Hi,

I'm trying to create a filterbank, by simultaneously passing audio into 11 bp~ filters.

The problem is now, that I have to find out which of these filters has the highest value as output (actually I want the filters with the two highest outputs).

However, I'm completely stumped as to how to do this. I'm new to puredata and more used to c-style languages, so this is a problem.

If the answer uses lists in some way, how do I construct a list from 11 outputs that output simultaneously?

thanks

if your use to C try using fexpr~

I'll simplify it from 11 to 3 and only finding the one with the highest output.

[fexpr~ if($v1 > $v2 && $v1 > $v3, 1, if($v2 > $v3, 2, 3))]

This will create an object with 3 signal inlets (one per $v#) and 1 signal outlet.
Careful with fexpr~ since it is computationally expensive.

If you want to transform it's output into a message use [envrms~]:

|
[envrms~]
|
[t f f]
X <- cross the links so that the first outlet goes to the second inlet
[sel ]
| <- use the second outlet

This patch outputs a value from a signal only when it has changed.

Hi,

I think it also depends on how you measure the output of your filters, because audio signals vary over time (that i 'm sure you know...). So you might want to compare your signals in a less crude way. You could take the average of your output level over a certain period of time, for instance.