This might be getting a tad esotheric, but is there a would changing the
phase shift of the wave have an effect?
einhander
icq#21518714
On Sun, 16 Jul 2000, EggyToast wrote:
quoted 61 lines I am not a producer of music-however I am interested in learning about the
>
>
> > I am not a producer of music-however I am interested in learning about the
> > algorithms and wave formations(sinewave??) that people often talk about
> when
> > discussing the production of electronic music.
> >
> > I have printed out some stuff,but it is very confusing!
>
> This is a pretty common problem with any electronic thing, since most
> manuals and information is written in a way so that people who already konw
> what's going on will know what's going on. This, of course, it pretty much
> useless as far as the *actual processes*. It took me about 6th months to
> find out what cutoff actually was.
>
> anywho, common algorithms are as follows:
> sawtooth wave: this is above the "center line" in a wave, and pretty much
> looks like a basic sawtooth (straight up on one side, slanted going back to
> the middle, and then back up (or down, depending on the previous). it
> usually creates more of a buzz and very "acidic sounds." looks like
> |\|\|\|\ kinda
> square wave: this basically makes rectangles out of the soundwave. it looks
> like a series of vertical lines connected at the ends, and they're opposite
> the adjacent ones. looks kinda like |_|-|_| only with that middle line
> being at the top (instead of the middle). these tend to sound pretty
> smooth, and are usually smooth leads and pads, along with bass sounds that
> don't sound "acidic" (often confused with sine basses)
> triangle wave: it looks like \/\/\/\/\/\/ =) it sounds smoother than the
> sawtooth, but more jagged than the square. bass sounds are rumbly, and
> treble sounds tend to be squeakier (although they can all sound pretty
> squeaky with the right effects).
> sine wave: well it's a basic non-modulated wave. sounds very smooth, but
> is a pain to work with because there aren't many effects you can apply to a
> basic sine wave (usually just amplitude and frequency).
>
> i have no clue how the actual oscilators on synths or whatever work to
> create these, but these are the basic waveforms used by most synthesis. you
> can also mix these and get a really wide variety of waveforms, which
> probably explains a lot of the more complicated algorithms in "sound wave
> technology"
>
> they can all be modified by increasing/decreasing the amplitude (basically
> the loudness), and the frequency (how close the peaks/dips are to each
> other), which affects the pitch of the sound (if the "peaks" are more
> compact, the pitch is higher, and if the wave is more stretched out, then
> it's bassier). things like cutoff, delay, and other basic filters, simply
> modify those waveforms overall shape (delay will stretch it out more at the
> end, etc). in reality, all soundwaves are simply combinations of basic
> waveforms like this, just to an extremely complex degree, which is why some
> people claim to be able to make synths sound like real things (cos they *do*
> sound like real things, only simpler).
>
> well hopefully i answered some questions. =)
>
> -derek
>
>
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