LPC resynthesis with ftm and expr...

jojo cello's icon

Hello all,
I'm currently working on LPC analysis/resynthesis.
For numerous reasons, I'd like to do the implementation with FTM library and GBR objects.
- Regarding the analysis part, I discovered a wonderful article and related patch at this adress :
http://ftm.ircam.fr/index.php/Adaptive_segmentation
This work allowed me to create a residual by filtering the input sound samples through predefined expressions that operate on fmat objects.
- Regarding the resynthesis part however, I'm spending a lot of time to implement an expression which could achieve a recursive process, where the last p output samples are reinjected for AR convolution and sum with each residual input sample.
Has anyone already tried an LPC resynthesis process with FTM expressions ?
More generally, is it possible to build recursive filters with FTM/GBR objects ?
Any help would be appreciated,
Best regards,
Jojo