资讯
11 天
CNET on MSNBrown vs White Noise: Which Sound Will Put You to Sleep?I researched the two types of noises to find out which one is better to play on your sound machine while sleeping.
Brown noise is a deep sound with more of a bass tone and less of a hiss than white noise. Brown noise plays low-frequency ...
But this week, a new study suggests that some white noise machines designed for babies can produce harmful amounts of sound. Before you despair about trashing your baby’s hearing, please keep in ...
With many American adults increasingly using white noise machines to help them sleep at night, it’s no surprise that children may also rely on them. However, a new study in the scientific ...
一些您可能无法访问的结果已被隐去。
显示无法访问的结果