How Vic Firth Sticks Are Made:
Part 10 - Tone Pairing

 

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After being sorted for weight, the sticks are loaded into a testing station where they are struck by a hammer. The computer analyzes the frequency spectrum to find the value of the fundamental frequency that the stick produces. The computer records the exact peak frequency and then places the stick into a bin with others that match.

Now the sticks in each bin not only weigh the same, but they also have the same pitch!
The computer analyzes each stick to find the frequency. Click to see a full sized picture.
Click here to see a full sized picture of the hammer striking the stick.
The computer's analysis of the frequency of an individual stick. Click to see a larger picture.