Hello,

Is DC blocking something that can be implemented for an incoming audio signal within PD, or is it a hardware issue? If it is something that can be done in PD, could someone point me in the direction as far as what objects I would use?

I have a looper I've been working on that uses delaylines, and i would like to minimize the build up of noise as I overlap recorded tracks.

All the best, Leigh

use [hip~ 5] to remove DC offset.

mvh

Yeap,
you can also use the dcblock~ object in the Pd-extended

Hey, Thanks a bunch!

i don't have a dcblock~ in my extended oO

@ slur

oops!
I REALLY thought I have used it in few patches, but now I see there isn't in my extended too. Something supernatural has happened !!

Well, just saw that it's in the floss reference pages, but there isn't (sadly) mentioned in which library you can find it.
http://en.flossmanuals.net/PureData/OscillatorsAndTables

@ udon_juan

Keep in mind that flossmanuals can be very helpfull in finding objects ... some times.

I remember using killdc~ but i don't seem to be able to find it anymore (it had dissappeared from 0.41.x extended i believe, could even 've been earlier).

@ geo_ker, thanks for the tip on the floss manuals. Good reading for me.

ok heres a dc blocker as described by
Juliu Orion Smith.

theres a link in the attached patch.

the coefficient (0.995) is set for 44100 Hz
and to my ears it sounds a bit different than a [hip~ 5]

vhm

http://www.pdpatchrepo.info/hurleur/dc-blocker~.pd

The first [dc-blocker~.pd] I posted was wrong.

This is now corrected and also I added gain compensation.

mvh