On 1/10/12, Alexandre Torres Porres porres@gmail.com wrote:
sorry, what dont you get?
I guess the shifter+mixer makes sense for the harmonizer--I just don't see why it's running when I just want to hear the pitch shifting effect by itself. Is that just a mistake?
This is unrelated, but when I use [openpanel] under linux, it only lets me select *.pd files. I guess I'll mess with readsf~ by passing messages so I can try it out with some sound files.
you're supposed to first hear the beatings and then the shift up anyway.
well, let me try with some oscilattors myself, that should be fun
see ya
2012/1/9 Charles Henry czhenry@gmail.com
Hey Alex
I'm just trying this out. I didn't have a sound file I particularly wanted to try, so I just plugged in an osc~, and what I found on the output: a mixture of the original tone with the shifted one.
So, the shifted tone was clearly audible, but as I shifted the frequency, I could hear first the beating of the tones then two tones.
And upon reading into the patch, that's clearly what you're doing in a subpatch, but I don't get why?
Chuck
On 1/9/12, Alexandre Torres Porres porres@gmail.com wrote:
Hi Folks,
working with these phase vocoder stuff, I thought I'd try and do a simple shifter/harmonizer with it once and for all. The phase vocoder shifter I found in pdmtl doesn't work as a harmonizer, and the latency was pretty high and not constant, so I did this. It's all as a Vanila abstraction!
I have 2 short buffers (arrays) and do crossfade between them, I got some phase issues trying out and building it, but they now seem reasonably
fine.
I just did this, so I should work more on it to make it more stable and robust. I'm sure there are some bugs around, and it's still very dirty
and
needs code cleaning. Maybe I should try and implement it with delay lines as in pdmtl, hmmm, I guess it'd be better, right? Hmm... Later on when I have the time...
Anyway, this goes back to the Pd Shifting thread I started here a while ago. I really like the quality of the phase vocoder. Somehow I don't get interested so much on other techniques and such. Yes, I assume there are some advantages out there, so what exactly would I be missing?
Well, Check this thing I did out, see what you think, let's talk some
more
about pitch shifting....
get it here: http://sites.google.com/site/porres/pvoc-shifter.zip
I wish to officially release it along with some other tools I'm building for my PhD, soon to be over...
by the way, I see this object is finally available http://www.katjaas.nl/pitchshift/pitchshift.html need to try it out.
cheers alex