https://forum.renoise.com/t/convolver-applies-dc-offset-filtering-to-impulse/44886
Here is a thread with discussion regarding certain characteristics of the convolver. Seems like you’ve discovered another quirk loading the exact impulse into the convolver as IR 
nice idea to come up with… To me it looks like some minimum phase filtering happening, maybe DC filter, and resampling filter also, then the convolver has this crappy tone control that maybe also has its impact in center position. You know…the 1 sample spike is kind of a very perfect theoretical impulse, containing components that aren’t audible, DC and very high freq components - if that stuff was removed with filters, and also phases of frequency components moved by these filters, the result can look like what we get here. It should sound right about the same though, unless you modify it in certain ways. Maybe it is one thing to watch for when convolving IRs multiple times with each other, to use a convolver with direct throughput for the task, to evade possible degradations of the data?
Thanks for the link. Looks like we’re not the first to try to understand what processing is happening inside of the Convolver
I’ve done a bit of online research and… this stuff is way above my head!
BUT here’s something that may be totally wrong but makes sense to me: if you load an impulse file as the impulse response, and play the same impulse through it and render the result to a new sample, what you get is…
the impulse response of Convolver itself?
