Abstract :
H. A. Frederick: In reading this paper one cannot but wish that some definite standard or method of rating might have been employed, so that the results of this investigation of many types of loud speakers might be placed quantitatively in definite positions on some scale of merit. Since the authors, as pointed out in the paper, have not as yet been able to obtain satisfactory quantitative measurements with their best designs, the readers are not in a position to judge the accomplishment. While these measurements are not simple and are liable to be misleading, unless very carefully made, still the same comment applies to qualitative judgments by the ear alone.
