In the  Schreier's Delta-Sigma Toolbox, there is two functions such as synthesizeNTF and realizeNTF.
I find that there is not a argument  which notify the quantizer's bit number .eg. single bit or multibit.
for example the realizeNTF's usage is [a,g,b,c]=realizeNTF(ntf,form='CRFB',stf=1). NO ARGUMENT notifys the quantizer's or truncator's  bit number!

i am confussed about it ,can any expert give me the answer!