Caxirola sound creation tool replaces the vuvuzela
Scientists are checking the audio creation tool to promote the 2014 World Cup football matches in Brazil, to see if it is too uncomfortable to affect human ears.
Scientists are checking the audio creation tool to promote the 2014 World Cup football matches in Brazil, to see if it is too uncomfortable to affect human ears.
Previously, researchers at Santa Maria University (USA) found that the plastic trumpet called vuvuzela created a very annoying noise not only for audiences at the 2010 World Cup pitch, but also "torture". TV viewers.
Caxirola sound generator.(Photo: veja.abril.com.br)
The Brazilian Games organization introduced caxirola , a traditional audio emitting tool , considered the official tool for the 2014 World Cup. This product was invented by musician Carlinhos Brown, designed sounds more pleasant than vuvuzela.
According to UPI news agency, the researchers asked 22 volunteers to test and find caxirola sounds do not harm the listener's ears.
The sound pressure level is compared to a normal conversation. Caxirola is said to be 45 decibels lower than the sound created by vuvuzela, which means that it needs 30,000 caxirola to create a 1 vuvuzela sound.
However, other harmful " caxirola" may be unexpected by researchers. For example, recently, extreme fans in a football game in Brazil, disagreeing with the referees' decision, simultaneously threw caxirola into the grass.
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