These questions are related strictly to past history of noise
exposure: sources, daily duration and overall length of exposure. It
is not necessary to fill out the entire questionnaire but the most
important part is age and gender, since the ISO standard to which
we will be comparing the results needs those data. Remember that
the results of the questionnaire will remain anonymous. Thank you
for participating e please put your completed questionnaire in the
ballot box in the orchestra lounge.