I'm trying drum replacer for the first time to replace a snare track. I select the snare track and chose Region FX - Drum Replacer. It seems to analyse something and then the result is three lanes in drum replacer each showing hits. However they bare absolutely no relation time-wise to when my snare hits happen. It seems to have created hits once every couple of bars or so but quite randomly timed. There's on average only one hit in Drum Replacer for every eight actual snare hits but it's more random than that. None of them coincide with an actual snare hit.
 
Any ideas? I'd really like to use this, but my first experience suggests to me that it hasn't got a clue what it is doing?
Now I know people use this so something must be wrong here?
 
Help please!

Hi. I just tried it on my laptop (imported a loop), and it worked for me. Did you adjust the threshold, interval and wet / dry signal? 
All the best.

Adjusting threshold and wet dry slider are inside Drum Replacer. It has already got it all wrong before I can adjust anything.

The threshold, and probably more importantly, the frequency knob, are how it works out where the hits are. I wouldn't necessarily expect it to get things right without doing some adjustment.
 
By default, the three lanes are set to be at a sort-of-kick drum frequency (top lane) and a sort-of snare drum freqency (middle lane) and I can't remember what the last one is right now.
 
First thing you'll want to do is look over at the left and find the power buttons for those three lanes. Turn the top and bottom ones off, and make sure the middle one is on. The middle lane is the only one that matters for your purposes.
 
If you're lucky, this will be reasonably accurate in terms of detected hits, but you'll have to use the filter dial to home in on the frequency of your snare, and the threshold to home in on the volume.
 
By the way, is this part of a kit recording? Is there spill on the snare mic from the other drums?

It's unlikely but I'll mention it anyway... Did you perhaps highlight/select other tracks accidentally prior to running Drum Replacer?

I suppose it could be a bleed issue. I'll try gating the snare track and bounce. See if that helps.

You don't typically need to. That's what the filter knob is for, really; enables you to home in on the core frequency of a specific drum. Pre-=gating can be useful with a really busy or messy recording though.

Bleed is surely not the issue.
You can set each of the drum replacer channels to pick out it's own frequency range / instrument from one and the same track.