Effect of Noise on the Deaf For many years one of the mysteries of medicine was the fact ■‘hat some deafened people seemed to hear better in railroad stations, subway trains, and other noisy places than people with normal hearing. The reason is—these people are deafer to low tones than to high tones and since noise is made up principally of low tones the deaf person isn’t affected by it. On the other hand, the normal hearing person raises his voice to overcome the noise, and the higher tones of his speech, delivered with more than usual loudness,, penetrate to the deaf person’s consciousness.
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Press, Volume LXXIV, Issue 22319, 5 February 1938, Page 19
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104Page 19 Advertisements Column 1 Press, Volume LXXIV, Issue 22319, 5 February 1938, Page 19
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