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The theory behind the Generalised Cross-Correlation - GCC - (in general, not just the PHAT version of it) uses the cross-correlation of the recorded signals to estimate the delay between them. I am sure you are already aware of that, but if you consider the fact that cross-correlation cannot always differentiate between the different (temporal) components of ...


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The DTW approach is applicable to signals where there is an acceleration or deceleration between the observations of similar signals during the data capture and will show how similar or not the signals are besides the distortion from the "time-warping". I am not sure that would be the best approach for this case given nothing is indicating there will be a ...


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