Hi. I'm new to Reaper, but loving it. Great job to the whole Reaper team - I've ditched Adobe Audtion forever! Anyway, I need some help with something simple. I have a session with multiple tracks, all using FX inserts or midi VSTs. They use a fair bit of CPU. So, when I'm happy with a track, I want to 'render' or 'mix it down' to a single audio file with all panning, FX, etc applied. That way I can free up some CPU resource. How do I do this, just for a single track so that it's hardcoded with all the FX so I can then play it back as a straight audio file? Thanks in advance.

Try the new Freeze function. DB

the fastest way is right click on the item in the track you want to render and click on "apply fx to items as a new take". In this way you can have both the clean and the fx version of the same take in the same track. Just bypass the fx in track and use the new take to have the sound you want...and if you change your mind, you can select the clean take, put on the fx and change the sound...apply again the fx as new item and...two different versions of the same fx take in the same track...and go on and on :P

thanks for the responses. It's mainly guitar stuff I want to mix down. If I'm running 3 guitar tracks, I'm using Amplitube. The audio files are 'clean' with Ampli running, normally in a bus track for each, which is a resource sapper. Once I've tweaked the settings and got the sound I want I want to commit it and create a file for each guitar track with the Fx burned in. In Audition I could do this simply my selecting the bus and 'mix down to file'. I could then get rid of the original guitar track and the bus which would free up a ton of CPU + memory. I'm sure there is a similar approach in Reaper, just can't find it!

yes, the way i said ;)