DIAGRAM :: The Coincidence Effect

THE COINCIDENCE EFFECT

Rupert Taylor, Noise, Penguin, 1970

You can see from figure 41 that for a given bending wavelength there is a frequency for the incident sound below which the 'coincidence' effect cannot occur because even if the sound wave travels parallel with the panel it will still have a longer wavelength than the bending wave. This is what is known as the 'critical frequency'.


THE COINCIDENCE EFFECT Rupert Taylor, Noise, Penguin, 1970 You can see from figure 41 that for a given bending wavelength there is a frequency for the incident sound below which the 'coincidence' effect cannot occur because even if the sound wave travels parallel with the panel it will still have a longer wavelength than the bending wave. This is what is known as the 'critical frequency'.