From the Journal of the Acoustical Society of America, 1960:
R.F. Legget and T.D. Northwood of the National Research Council of Canada report that attending conferences is "one of the occupational hazards of scientific and engineering work in North America." Meetings like these tend to be very loud, presenting serious dangers to ears. Often, discussions cannot be fitted into business sessions, which forces delegates to "attend social functions where, in principle at least, more extensive discussions can take place." More chatter, more hurty ears.
Concerned about the volume of these conferences and associated sessions, Legget and Northwood sought to "determine whether the noise might constitute a health hazard for diplomats, bartenders, and other habitual party-goers."
In order to get an accurate measurements of the peak noise levels, the researchers are proposing to hold "a series of carefully planned experimental parties."