![]() The intensity of sound pressure and the frequency in hertz (Hz) were measured. To obtain the sound parameters of intensity and frequency, the toys were set to produce sounds at a distance of 10 and 50cm from the researcher's ear. The measurement of each product was carried out by an acoustic engineer in an acoustically isolated booth, by a decibel meter. Electronic, mechanical, and musical toys were analyzed. ![]() Cross-sectional study of sound toys available at popular retail stores of the so-called informal sector. To verify the levels of sound pressure emitted by non-certified children's toys. Sleifer, Pricila Gonçalves, Maiara Santos Tomasi, Marinês Gomes, Erissandra ![]() Analysis of sound pressure levels emitted by children's toys. ![]()
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