While trying to figure out where does my “clunks” are coming from, I’ve used a some really cheap microphones, cords and USB sound devices off ebay that turned out to work really well, (see the attached image)
My shopping list was –
1$ USB Sound device
1$ Microphone (even comes with clip so it’s easy to hook to suspension parts)
1$ 3meters cord so you wind your wire all the way to the notebook in the cabin
Multiple that by the amount of USB ports you have and there you go – my version of a chassis ear
I’ve hooked up my mics to the left side hub, right side hub and right side top strut (I only have 3 USB ports for the matter)
Just by looking at the sound waves you immediately know that the clunks are coming from the right side hub area, further investigation (I hooked them to the upper and lower control arms and shoved one mic into a hole in the hub) turned out to be a bad wheel bearing after carefully listening to each channel….
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