Listen
Tip: press play to see the sound's live frequency spectrum in blue over the waveform.
Recordist's notes
It was recorded at the Institute of Materials, associated to the CSIC. We can hear an ultrasounds machine, which produces ultrasounds that move through the water inside the machine, so everything’s that’s inside the water will be affected by the ultrasounds. We do not hear the actual ultrasounds, but the noise produced by the machine while it’s working. Recorded by José Miguel Pérez Aparicio. Recorded with a Zoom H4n.
About the place
El Goloso is a town of about 19,036 people in Madrid, Spain. OttoAnna lists 20 field recordings from here.
Equipment mentioned: Zoom H4n. One of the most widely used field recorders of the 2010s, with X/Y mics and two XLR inputs.
Recorded nearby
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Sources & credits
- “Calle Sor Juana Inés de la Cruz, 3, 28049 Madrid, España - Ultrasounds machine” by josemiguel.pereza – Public Domain Mark · radio aporee ::: maps via Internet Archive
- Reverse geocoding: GeoNames – CC BY 4.0