DIY electret hydrophone based on Primo EM172 capsules

Quick stereo-hydrophone test in a sink

Walking to the post office.
You can here: leaving the apartment, elevator, walk through the city, ATM, and it ends with the post office

Binaural walk in Bratislava

I've placed a pair of microphones into a bird-feeder.

Bird feeder

Recording of a tram crossroad in Prague (I.P. Pavlova) from ants perspective.
For best experience listen on headphones from original file (via download).

Tram crossroad from ants perspective

Recorded with Elektrosluch
https://zvukolom.org/instruments/elektrosluch-2/

Computer falling asleep (electromagnetic recording)

Download the original file for best experience.
Recorded with Uši microphones and Sound Devices 702

Fireplace

Binaural recording of a street performer - listen on headphones!
Get uši: zvukolom.org/product/usi-microphones-pre-order/

Uši test - binaural recording of a street performer

Backgammon game excerpt (stereo contact microphones)

Električky

Električky from Ants perspective

Few moments of Bratislava's Dawn Chrous, the time of the day when all the birds are waking up – and so is the city.

Recorded with my DIY SASS rig, fitted with Uši microphones into Sound devices 702. Low-cut filter was applied at 60 Hz.

Bratislava Dawn Chorus, 4:45–5:45, 26. 3. 2015

Dawn chorus recording excerpt. Recorded with binaural head.

Dobrá Voda, 29. 3. 2015, 6:13 - 7:00 am

Electric kettle boiling water, recorded with my custom hydrophone and contact microphone.
Hydrophone was placed inside the kettle, contact mic underneath.


Electric kettle boiling a hydrophone

Using a tool of my design "Elektrosluch", I've been able to capture electromagnetic fields of these machines. Since their engine is electric, their electromagnetic field is very loud and one can hear not only the motor pulls/breaks, but also various background events and current streams, running through the vehicle.

Recorded with Elektrosluch 3 into Olympus LS-11.
Recording has edited dynamic range.

Electromagnetic Trolleybus

Sonic postcard from little town in Croatia.
Interweaving patterns of language, insect communication and ambiences.

Recorded with Uši Pro into Sound Devices 702

Omišalj

Download/Buy Zvuky Slovnaftu EP:
https://jonasgruska.bandcamp.com/album/zvuky-slovnaftu

"Zvuky Slovnaftu" (Sounds of Slovnaft) is a set of field recordings, dedicated to flare stacks during unusual activity at Slovnaft oil refinery, Bratislava, Slovakia. These sounds were heard tens of kilometers around and kept the city awake for several nights. 
I tried to capture the atmosphere from the immediate distance, including the polymetric variations of rhythmic patterns produced by crickets and cicadas, joined by the massive beating of the flames. 
Warning: contains a lot of very low frequencies

Krajina (from Zvuky Slovnaftu EP)

Collection of field recordings from Choč mountains in north-central Slovakia, capturing soundscapes of local villages Kvačany and Veľké Borové, surrounding meadows and insect population.

ƒiēldṩ

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