Marty Kasprzyk

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About Marty Kasprzyk

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  • Birthday 06/02/1945

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    Olcott, NY, USA
  • Interests
    Wine making, gardening, dog training,

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  1. They may have been French violins from around 1789.
  2. A famous violin maker once told me about entering a competition. Afterward when all the violins were displayed on tables for viewing he said he had trouble finding his own violin.
  3. A bridge cut at a carefully chosen distance from the center of the tree will have both its back and front sides showing long medullary rays. Bridges of the same thickness but cut at all the other distances can have only one side with the long rays.
  4. I coat my fingerboard's upper surface with a thick layer of clear bar top epoxy finish which is extremely hard and wear resistant. This enables me to use wood which might be soft and low density.
  5. Maybe Strad used yellow chalk
  6. They look nice but I think you should erase these lines before you varnish it.
  7. The same thing is happening with electric violins. The acoustic violin acts as filter to change the vibrating string's sound character. This filtering action can be modeled with a computer program and it is possible to generate different filters to mimic different violins such as famous Strads, DGs etc. on the same electric violin.
  8. Why? ---a good player (college viola professor) asked me if I could make one. One of my early experimental large violas sounded pretty good with its C string detuned to F2 at 87Hz. Like other instruments (violin, etc.) the lowest open string has a very weak fundamental. But its A0 frequency was low at 170Hz so the second harmonic (the first harmonic is the fundamental harmonic) of the F note is strong so the sound was quite full and the other low notes on that string also sounded like the lower notes of other full size instruments. Attached is a frequency plot of the open F note and a frequency response curve of this earlier viola. I could have made a new 5 string neck, fingerboard and bridge for this viola but I decided to make an entirely new one. Many typical size violas have an A0 around 220Hz so I agree they wouldn't work as well with an added C string.
  9. Same question 15 years later: I'm making a large 5 string viola (380mm string length) for a friend who wants a low F string below the normal C string. Does anybody have any recommendations of what F string to use? (must not be a common problem)
  10. Hi David, A set of 4 small 1/2 size violin Wittner pegs weighed 29.0g.
  11. Wasn't the French who taught the bugs to polish the s....
  12. Sorry, I should have said: "Larsen Tzigane light violin strings have low tensions." Do you have any tables that compare all of these light string tensions? The tables I've found usually just compare medium tension strings from different makers.
  13. Overall envelope shapes look similar because Ray Chen, as he said, was trying real hard to make them sound similar. If this was a bowing machine or impact hammer test I would expect them to be a little more different. Although the envelope shapes are similar the individual peaks have very different amplitudes which would make the same notes from both violins sound quite different. However the big take away for me was that the Strad's entire envelope shape was about 5-10dB louder. That's a lot. In order to make the $69 play louder it is necessary to play close to the bridge which also brightens the sound. The Strad could be bowed farther away from the bridge and still be adequately loud. This can produce a darker more mellow sound when desired. Thus the Strad had a desirable wider range of sound colors which was apparent to me in the recording.
  14. Your reference was a very interesting read however Einstein was also considered a crackpot for a long time: 'With hindsight, it seems as though scientific breakthroughs sweep quickly to universal acceptance. A paper is published and everybody says, “Eureka!” But that’s not necessarily the case. Sometimes scientists have too much invested in the status quo to accept a new way of looking at things. This was certainly true when Albert Einstein‘s 1905 paper on “special relativity” first challenged the British conception of ether. Einstein argued that space and time were bound up together (something he would elaborate on in his theory of general relativity of 1915, adding gravity to the mix of space/time), a complicated idea that contradicted the long-held belief in something called ether. In the U.S., a few understood it, but, in general, relativity was ridiculed as “totally impractical and absurd.” '