To Roman's suggestion, this works well.  For the sake of your speakers and DSP chain, I'd add a [clip~ -1 1] to the end of that to be safe, and place that combo both right before the [delwrite~ dub] and on the output stream. 

For the sake of maximum dub, use a [vd~] instead of a [delread~] and slowly apply modulation to the base index delay amount.  Say, 500ms +/- 50 by modulating the base amount either with a periodic function or [lop~] filtered [noise~].  I've yet to try this, but in my head it seems dubby.

Brandon

On Fri, Oct 29, 2010 at 6:00 AM, Roman Haefeli <reduzent@gmail.com> wrote:
On Fri, 2010-10-29 at 11:43 +0200, Derek Holzer wrote:

> But one problem in Pd is that delay lines and filters tend to "blow up"
> instead of saturate like the old school gear.

Good point. Real tape delays cannot blow up. Have you tried to put a
tanh function in the feedback loop? Haven't tried myself, but I could
imagine that it'll work.

Roman


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