CAR CABIN NOISE REDUCTION | REDUCING ROAD NOISE | ENGINE SOUND IN CABIN | VIBRATION | PART-2

This video is all about how to reduce cabin noise / sound and vibration inside car cabin , there are various methods of noise and vibration reduction inside a car cabin like damping but we are going to focus on the methods from basic to complex or we can say more important to less important .
in this video we lubricated the hydraulic engine mount to reduce the engine vibrations (engine noise )which gets translated to noise inside the cabin , as noise is the side effect of vibration , so the very first step to reduce noise is to reduce the vibrations first .
more of a problem in diesel cars than petrol

secondly , another source of noise is either road noise or tyre noise or both
in this video we dumped the manufacturer's sound insulation , which was on the backside of inner fender liner and replaced it with thermo - acoustic blanket , which acts like damping sheet which we usually use in audio application but alot lighter than traditional damping sheet . so we applied one layer of blanket on the backside of inner fender liner , covered almost 60% of the fender liner , whereas it was just 10% covered from factory.

Its the second video of this series first video was on engine mount lubrication to decrease the vibration transfer to the cabin
video 1 -    • CAR CABIN NOISE REDUCTION | REDUCE | ...  

DAMPING SHEET - https://amzn.to/3cHj9Td