Hallo, ydegoyon@gmail.com hat gesagt: // ydegoyon@gmail.com wrote:
someone here in the workshop ask for the bitcrusher vst plugin for pd ? is it available in some way? ( better with basic pd objects )
According to: http://cmt.siba.fi/studies/Courses/2001-2002/VST/plugins/CMT_Bitcrusher/ it's very simple.
For the actual bitcrushing, you can use something like this:
[*~ BD]
|
| [wrap~]
| |
[-~]
|
[/~ BD]
Replace BD with your desired bit depth. This doesn't do rounding, but truncates signales to [int] after multiplication, but the net result is similar.
For the distortion use [tabread4~] with some precalculated tables. Some weeks ago I added a Vanilla tanh.pd in the svn repo in purepd/, that uses [exp] and the trig-identity for tanh. There also is sinh and cosh, if you want them, or make your own after refreshing the needed math on pages like this: http://math2.org/math/trig/hyperbolics.htm
Or just use [expr].
The downsampling can be realized by sending the signal through a [samphold~] that is triggered by a variable rate [phasor~].
The abstractions library for RjDj (for which we can use Pd builtins only and also no expr) includes the downsampling as [e_alias] and the tanh-distortion as [e_softclip], see: http://trac.rjdj.me/browser/trunk/rjlib/rj
All this sounds pretty nasty! ;)
Ciao
Frank Barknecht Do You RjDj.me? _ ______footils.org__