Quote:
Originally Posted by kyleb350
I'm no expert in this field, but aren't there still a number of unknowns you'd need to know before making these calculations? I see you make an estimate on speed, but wouldn't gearing and exhaust acoustics also come into play? Also, it's probably a safe assumption, but still an assumption that the car is shifting at redline.
Excellent analysis though.
|
Thanks, gearing and exhaust acoustics absolutely affect the overall spectrum of sound (how much power/peaks occur at which frequencies). There is also a boat load of broadband wind and tire noise in the spectrum. However, you should generally have a prominent peak based on the sound directly from each piston firing and for that gearing and exhaust are not really relevant.