Is LPC unsuitable to do the filtering ? 

http://www.csounds.com/manual/html/SpectralLpcresyn.html
http://www.csounds.com/manual/html/lpreson.html

I think the code has been on the blink recently, and only just 
repaired, but it can and has worked very well. 

Otherwise there is much capability amongst the basic PV 
opcodes, or the PVS streaming. 

http://www.csounds.com/manual/html/pvcross.html
http://www.csounds.com/manual/html/pvstencil.html

http://www.csounds.com/manual/html/pvsmaska.html
http://www.csounds.com/manual/html/pvsfilter.html


> hi all!
>
> For a project I need to do the following thing:
>
> extract the spectral envelope from a sound, and use this to filter
> another sound. In particular, I would like to know if it is possible to
> implement something on the line of pvsbandp but with an ftable instead
> of the four points given.
> Also experimenting with different algorithms for spectral envelope I
> found that the best/more natural results are achieved with AudioSculpt,
> with the option "true envelope". Does anyone know what kind of analysis
> that is, and if it is possible to do it on csound?
>
> thanks!!
>
> atir
>
>
> Send bugs reports to this list.
> To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe
> csound"