I want to record a car engine and determine the RPM by analyzing the audio waveform without having the waveform from a known RPM to compare. Suggestions? Anyone know of a more suited group for this kind of question?
Just a guess, but I think if you knew the number of cylinders and what each one sounded like when it fired, then you could easily tell how fast the engine was turning.
I could very well be wrong, however.
William
There was a discussion on something like this on comp.dsp a while back IIRC...
Cheers, Martin
-- martin.j.thompson@trw.com TRW Conekt - Consultancy in Engineering, Knowledge and Technology http://www.conekt.net/electronics.html
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