This white noise machine has a timer you can set for 15, 30 or 60 minutes and plays six calming nature sounds and sleep sounds. Choose from the soothing sound options of white noise, brook ...

Many sound machines incorporate several noise "colors" in the form of nature sounds, such as wind, waves, rain, or streams. Best overall While there are plenty of "smart" sound machines on the ...

We can use technology to create measures of biodiversity based on sound. Basically, we filter out all the noise made by humans, then what’s left – the noise made by nature – is a measure of ...

The Elesories White Sound Machine comes with five white noise, fan sounds, seven nature sounds and smooth sounds. It features a built-in 52mm Hi-Fi speaker, which makes the sounds more comfortable ...