The count-in gets merged with the song audiio track (or the background track if you are using multitrack) when you render the output audio. You can choose the render operation from Reaper 's File menu. It's usually done at the end of the work but you can do it as soon as you have chosen the Limiter settings.
I don't know how to change the count-in sample though, but you can bluntly su substitute it with copy-pasted fragments from any audio file.
Render output? Goodness, i dont think ive ever done that before. i usually use audacity to line stuff up before i even start, using item properties to line it up perfecty. your way sounds like less of a hassle then what i do. Is it that easy?
If you navigate to where your count-in samples are stored, you can just drag and drop them onto your track. REAPER's default samples are stored in (your REAPER install folder)\Count-In Samples. You can add your own samples to this folder if you'd like. I like to browse my FL Studio samples and use one of those.
In terms of mixing, I keep a meter on my MASTER track that I use to properly level my count-in. I like to keep it around the same level as the start of the song. From there, once you get it positioned correctly, you have the sound you want, and you've leveled it properly, you can add additional FX to it in REAPER. I sometimes add compression and reverb, but there are plenty of options that you can use.
so i find reapers count-in samples folder and, either use the default ones or add my own samples in, and reaper automatically knows its a count in and will acknowledge it is one when i put it on my flash drive and stick it in my xbox?
I can't believe ive never even noticed the FX button, this should be fun.
Thank you guys for such a quick response! if i learn these, ill go back on my older customs and add em in!!