[PD] Analog/good-sounding oscillators in PD

[tristan chambers]

Dealing with rollover (I think it's called) is discussed in Miller
Puckett's "Theory and Techniques of Electronic Music" 
http://www-crca.ucsd.edu/~msp/techniques.htm. Therein he describes a
couple of techniques like band limiting and upsampling.

I have played with the examples a little bit (which are included in
the documentation with Pd 0.39), but I think it might be best to use
externals to this end. creb has band limited oscillators (blosc~) but
they are not included in the current pd-extended, so you'd either have
to compile them in or wait.

Regarding filters, have you tried the moog~ filter? Also iemlib
contains quite a few filters worth checking out. it's in Pd-extended.


Good luck,

Tristan


On 4/6/06, cyborgk at nocturnalnoize.com <cyborgk at nocturnalnoize.com> wrote:
> Hello everyone,
>
> I'm working on a set of abstractions that will allow users to easily
> sequence rhythmic-pattern style music; basically, to make it easy to
> create IDM/electro/minimal-techno style stuff. Anyway, there's one major
> weakness to the whole project: PD oscillators don't sound good! Also, the
> filters I've tried don't sound very analog at all.
>
> So, my question is:
>
> 1. Does anyone have any good, "analog-sounding" oscillators already
> created? I guess I only need saw, PWM square, and triangle, but they need
> to sound GOOD (like Reaktor, basically). I see how to do simple versions
> from the example patches, but I don't know enough DSP to get rid of the
> digital sound. For a great example of the kind of sound I want, check out:
> Asynth vst from antti at smartelectronix.
> http://antti.smartelectronix.com/
>
> 2. What would be the most analog sounding filter to use?
>
> 3. Is wavetable synthesis a reasonable option? How do I create a custom
> table to use for such synthesis? For example, if I synthesize a wave of
> one period in another program, how long should it be? I know this should
> be easy, but my brain is broken on this question. My gut instinct is that
> a wavetable would only sound good near original frequency or you just get
> the typical digital artifacts from pitch-shifting a sample... is that
> correct? I'm guessing what I'm really talking about is ROMpler style
> multi-sampling,  and selecting the wave closest to input frequency. Don't
> know if anyone built this already.
>
> Btw, I can solve the problem for myself by loading in the VST~ external,
> but I want what I build to be cross-platform so that it is most useful to
> interested people in the community.
>
>
>
>
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