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| Mel-Frequency Cepstral Coefficients (MFCC) (Melsageduse tsesktraalkoeitsidendid)× | Peaga seotud ülekandefunktsioon× | |
|---|---|---|
| Valdkond | Rakendusfüüsika | Rakendusfüüsika |
| Perekond | Process / pipeline | Process / pipeline |
| Tekkeaasta≠ | 1980 | 1989 |
| Looja≠ | Steven Davis, Paul Mermelstein | Fredrik Wightman, Doris Kistler |
| Tüüp≠ | Audio feature extraction algorithm | Frequency-dependent spatial filtering function |
| Algallikas≠ | Davis, S., & Mermelstein, P. (1980). Comparison of parametric representations for monosyllabic word recognition in continuously spoken sentences. IEEE Transactions on Acoustics, Speech, and Signal Processing, 28(4), 357-366. DOI ↗ | Wightman, F. L., & Kistler, D. J. (1989). Headphone simulation of free-field listening. I: Stimulus synthesis. The Journal of the Acoustical Society of America, 85(2), 858-867. DOI ↗ |
| Rööpnimetused | mel-cepstral features, MFCC features, mel-frequency features | HRTF, spatial hearing, binaural filter |
| Seotud | 3 | 3 |
| Kokkuvõte≠ | Mel-Frequency Cepstral Coefficients (MFCCs) are a compact representation of audio features that mimic human auditory perception. Introduced by Davis and Mermelstein in 1980, MFCCs are the de facto feature extraction method for speech recognition and environmental sound analysis. They compress the frequency information of audio signals into a small set of coefficients that capture phonetic content while discarding irrelevant details. | The Head-Related Transfer Function (HRTF) describes how the human head, ears, and torso filter sound from different directions. HRTFs capture the acoustical changes that occur as sound travels around the head to reach each ear, enabling the perception of sound location in 3D space. Measured or modeled HRTFs are essential for creating convincing 3D audio through headphones in virtual reality, spatial games, and immersive audio applications. |
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