Frog sounds at night
A chorus of frogs at night in rural Brazil, with crickets close by.
A 2-minute recording played in random overlapping segments, the way the app plays it, so you won't hear a loop. Start with your volume low. Keep this tab open.
About this sound
A chorus of frogs at night in the countryside of Serrinha do Alambari, Brazil, with crickets chirping close to the microphone.
We used about 8 minutes of the original and removed a steady hum at 120 Hz. The app plays random stretches of about half a minute joined with 4-second crossfades and a gentle drift in volume, so the calls never fall into a loop. The player on this page uses a 2-minute excerpt.
How people use it
Frogs and crickets make a dense, pulsing texture that many people associate with warm nights. It covers small household sounds but not loud traffic.
Keep it low so individual calls don't stand out. It pairs naturally with crickets, and a little rain underneath makes it feel like a summer night after a storm.
Turn the Tone control down to soften the highest chirps if they feel sharp.
Questions
Where were the frogs recorded?
At night in rural Brazil, in the Serrinha do Alambari area, with crickets close by.
Are frog sounds good for sleep?
Some people find them soothing, others find the calls too busy. Nobody has studied it; try it at a low volume with a timer.
Does it loop?
Not audibly. The app plays random parts of about 8 minutes of recording, joined with 4-second crossfades, and each part comes back only after most of the others.
Get frogs on your phone
Nightwool is coming to iPhone and Android. One e-mail when it launches, then we delete the list.