title: How to apply phase correlation in 1D signal?
body: <p>Log polar transform is commonly used in image with phase correlation using Fourier transform for estimating rotation and translation etc.
     However, I am little confusing how to apply it in audio signal. I am trying to estimate time shift between two audio signal through log polar transform (LPT) and phase correlation.
  I applied LPT using <a href="https://en.wikipedia.org/wiki/Log-polar_coordinates" rel="nofollow">https://en.wikipedia.org/wiki/Log-polar_coordinates</a> in audio signal and plotter using matlab with polar(theta,rho), until here, there is no problem, problem is I am not sure how to apply phase correlation for this transformed signal.
     Thank you.</p>