[sdiy] Wavetable lengts during scan!

[Paul Maddox]

Karl,

>I wonder how long should a wavetable be to avoid
> the *gritting/grinding/stepping sound during adress
> scan trough the table?
>
> Im not talking about * jumps between complete waves
> as a method of scan, and there is no interpolation possible.
>
> The length i have at the moment is 127 stepps and its
> grinding.

I use 256 samples per wave on the monowave, ideally I'd go for 1024, but 
that takes a lot of space and *very* fast main oscillator :-)

When it comes to 'scnaning' through a table,
I'd use tables with lots of waves (I'd say 255 waves as a minimum)
and make sure you *ONLY* switch to the next wave at the zero crossing point 
(Waldorf Wave is the only wavetable synth I've heard that does this, and the 
effect when moving through a table is a *lot* smoother).

Paul