Find a musician friend with a chromatic tuner. You won't have to rely on determining pitch with an untrained ear.
CB An audio engineer with "Trained ears" :-) Quoting Dave Tutelman <[EMAIL PROTECTED]>: > At 02:15 AM 10/15/04 -0400, [EMAIL PROTECTED] wrote: > >In a message dated 10/12/2004 2:16:48 PM Pacific Daylight Time, > >[EMAIL PROTECTED] writes: > >>The ball matches the club head of No. 1 the best. If you can get the > >>natural frequency of the ball to be the same as the natural frequency of > >>the face you will get the best smash... > > > >Do you know of a way to measure a balls natural freq. and a club face's as > >well, if so that could be huge in fitting. > > The clubhead is easier than the ball. Here's how I've measured the > clubhead's natural frequency a few times in the past. > > Sitting near a piano, tap the middle of the clubface with something hard, > preferably something metal. The hard tapping tool should be something that > won't resonate itself; first tap it against something hard, and make sure > it "thuds" instead of "rings". If it rings, your ear will have two tones > (the clubhead and the tapping tool) to confuse it. > > OK, tap the clubface and listen to the ring you get. As if you were tuning > an instrument, alternately tap the clubface and play a note on the piano, > until you have the same tone. Now look up that note in a reference book > that translates notes to frequency. (Tables of musical scales are pretty > common in science reference books and some music reference books as well.) > Now you know the frequency to some reasonable degree. It doesn't have to be > too precise, because the ball's resonance peak is quite broad. > > Problems with this method: > * You need something of an ear for music. In particular... > * You need to be able to hear which octave a note is in, or you can be > off by a factor of two or more. > * Modern drivers with big spring faces have more of a "clank" than a > "ring". (Drivers from five years ago were much easier to measure.) That > means that the tone is polluted by harmonics. Your ear has to be good > enough to hear the fundamental and match the fundamental to a note on the > piano. > > Finding the resonant frequency of the ball will take a lot more thought. > Maybe somebody else knows how. A strobe series just after impact (like the > one in Bernie's collection from Spalding) might be an approach, but I think > the precision would nor be very good. > > Cheers! > DaveT >
