[sdiy] Polyphonic tonal disorder!

[Johannes Öberg]

If I understand your question:

If one is to believe the "Linear Arithmetic" hype of the D-50, the
human brain is the most sensitive to the attack transient of a sound.
So what matters is probably that you get phase cancelations in the
attack. Always restarting the phase of the oscillators when a new note
is struck should cure the problem. I guess in a way you could say this
is what a piano does.

Another thing is probably accumulative envelopes. I personally think
it sounds nice, but most people seem to not like it.

/Johannes

On 4/19/07, karl dalen <dalenkarl at yahoo.se> wrote:
> With the old polys some users complains about that the next note plated
> dont sound like the previous played, it depends on the poly alg used
> off course,whether its voice repeat or step trough all voices at each note
> etc.Users of the Andromeda complaints about this particularely when
> FM a filter from a VCO or VCO to VCO.I also remember DX7 users had some
> minor issues about phase cancellation who could silence a particular note
> down a bit.
>
> Also people of single oscillator polys almost never complaints about
> polyphonic tonal dissorder compared to 2 or more oscillator per voice polys.
> Perhaps because that its easier to hear the disorder of 2 oscillators
> for then same voice compared to the one oscillator based chord? No?
>
> For example i never had read anywhere that synths based on CEM3394 would have
> more of the disorder between notes in a chord then of lets say a JP8 or a P5?
>
> But isn't this actually a normal situation to have certain amount of polyphonic
> tonal disorder!?
>
> Take a piano, a single note consist of several strings there are all kinds of
> phase cancellations going during the time of the decay of the note played,or
> take a guitarist playing a chord the higher notes dampens out more rapid then
> the lower played in a chord. No?
>
> Why is it so that just because its a synth the variation of timbrality in
> a chord are seen as an abnormality? (Well if its to diverse its most likely.)
> Because its to exact in tone compared to mechanical instruments?
>
> What are *natural* sounding to a synth compared to whats defined as natural
> sounding in a mechanical instrument in terms of polyphonic tonal disorder!?
>
> Ideas folks?
>
> Reg
> KD
>
>
>
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