jpff@maths.bath.ac.uk wrote:

> I suspect that if no one can explain why these opcodes are useful, or
> can fix them, it wold be best to remove them from the system.

Dont remove them please! I know tone, reson and the rest are musically
intuitive, but a more powerful too is always welcome...Suppose I want to
design a second order filter ... I can use H. Mikelsons biquad for that.
But for higher order filters the only way to accomplish this is with
filter2. Better if the coefficients can be removed at k-rate. Of course
theyll be unstable in most cases! ... Ill try a stable configuration and
see what happens as soon as I can. Has anyone tried it?
I really need a feature like this. By now I must implement a 3rd order
allpass filter and this is the only way!

Josep M Comajuncosas