Sounding

Sounding generally refers to a mechanism of probing the environment by sending out some kind of stimulus.

Sounding or soundings may refer to:

Soundings (journal), an academic journal of leftist political thinking
"Soundings" (radio drama), science fiction radio drama series produced from 1985 to 1989 in Ottawa
Whale sounding, the act of diving by whales

Medicine and surgery

Sound (medical instrument), instruments for probing and dilating passages within the body
- Urethral sounding, using sounds to increase the inner diameter of the urethra

Depth sounding, a measurement of depth within a body of water
- Sounding line, a weighted line for depth sounding
- Echo sounding, a type of sonar for depth sounding
Atmospheric sounding, a measurement of vertical distribution of physical properties of the atmospheric column
Vertical electrical sounding (VES), a geophysical method for investigation of a geological medium
Cone penetration test, a method used to determine the geotechnical engineering properties of soils
Sounding rocket, an instrument-carrying rocket designed to take measurements and perform scientific experiments during sub-orbital flight

Ionospheric sounding, analysis of ionospheric-dependent radio propagation using a synchronized transmitter and receiver
Automatic sounding, the testing of selected channels for quality by providing a very brief identifying transmission
Automatic link establishment, the worldwide de facto standard for digitally initiating and sustaining HF radio communications