After being placed in a soundproofed room for five minutes, the majority of respondents reported hearing tinnitus type sounds, although none had previously complained of any symptoms (Deafness Research).
Baada ya kuwekwa katika chumba soundproofed kwa dakika tano, wengi wa washiriki taarifa kusikia sauti tinnitus aina, ingawa hakuna hapo awali walilalamikia dalili yoyote (Utafiti uziwi).