![]() Reports suggest that noise levels inside the womb can be as loud as 90dB (about as loud as a lawnmower), however, in 2014, a study from the American Association of Pediatrics (AAP) tested 14 white noise machines and found that some produced volumes in excess of 85dB, concluding that this could be damaging if left for several hours at close proximity to a baby's ear. Much of the discussion around the safety of white noise machines centres on the volume of the sound. Heartbeats, wind and rain are considered pink noises – although are also lumped within the white noise category. It’s more intense than white noise and occurs at lower frequencies, which creates a deep sound. Pink noise consists of all frequencies we can hear, but the energy isn’t equally distributed across them. They can also be called pink noise machines or advertised as both white and pink noise machines. ![]() Placed in or near your baby’s crib, these machines aim to make your child feel comfortable and safe. White noise machines emit soothing sounds designed to mimic the noises your little one heard in the womb, from a heartbeat to a droning whoosh. How to choose the best white noise machine for your baby What is a white noise machine?
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