A Hydrophone. This is a waterproof microphone essentially. For simple work at modest depths, you could use an ordinary microphone, making very sure that it and its leads were well waterproofed.
A hydrophone is a microphone used to capture and record underwater sound. It is commonly used in marine research, underwater acoustics, and for detecting sounds in underwater environments such as in submarines, seismic exploration, and marine mammal studies.
Electrocardiograph: a device used to monitor the electrical activity of the heart. Phonocardiograph: an instrument used to record heart sounds and murmurs. Myocardiograph: a device for recording and analyzing the mechanical activity of the heart muscle.
crackling sounds
The state that sounds like a musical instrument is Oregon.
The state that sounds like a musical instrument is Oregon.
The instrument that sounds similar to a glockenspiel is called a xylophone.
Some types of fish known to make sounds underwater include croakers, grunts, and toadfish. These fish produce sounds by vibrating their swim bladders or rubbing their body parts together.
A device that listens for sources of underwater noise is called a hydrophone. Hydrophones are used in various applications, including marine research, underwater acoustics, and naval operations, to detect sounds such as marine life communication, geological activity, or human-made noises. They convert sound waves into electrical signals for analysis and monitoring.
an Indian instrument similar to guitar but sounds different. sounds annoying
The stethoscope.
ausiliscope
trompet