km is going negative, which is causing problems.
Try using this ftable instead

f1 0 4096 20 1

Victor

>
> I am having problems with getting it to do anything.  Can
> anyone explain the error in
> 
> 
> sr     = 44100
> ksmps  = 10
> nchnls = 1
>
> instr 4
>        km      oscil    1.1, 10, 1
>        asig    oscili   16000, 440, 1
>        fsig    pvsanal  asig,1024,256,1024,1
>        fs      pvscale  fsig, km
>        aclean  pvsynth  fs
>                out      aclean
> endin
> 
> 
> f1 0 4096 10 1
> i4 0 3
> e
> 
> 
>
> I expected a cosine wave with varying frequency but I get
> a warbling sound hardly related.  Over parameters have
> given noise bursts and other warbling stuff.
> ==John ffitch
>
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