Applications for the Android operating system that generate a specific type of auditory signal are available. This signal, characterized by a frequency spectrum where the power decreases with increasing frequency, resembles sounds found in nature. A prominent example is an application designed to produce this sound via an Android-based mobile device.
The utilization of such applications can be beneficial for promoting relaxation, masking distracting ambient sounds, and potentially improving sleep quality. The consistent and non-intrusive nature of the signal makes it suitable for various environments. Historically, similar auditory techniques have been employed in sound therapy and noise masking strategies.