قارن الطرق
راجع الطرق التي اخترتها جنبًا إلى جنب؛ الصفوف المختلفة مميَّزة.
| Impedance Tube× | الإخفاء السمعي النفسي× | |
|---|---|---|
| المجال | علم الصوتيات | علم الصوتيات |
| العائلة | Process / pipeline | Process / pipeline |
| سنة النشأة≠ | 1866 | 1961 |
| صاحب الطريقة≠ | August Kundt | Eberhard Zwicker |
| النوع≠ | Acoustic absorption measurement | Perceptual model for audio systems |
| المصدر التأسيسي≠ | ASTM E1050-19 (2019). Standard Test Method for Impedance and Absorption of Acoustical Materials Using a Tube, Two Microphone and a Digital Frequency Analysis System. American Society for Testing and Materials. link ↗ | Zwicker, E., & Scharf, B. (1965). Psychoacoustics: Facts and Models. Springer-Verlag. ISBN: 978-3540631644 |
| الأسماء البديلة | kundt tube, resonance tube, acoustic absorption, sound absorption coefficient | masking, temporal masking, frequency masking, auditory masking |
| ذات صلة | 5 | 5 |
| الملخص≠ | An impedance tube (or Kundt tube) is a laboratory apparatus for measuring the acoustic absorption coefficient and surface impedance of materials. Originally developed by August Kundt in 1866, the technique has been standardized by ASTM and ISO for characterizing noise-control and acoustic-treatment materials. The impedance tube method is simple, portable, and cost-effective, making it the industry standard for pre-design acoustic material selection and quality control. | Psychoacoustic masking describes how the human auditory system suppresses the perception of weak sounds in the presence of stronger sounds. Formalized by Eberhard Zwicker in the 1960s, masking is a fundamental phenomenon in hearing and the basis for perceptual audio coding (MP3, AAC, OPUS). Masking occurs both in frequency (spectral masking) and time (temporal masking), and understanding these effects enables efficient audio compression and realistic sound design. |
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