I realise this is a very specific question which may not be of use to many others, however I am at my wits end with the issue at hand.
I am designing a parametric EQ based on the Biquad EQ equations by Robert Bristow-Johnson. The filter works perfectly and using the audio example "measurement" with PD, I have the patch plotting the mag & phase response to prove the filter is working as desired.
My issue is, the patch throws out "stack overflow" warnings when the patch loads and any time any of the freq, Q or gain parameters is changed and I can't figure out why.
I intend to use libpd to use this patch with Android, I so would like the patch to be working without fault before attempting to use it with libpd and Android studio.
The "FilterTestBench.pd" patch is top level patch.
I have tried different ways of banging in the different values in different orders in case that was the issue, but haven't found a solution yet.
Any suggestions, help or experience with similar issues would be greatly appreciated.