Mikulas

I would like to re-implement the gizmo~ object in pure max/msp, for educational purposes, to see how it's done. Can anyone here give me any pointers as of where to start? I am familiar with basic spectral processing - I have experimented with various spectral freezes and other stuff based on the tutorials I could find online. But pitch shifting, my ultimate goal, is still unclear to me. I can imagine that one has to shift the bins exponentially, to preserve the timbres (as opposed to bin shift), but I have no idea how to treat the phase.

I would like to re-implement the gizmo~ object in pure max/msp, for educational purposes, to see how it's done. Can anyone here give me any pointers as of where to start? I am familiar with basic spectral processing - I have experimented with various spectral freezes and other stuff based on the tutorials I could find online. But pitch shifting, my ultimate goal, is still unclear to me.  I can imagine that one has to shift the bins exponentially, to preserve the timbres (as opposed to bin shift), but I have no idea how to treat the phase.
Thank you very much.


how-does-the-gizmo-object-work

Here is the article in which Richard Dudas explains some of the insides of [gizmo~]:

http://quod.lib.umich.edu/i/icmc/bbp2372.2002.028/--spectral-envelope-correction-for-real-time-transposition

Here is the article in which Richard Dudas explains some of the insides of [gizmo~]:
http://quod.lib.umich.edu/i/icmc/bbp2372.2002.028/--spectral-envelope-correction-for-real-time-transposition
Click the 'pdf' button to get it.


how does the gizmo~ object work