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| Sprachverständlichkeit× | RT60 Nachhallzeit× | |
|---|---|---|
| Fachgebiet | Akustik | Akustik |
| Familie | Process / pipeline | Process / pipeline |
| Entstehungsjahr≠ | 1980 | 1900 |
| Urheber≠ | Herman Steeneken, Tammo Houtgast | Wallace Clement Sabine |
| Typ≠ | Speech clarity assessment method | Room acoustic descriptor |
| Wegweisende Quelle≠ | 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 ↗ | Sabine, W. C. (1900). Collected Papers on Acoustics. Dover Publications. link ↗ |
| Aliasnamen≠ | intelligibility metrics, STI, Speech Transmission Index, clarity index | RT60, reverberation time, decay time |
| Verwandt | 5 | 5 |
| Zusammenfassung≠ | 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. | RT60 (reverberation time) is the duration required for sound energy in a room to decay by 60 decibels after the source stops. Pioneered by Wallace Clement Sabine in 1900, RT60 is the most widely used single-number descriptor of room acoustic properties. It reflects how much sound is absorbed versus reflected by room surfaces and directly affects speech intelligibility, music clarity, and acoustic comfort. |
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