Mac0486
Newbie
Joined: 03 Dec 2004
Posts: 5
Location: Brewton Parker College, GA |
| frequency pitch relationship |
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Does anybody no a particular formula or something that will convert frequency (hertz) to pitch. I no 256 hz is Middle C or at least i think thats correct. And i know 20-20,000hz is hearing range for humans, and i've been working with EQ's for awhile. so i've kinda got a feel for it but i think it would be could to know the convertion factor. -i'm wierd like that!
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If a tree falls in the forest, it doesn't make a very pretty sound. |
Sun Dec 05, 2004 12:49 am |
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Mac0486
Newbie
Joined: 03 Dec 2004
Posts: 5
Location: Brewton Parker College, GA |
| pitch v frequency chart |
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nm, i found a nice little chart to tell me. if u wanna check it out, go here:
http://www.phy.mtu.edu/~suits/notefreqs.html
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If a tree falls in the forest, it doesn't make a very pretty sound. |
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Mon Dec 06, 2004 3:18 am |
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bluecorolla05
Joined: 08 Sep 2008
Posts: 1
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A is the starting note with a frequency of 440 Hz. Half of that is also an A, at 220 Hz. If you double 440 Hz, you get 880 Hz, but still an A.
But notice the difference. 440-220=220. But 880-440=440. So the higher you go, the more of a difference there is between the frequencies of the various notes. And the same goes the other way. The lower you go, the less of a difference there is between the frequencies of the various notes.
The pattern is the 12th root of 2. If you aren't inclined in math, that means that if you multiply that number by itself 12 times, you get 2. The 12th root of 2 is equal to approximately 1.05946309. So 1.05946309^12=2.
Starting with 440 Hz, 440x1.05946309=466.163 Hz, which is A sharp/B flat. Multiply that number by 1.05946309 and you get B. Keep doing that and you'll end up with A again, but an octave higher.
If you google all this, you can find a chart listing all the frequencies for many octaves. |
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Mon Sep 08, 2008 2:40 am |
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