I have a long recording of a train (here is a small sample) there are a number of clicks as the wheels go over joins in the tracks. I would like to detect the location of these.
Looking at the waveform:
There appear to be 8-10 clicks. Some are close together.
I can see that they appear as regions of sustained high amplitude. Is there a filter I could cross-correlate this with that would pick them out or is there another better method?