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| Skale Bark i Mel× | Inteligibilność mowy× | |
|---|---|---|
| Dziedzina | Akustyka | Akustyka |
| Rodzina | Process / pipeline | Process / pipeline |
| Rok powstania≠ | 1937 | 1980 |
| Twórca≠ | Eberhard Zwicker, Stanley Smith Stevens | Herman Steeneken, Tammo Houtgast |
| Typ≠ | Perceptual frequency mapping | Speech clarity assessment method |
| Źródło pierwotne≠ | Zwicker, E. (1961). Subdivision of the audible frequency range into critical bands. Journal of the Acoustical Society of America, 33(2), 248–248. link ↗ | 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 ↗ |
| Inne nazwy | bark scale, mel scale, critical bandwidth, perceptual frequency | intelligibility metrics, STI, Speech Transmission Index, clarity index |
| Pokrewne | 5 | 5 |
| Podsumowanie≠ | Bark and Mel scales are perceptual frequency scales that map physical frequency (Hz) to perceived pitch and auditory perception. Formalized by Zwicker (Bark, 1961) and Stevens (Mel, 1937), these non-linear scales reflect how the human ear processes sound. Bark scale divides hearing into 24 critical bands; Mel scale models pitch perception. Both are essential for audio feature extraction, speech processing, and designing audio systems that align with human hearing. | 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. |
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