kummajaiseksi
Kummajaiseksi is a Finnish term often translated as "echo" or "reverberation." It refers to the phenomenon where a sound is reflected off a surface and heard again by the listener, typically with a delay and diminished intensity. This occurs when sound waves encounter a hard, large surface, such as a wall, cliff face, or building, and bounce back. The time delay between the original sound and the reflected sound, as well as the nature of the reflecting surface, determine the perceived quality of the kummajaiseksi.
In natural environments, kummajaiseksi can be observed in places like canyons, caves, and large open fields