Acoustics is the study of mechanical waves in gases, liquids and solids, extending to all forms of sound. Wolfram|Alpha includes many computations and equations for determining how sound is affected by motion, humidity and distance as well as the listener's perceived experience.
Calculate how Doppler shift changes the frequency of sound waves.
Explore acoustic sound barriers and absorption properties of water and air.
Calculate how soon hearing is lost due to exposure to noise.
Compute the subjective loudness and perceptual acoustical scale values of a sound.
Determine the resonant frequencies of Helmholtz resonators based on their physical dimensions.
Play and visualize sound waves constructed from different waveforms.
Calculate the hearing threshold for a sound based on ambient conditions.