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Originally Posted by kategra84  i bet if you mix the two signals in the Polarity.wav or in the Picture above they will cancel out just as two phases of the same signal at 180°. |
You are missing the point of my previous post: You can not shift the phase of that wave file by 180° because you can't speak of a specific frequency. It makes no sense to talk this way about the phase of a complex waveform as there is no specific frequency or period. It is only applicable to periodic waveforms. (Sine, Cosine, Square, Triangle etc)
Here is a nice animation that shows the relation between phase and time:
Animation: movie of a sine wave (sinusoidal wave) y = sin x and a cosine wave y = cos x by Russell Kightley Media
I know many people will call a polarity inversion a 180° phase shift but that is wrong. Unfortunately much equipment/plugins, their manuals and other documents make this mistake which is probably the cause of the confusion.
Feel free to invert the polarity of the first half of the wave, align it with the second half and see if nulls (it should) but that doesn't change the fact that calling it a phase shift is wrong.
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ps - when i'll get home i'll mix the tow signal to see what happens
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What two signals? It is just a bounce from a section of sequenced music with only the kick and the bass soloed. The polarity is just flipped half way through by automating a plugin on the master bus (Flux Stereo Tools).
Alistair