new thread
Yeah, I know this is off-topic, but I figured that there were some pretty intelligent people here (and maybe a number of musicians; you just never know).
What is the frequency ratio between two notes that are a tritone (augmented fifth) apart from one another?
Your question is really one of physics, rather than music theory. I could be wrong, but here goes:
Two pitches an octave apart are at a ratio of 1:2 (i.e. A@440 and A@880). Since the tritone is actually half of an octave (a stack of two triones will give you a triad of root, tritone, octave), I would say that a the tritone should be at the frequency 1.5 times above its root, or the two pitches are at a ratio of 1:1.5. Make sense? This could be wrong.