Lärm

Test your voice and compare it with the ten most recent recorded sounds. You can also display the sound map of Brno, play a list of various sounds and their corresponding intensity of noise, or music of different genres. Sound is mechanical oscillation caused by densification or dilution of molecules in the environment. Sound can be categorised as tones and noises. While tones are periodic sounds with a steady frequency, noises are the opposite. We find tones pleasant but not noise, which can even have negative impact on our health.