[sdiy] Additive Synthesis - phase shifts important??

[cheater cheater]

Antti, I have found that shifting the phase by o^m * Pi/n where m,n
are arbitrary and o is the order of the harmonic (fractions for
inharmonics) can be very interesting.
This is especially true for tones of high harmonicity.
I think the fact that the wave will behave very differently in later
processing is a 'hidden power' of this.

D.

On 7/16/08, Antti Huovilainen <ajhuovil at cc.hut.fi> wrote:
> On Mon, 14 Jul 2008, Florian E. Teply wrote:
>
>
> > Hiho SDIYers,
> >
> > currently i'm fiddling with the thought of some additive synthesis based
> on DDS. Now i'm wondering if a phase shift of some harmonics would alter the
> sound.
> >
>
>  Yes, but not that much. Some tests I did a year or two ago indicated that
> the difference was only major for very edgy waveforms and even then the only
> real difference was between the original edgy waveform and any phase
> randomized one (phase randomized with different phases all sounded pretty
> much the same).
>
>  Controlling the general inharmonicity and amplitude envelope of individual
> harmonics is much more useful.
>
>  Antti
>
>  "No boom today. Boom tomorrow. There's always a boom tomorrow"
>   -- Lt. Cmdr. Ivanova
>
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