Sound & Acoustics

Calculate how Doppler shift changes the frequency of sound waves.

Compute a Doppler shift:

Compute the subjective loudness and perceptual acoustical scale values of a sound.

Compute perceived loudness:

Compute source loudness:

Convert frequencies to different perceptual acoustical scales:

Explore acoustic sound barriers and absorption properties of water and air.

Find the absorption coefficient of seawater:

Determine the effect of distance on sound pressure levels in moist air:

Determine the resonant frequencies of Helmholtz resonators based on their physical dimensions.

Determine resonant frequency of a cavity:

Calculate the hearing threshold for a sound based on ambient conditions.

Find the maximum distance for hearing a sound:

Calculate how soon hearing is lost due to exposure to noise.

Compute exposure time to avoid hearing loss: