| 摘要 |
A method to obtain a desired level of diffusivity of acoustic output from an acoustic device comprises measuring a reference response of the device and at least one other response, and calculating a correlation between these responses. At least one parameter of the device is varied and the responses remeasured. The parameter giving a correlation closest to a predetermined optimum correlation value is selected in order to obtain the desired diffusivity. Also disclosed is a method for measuring the diffusivity of the acoustic output of an acoustic device, where the correlation between device responses at two positions is correlated, providing a measure of diffusivity. The methods are applied particularly to the design of bending-wave panel loudspeakers. |
