![]() You can change your choices at any time by visiting Cookie Preferences, as described in the Cookie Notice. Click ‘Customise Cookies’ to decline these cookies, make more detailed choices, or learn more. Third parties use cookies for their purposes of displaying and measuring personalised ads, generating audience insights, and developing and improving products. This includes using first- and third-party cookies, which store or access standard device information such as a unique identifier. If you agree, we’ll also use cookies to complement your shopping experience across the Amazon stores as described in our Cookie Notice. We also use these cookies to understand how customers use our services (for example, by measuring site visits) so we can make improvements. > appropriate pitch.We use cookies and similar tools that are necessary to enable you to make purchases, to enhance your shopping experiences and to provide our services, as detailed in our Cookie Notice. > too busy to experiment with filing an expensive fork that far from > devices and all were 6-8 cents flat (if those numbers on the right side of > fork was compared to Tunelab (calibrated via phone) and other cheaper tuning > that translate into cents in the A440 range? The fork is stamped A440. > temperature) beat 19 times in seconds or about 2 beats per second. > There must be some mathematical formula. cents ratio although I would like to learn more about that. > Thanks for all the input and suggestions. Why it works, or risk comparing the wrong partials for the task at hand. Make sure you understand the arithmetic of Yes, I used the technique when I took the exam. > tuning exam as it can't be visual, only aural? Jim, I like your quartz suggestion can it be used for the > experiment with filing an expensive fork that far from appropriate I value the suggestion to return it-I'm too busy to > (if those numbers on the right side of the box in Tunelab equal > phone) and other cheaper tuning devices and all were 6-8 cents flat The fork was compared to Tunelab (calibrated via How does that translate into cents in the A440 range? The fork > room temperature) beat 19 times in seconds or about 2 beats per cents ratio although I would like to learn more about So 2 beats per second difference from A 440 would be 8 In case your specific question hasn't been answered, beats per second is Jim, I like your quartz suggestion can it be used for the tuning exam as it can't be visual, only aural? I value the suggestion to return it-I'm too busy to experiment with filing an expensive fork that far from appropriate pitch. The fork was compared to Tunelab (calibrated via phone) and other cheaper tuning devices and all were 6-8 cents flat (if those numbers on the right side of the box in Tunelab equal "cents"). How does that translate into cents in the A440 range? The fork is stamped A440. The fork (warmed to room temperature) beat 19 times in seconds or about 2 beats per second. ![]() I don't understand the math of the beats vs. > On Jan 20, 2011, at 8:52 AM, James Sasso wrote: On Jan 20, 2011, at 6:04 AM, Al Guecia/Allied PianoCraft wrote: Or, if you change A2 by 1 cent, you've only changed its fundamental 1/16 Hz, because its 16th partial is A6, so 4 octaves below, the 1 Hz (1 cent) is divided by 16. ![]() So for example, if you change A3 by 1 Hz at the fundamental, you've changed it 8 cents, because A6 is its 8th partial, so the 1Hz change is multiplied by 8, and 8 cents at A6 = 8 Hz. And, it's true whether you're thinking about A6 as the fundamental, or as a harmonic of a lower note. This is the only pitch for which this is true. ![]() So at A5, 2 cents=1 Hz, and now, here's the key, So:Įvery half step contains 100 cents, but the Hz doubles each octave higher. Memorize what Al wrote, plus the key below, and everything else can be estimated in your head from that. ![]() Here's an easy way to convert between beats and cents. ![]()
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