EXS 24 Logic Sampler Users Group

At 03:10 PM 12/10/02 +0000, you wrote: 

>
> ----- Original Message -----
> From: Murray McDowall <murraymc@...>
>
> > I understand that there is a simple (and very economical in terms of CPU)
> > method for getting 8 voices for unison mode -- RGC uses it in
> Pentagon/Zeta and
> > the increase in CPU consumption is surpisingly low for 8 voice unison
> mode -- I
> > wonder if Emagic know and use this method as I notice that they have also
> > chosen this magic number for unison mode.
>
> There is no unison mode in Pentagon/Z3ta+.  I have been lobbying for this
> and it is a possible future addition.  What they do have is 'Multi'
> oscillator algorithms which model 4 waveforms detuned per osc. 



Rene has told me directly that the algorithm he uses gives 8 "voices" for the
price (in CPU terms) of 1.5.

>
>   This is
> different to true unison mode which should be whole voices stacked and
> detuned.  The beauty of unison is that it can be applied to any existing
> patch, for example a synced osc patch, and the synced sound would get fatter
> depending on no. of voices and detune amount.   With the Pentagon/Z3ta+
> 'multi' method the synced oscillator would be replaced with the multi osc
> giving a totally different sound.
>
> I have to say that I find the exsII 'unison' mode disappointing,   It does
> sound to me like the 'multi' osc system described above.   At note on, all
> waves are in phase and then proceed to drift apart.   This give short notes
> a different sound to longer ones.  


What I was talking about was using the Random Detune while in unison mode --
the random detune seems to affect the added voices so that you get a much
larger  spread of tunings and a deep flanging effect on bass tones. 


>
>  I have a Korg Z1 and it has a great
> unison mode that properly detunes whole voices with no phase-synchronised
> note starts.



I would be interested to hear what that sounds like. I would guess that synth
generates its voices in dedicated hardware so CPU conservation is less of an
issue. 

Regards,
Murray