Re: [LAD] Determining Phase

On 06/25/2011 04:23 PM, pshirkey(a)boosthardware.com wrote: talking about the "phase" at some particular point in time doesn't make sense. first you would have to do an fft (whose resolution is bound by the window size), and then you'd have to look at each frequency bin separately, because they will all be at different relative phase. when you talk directly into my ear, the voice/ear system will be roughly zero phase. when i move away even a few inches, there will be a linear phase "distortion" due to the fact that i'm now one wavelength away at some mid frequency, but several wavelengths at high frequencies. so "phase" is not really a meaningful thing unless you are talking about recombination of strongly correlated signals. another example: if your sample consists of a sine at 100hz and one at 200hz, after 10ms the first component will be at 0° while the second is at 180°, iff both started at 0° in the first place. but why would anyone care? with real-life sounds, this whole exercise becomes meaningless. what are you trying to accomplish?