Feel the Bass : Low frequency vibrations from WDG4s in DB Mode

Locos : Hubballi [UBL] WDG4 Twins #12122 + #12080,
Train : BCNA,
Place : Byappanahalli [BYPL],
Date : February 2016,
Plug an Earphone, Shoot up the volume & Close your eyes to feel the sound! :)
I had observed these low-frequency sounds produced while they are on DB mode long time back but my camera's mic were dumb to these sounds due to external noise. Guess those sounds were coming mostly from DB Fans or the Engine at that particular RPM. This video has almost captured the sounds and can be realized well if the bass is amplified.
In reality you can feel those vibrations from your body. I mean it. Those vibrations gives you a sense of how much power is sitting inside the Loco, ready to engage!
Thanks for watching. Subscribe, thumbs up and Feel free to leave a comment!
Happy digital train spotting on UA-cam! ;)

[@gauravkulkarni21]

In dynamic braking (DB) mode, the traction motors generate electricity due to downward force from containers (typically on gradient). And the motors are connected to big resistors to convert this force into heat. The engine sound is due to the force applied on the "prime mover" by generated electricity by traction motors. (Same like when our vehicle is at high speed and we reduce accelerator paddle without pressing clutch to control the vehicle)

[@pramathsb]

Thanks for watching :)

[@roshansrihari58]

Wow nice!! Yes, the vibrations really gives us an idea of how much power the beast contains!

[@pramathsb]

Thanks for watching! :)

[@basilkhot9252]

it can carry a load of 458 mattric tons

[@JishyFishy4106]

They together sound like Airbus A300/A330

[@thekingdomofrail]

Nice EMD SOUND

[@pramathsb]

Thanks for watching :)

[@din00o]

awesome!!

[@pramathsb]

Thanks for watching! :)

[@seemakemdfanseemak7287]

Realyy sound good

[@pramathsb]

Thanks for watching :)

[@sandeshts9190]

Super

[@pramathsb]

Thanks for watching! :)

[@pankajpatel93]

emd sounds like jet engine

[@pramathsb]

Thanks for watching! :)

[@yashassindhe237]

Pramath S.B that's because of turbo

[@snjvthakur24]

👍👍👍

[@pramathsb]

Thanks for watching! :)

[@ankushhait6720]

What's a DBR mode?

[@pramathsb]

en.wikipedia.org/wiki/Dynamic_braking
Thanks for watching! :)

[@ankushhait6720]

+Pramath S.B Thanks.

[@vasanthkumar7586]

Old cab G4’s are classic. Modem G4’s are ugly to look.

[@Simply_Trains]

DB mode?

[@pramathsb]

en.wikipedia.org/wiki/Dynamic_braking_(locomotive)
Thanks for watching! :)

[@Simply_Trains]

thanks bro

[@sreerams748]

They are WDP4

[@pramathsb]

Nope. WDG4 in WDP4 color
Thanks for watching :)

[@sreerams748]

Pramath S.B Ok