Brown noise concentrates its energy in the low end, a deep, rumbling sound like distant surf or an airplane cabin. Free to play online, looping seamlessly.
入眠、集中、ノイズマスキング
Synthesized by Sleep Island as a seamless 3-minute loop.
The web player loops the current preview audio. Choose a timer from 15 minutes to 2 hours, or keep it looping; timed playback fades out gently. The timer sets your listening session, not the original track length.
