I want to have only one sample ( =>time 1/44100 s) of delay to realise RIF filter using fluence diagram:

e -----| a | ------ (+) ---------------------- s
| |
-----------| b |-----

I use the delwrite and delread expression, but it doesn't work well. The buffer have a limit value ? ( I use "delwrite~ aa 0.022" and "delread~ aa 0.022") .

Is there another solution ?

Thanks
Jérôme