Wolfram|Alpha Engineering

Sound & Acoustics

Doppler Shift

compute a Doppler shift
Doppler shift 300Hz, 75mph

Subjective Acoustics

compute perceived loudness
perceived loudness 110 Hz, 60 dB
compute source loudness
source loudness 11 kHz, 25 phon

Sound Absorption

find the absorption coefficient of sea water
sound absorption in sea water what is the absorption coefficient of sound in the atlantic ocean?
determine the effect of distance on sound pressure levels in moist air
decibel levels in moist air

Helmholtz Resonator Frequency

determine resonant frequency of a cavity
frequency of a helmholtz resonant cavity with a 4 inch neck

Threshold Hearing Distance in Moist Air

find the maximum distance for hearing a sound
furthest distance you can hear 100 dB hearing threshold at 80 degrees and 80% humidity

Audio Waveforms ››

generate sound with a specified waveform
play 1.5kHz sawtooth
specify a waveform as a mathematical function
play sin(3000t)+sin(4243t)