Pardon my French. I took my '48 out for a drive with a small camera mounted on the seat frame. The road was what we call a "broken ice" floor. Rough as a dirt road with washboard. The video is linked below.

I can hear the squawk of my clutch pedal and the squeak of wiper blades plus various rattles but what in the world is the sound like an old rattling sewing machine about 3/4 through the video? When I'm driving, I don't hear that. It seems like the cheap microphone on the camera picks up something I don't hear.

Is that lifter sound?

Any audio engineers out there? Can a cheap microphone pick up sounds outside my audio range and play them back in my range?

One Minute of Driving Video. 12MB.


1948 3/4-Ton 5-Window Flatbed Chevrolet

34 Years. Now with a '61 261, 848 head, Rochester Monojet carb, SM420 4-speed, 4.10 rear, dual reservoir MC, Bendix up front, 235/85R16 tires, 12-volt w/alternator, electric wipers and a modern radio in the glove box.