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#12672

I need to create a signal of volume (vs. time) from a flow signal – a record of a person breathing. This should be relatively easy except that the volume drifts, so I would like to reset the volume to zero at every -ve to +ve zero crossing of flow (i.e. at the start of a new breath.) I am going to need to do this every time I analyze a recording that I make so the process needs to be automated.

Suggestions?

Thanks,

Paul