[PD] biquad and karplus-strong

[Peter P.]

Dear Orm,

* Orm Finnendahl <orm.finnendahl at selma.hfmdk-frankfurt.de> [2016-06-14 12:24]:
> Hi Peter,
> 
>  BTW: The patch in the pd tutorial uses [z~ 1] which you can replace
> with [biquad~ 0 0 0 1 0] and your suggestion to do the averaging in
> the biquad~ should simplify that patch even more.
> 
> The probability based polarity change could be done using the attached
> patch.
Thank you! This is quite elegant, vanilla Pd and works with a blocksize
of 1 as well! Did you come up with this or is there another source which
can be credited?

I am wondering if someone implemented the Karplus' and Strong's 'decay
stretching' in Pd as well.

best, Peter