Casio CZ/ VZ/ FZ - Pro Series

>It sounds to me as if the machine isn't starting the waveform from a
>zero point. Even if i use an initialized patch with only one
>line/module then the sinewave has a click on the front end.

I just checked my VZ init patch by recording it into soundforge.  There is a 
perceived sort of click sound, but the waveform does start at zero.  You 
could check yours similarly..

>Slowing
>the attack down just makes the click slightly quieter but only cuts
>it out completely when the attack is so slow its unusable for bass
>sounds etc.
>The same problem is apparent on a lot of the preset sounds (the harp
>sound clicks so much it would be impossible to ever use) but not all
of them.
>Anyone got any idea what could be going on?

You could try using 2 envelope stages for the attack to change the shape of 
it slightly.  I haven't tried this, but making stage 1 faster or slower than 
stage 2 might help, and messing with the level for stage 1 (though too high 
will give the same effect as just using stage 1 for the attack phase, and 
too low will just delay the note- maybe ~70 would be a good place to 
start?)..

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