Reaktor - schroeder allpas

I've got another question
I am comparing the pure data allpass~( cyclone library ) to reaktor's core allpas .
Reaktor core allpas , 2 delays in series

IN total , I ve go 6 allpasses in series (two in each core cell) , all with the same gain coefficient of 0.5 .

The allpas frequency is samps to s ( to ms for guireadout )

BOth are identical when it comes to frequency and gain coeff .

When feeding an impulse in both , there are some small differences
Top is pure data , bottom is reaktor

When zoomed in , in pure data the ouptut are only impulses of 1 sample long , in reaktor there is an obvious variation

You know what the problem was ?
IN reaktor I played the impulse file (1 unit sample spike ) one octave lower , ad thus renoise interpolated the impulse impulse before going into the allpasses , which had a totaly different outcome (obviously) .

I don't just copy paste stuff but some beginner guidelines are verry welcome .

Ofcourse I just started with comb into allpass etc..but there is nothing worse than thinking you know stuff while in fact you don't and that's where the confusion begins .

Diagrams of allpasses ,( see previous post) where the G.C. is taken before the sum etc...

JUst doing it for a few days now , and the best result I got is 5-6 allpass in series inside an allpass delay .

Some allpasses to smear the transient too .

Either way , it's not my goal to create a wonderfull reverb but the subject is verry interesting .

I' m afraid the math involved for FDN is way above my head

Yep , the dattorro digital plate is pretty easy , at least the strucuture shown here ( lot's of missing stufff )

It's basically the same as the alesis midiverb algo Pogram 22 .

I made some ready to go macro's to quicky replicate the structure , now replacing the 4 allpasses on top with a 6 nested alpasses in an allpassdelay will give you some huge sounds .

Alough I do think that mst of the structures found on the web are bassically nested allpasses without mentioning it .

The decay part in the tank section is confusing , it's obviously a gain coefficient to control the overall feedback but it doesn't really make sense to tap the output from there to dac , instead I tapped it from the delay in front of it

Edit..just as I thought the dattorro taps from multiple points in the tank to output ,

What's interesting about the midiverb is that taps are taken pre and post each delay line , these are then summed for l/r

According to the guy in the video , this strucuture was used for most of the midiverb algoritms

Also all diffuser gain coefficients are 0.5

https://www.youtube.com/watch?v=5DYbirWuBaU

Here is an attemp ( it does sound kind of ****** :) ,

I have the uberverb vst which is an algoritmic midiverb emulation ( most of the diagrams are to be found on gearslutz written down by an allround genius guy called acreil ) then another guy made a vst out of it :)

Here's the ensemble with the midiverb , made in core .

I just have a hard believing that these limited set of parameters (allpas coefficients and delay values ) are capable of the midiverb sounds , at least that's NOT what is happening in the ensemble .

IIRC midiverb had a maximum delay length of 3 sec ,any help welcome

It sound mediocre to say the least

WHat's also weird , while modelling the tank which needs feedback , when set to solid the orange feedback feedback lines dissapeared , but now they are always orange regarless solid setting or not