Hallo!
no. I'm using the help example that came with the binaries
[bang] | [openpanel] | [read -resize $1 array1] | [sndfiler]
Ah - I think I know whats the problem: in an earlier version of [sndfiler] the arguments were in a different order - so I guess you still have the old binary !
So you should delete all the old help-files and binaries and then install those from http://grh.mur.at/software/sndfiler.html ...
LG Georg