Easy Seamless Loop using Second Pass Render in REAPER

You may have noticed that in the render the Render dialog, there's an option called "Second Pass Render." This is super useful if you want to make seamless loops, which are often used in game audio 🕹

How does it work?

When you enable Second Pass Render, REAPER will play the audio through once and then render it the second time. This helps make sure that effects like reverb and delay have enough time to build up properly.

This means that if you're trying to make seamless loops, where the beginning and end of the loop should have the same reverb and delay, Second Pass Render can help. Without it, the beginning of the loop might sound dry because the effects haven't had enough time to build up.

Another way to use Second Pass Render is when you use EQ or any other processing that introduces "phase distortion." If you render the loop in one go, it will create gaps in the sound when it loops. Therefore, using Second Pass Render can solve this problem.

Here’s a demo

That’s it!

Before this feature existed, we had to copy the loop twice and then edit it to get the effect. The introduction of Second Pass Render just eliminates this need ✨