Blending IR with dry dignal

I use IRs for my mandolin and acoustic guitar patches. But I find that its necessary to mix the IR and the piezo pickup to keep the dynamics, and to avoid feedback that comes from too much midrange in some IRs.

I tried adding a mandolin IR to a Cab block for my mandolin patch, but couldn’t find a way to mix the IR with the dry mandolin. I can turn off the right side of the cab block, and the level control is still enabled. I thought that would do it. But turning off one side of the block doesn’t blend the dry signal, it just turns off that side of the block.

Is there a way to blend an IR with the dry signal without having to setup a parallel path just for that simple purpose? Helix has a mix control on its IR blocks - does QC have something similar and I just missed it?

If not, this is an important feature for acoustic IRs.

A possible workaround would be to load a neutral IR (one that doesn’t do anything) on the other side of the cab block and mix to taste

1 Like

Yes, it would require an IR that has all frequencies at the same level so that the output is the same as the input, sometimes called a dirac spike. Does anyone have such a unit IR?

There are some examples here
https://www.greendog.co.uk/af/cabirs.php

Thank you very much!

Hi, do you also have the problem that you custom IR’s levels are really lower than the stock speaker microphone IR’s ? I have to raise the signal at least 10dB to get the same levels as when bypassed, and I think it might might not be good for the sound resolution…

In my acoustic patches I use a path splitter to get two paths. In path 1 I have a cab block with custom IR loaded. In path 2 I have any block I can use to adjust volume. When you do this the splitter block will give you a 50/50 mix. Go 100% on each path to get the volume equalized on both paths. Then you can adjust the splitter mix as needed. I usually land on 70% clean / 30% IR in my acoustic guitar patches (for example). Of course, put all of your effects after the merge of the two paths. Or something like that. Hope this helps.

I agree that works, but I don’t want to use up a path for a mix control that should be in the block.