Machine humming ambience - science lab

Room tone - bathroom hum

Fridge humming

Harbour marina with machinery hum

Room tone - kitchen fridge hum & ticking clock

Electricity sparking & humming (Moderate)

Arcade game - laboratory ambience

Room tone - neon lights flickering on with buzz

Electricity sparking & humming (Heavy)

Electrical hum with light flicker

City ambience - police siren & machinery

Acid dripping & hissing

Acid dripping & burning

Parking lot ambience (Underground)

Rain on roof with birdsong

Drone - pulsing bass

Room tone - store with neon sign buzz

Electric generator hum

Urban park ambience

Urban park ambience

Room tone - kitchen with buzzing fridge