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
