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| 音声明瞭度× | 部屋のインパルス応答× | |
|---|---|---|
| 分野 | 音響学 | 音響学 |
| 系統 | Process / pipeline | Process / pipeline |
| 提唱年≠ | 1980 | 1965 |
| 提唱者≠ | Herman Steeneken, Tammo Houtgast | Manfred Schroeder |
| 種類≠ | Speech clarity assessment method | Measurement pipeline for room acoustics |
| 原典≠ | Steeneken, H. J., & Houtgast, T. (1980). A physical method for measuring speech-transmission quality. Journal of the Acoustical Society of America, 67(1), 318–326. DOI ↗ | Schroeder, M. R. (1965). New method of measuring reverberation time. Journal of the Acoustical Society of America, 37(6), 409–412. DOI ↗ |
| 別名≠ | intelligibility metrics, STI, Speech Transmission Index, clarity index | RIR, impulse response measurement |
| 関連 | 5 | 5 |
| 概要≠ | Speech intelligibility is a quantitative measure of how well listeners understand spoken content in acoustic environments. Formalized by Steeneken and Houtgast in 1980 with the Speech Transmission Index (STI), intelligibility metrics combine room acoustic parameters (RT60, noise, clarity) to predict listener comprehension. Understanding speech intelligibility is essential for designing classrooms, offices, hearing aids, and public address systems where clear communication is critical. | The Room Impulse Response (RIR) is a measure of how a physical space (room) affects acoustic signals propagating through it. First formalized by Manfred Schroeder in 1965, RIR captures the complete acoustic character of a space by measuring the system response to an impulsive sound source. It is fundamental to characterizing room acoustics, designing audio systems, and modeling spatial audio effects. |
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