Can anyone shed some light on what the difference between mu and V are as defined by the help document on the AEC module? In the DSP literature I'm familiar with, mu generally represents the adaptation step size but it's not immediately clear to me that's the case here. Nor can I say that I've ever run across an "Adaptation constant" before. My end goal is to be able to track the evolution of the adaptation step size of the filter over time and plot it in Matlab. I was going to achieve this by grabbing the value after each call to process(). Any help in achieving this task and understanding the differences between the variables would be greatly appreciated.