In a recent paper [J. Acoust. Soc. Amer. 46, 831–834 (1969)], A. C. Raes suggests the producing of diffuse sound fields through the use of two speakers excited alternately. The present paper describes some experiments devoted to research work on the grade of sound diffusion obtained by using this method. To this end, work was carried out in six chambers having different acoustic characteristics. In each case, the chamber was excited by white‐noise signals produced by two speakers, first simultaneously and then alternately, in accordance with the suggested method. The sound level was measured at different points in each chamber, and the standard deviation was calculated. The results seem to show that the suggested method does not better diffusion substantially.