Fourier Synthesis and PlaybackAudio and Spectrograms of Sample SignalsComputational Acoustics - boundary element method , acoustics, sound

SONAR audio - Selection of biologics, ships, submarines and sonar sounds.

Earthquakes and Whale Sounds -VENTS Acoustics Program - The sounds are derived from events detected using the SOSUS system and autonomous hydrophones

The Sound of Bells - The sound and tuning of church bells. WavAnal, a free software package, is provided for spectral analysis of bells.