The Logic Off Topic list

Good day every one.

I wonder, if someone could advise me of the different types of synthesis 
methods there are to produce DYNAMICALLY CHANGING Sound waves please.

I do hope someone can help.  Have a good day any way and keep smiling.

Love

Debbie debs xx


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>Good day every one.
>
>I wonder, if someone could advise me of the different types of synthesis
>methods there are to produce DYNAMICALLY CHANGING Sound waves please.

Just about as many as there are. The important thing is to have one or
more time varying control elements (ie envelope or knob tweak) applied
to to a filter in subtractive synthesis, or applied to a modulating oscillator
in FM, or a vector pointer in  'Vector synthesis' (a la Wavestation) and so
on..

In general, the more  synthesis parameters that change over time, the more
'dynamically changing'  the sound is likely to be. Very few sounds except
fixed waveforms aren't dynamically changing in some way. If this is too
obvious a response, you may need to rephrase your question...

S.

Hi S,

What does (a la Wavestation) mean is that the name for it in france or 
something. Please don't laugh. well i don't blame you.

And what did you mean by Very few sounds except fixed waveforms arent' 
dynamically chaning in some way.

So but a bit slow today. Brain not ticking so well. had one of those nights 
and having one of those days.

Chat soon.

D XX


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>Hi S,
>
>What does (a la Wavestation) mean is that the name for it in france or
>something. Please don't laugh. well i don't blame you.

Wavestation is an early (circa 1990) keyboard from Korg which enabled
the user to use a joystick to mix between waveforms to create 'dynamically
changing' sounds. (heheh)

>And what did you mean by Very few sounds except fixed waveforms arent'
>dynamically chaning in some way.

That is confusing. My fault. Better to say: Except for fixed repetitive
waveforms,  all other sounds are dynamically changing in some way...

In other words, except for a steady tone as would come from an oscillator
that repeats the same wave endlessly without change, most sounds have an
amplitude and harmonic envelope over time. For example, a piano note
tends to have a brighter attack when it is struck and gradually decreases
in volume and brightness, thus causing it to die awy. In this sense it
is dynamically changing. Perhaps not as dynamically changing as
some would like, or as you meant in your initial question, but it
still falls under that definition. That's why I initially suggested you
refine your question if you didn't get the answer you expected, as most
sounds fall into this category...

Sorry for the confusion.

>So but a bit slow today. Brain not ticking so well. had one of those nights
>and having one of those days.

I myself must retire now as I am getting there myself.

S.

Hi ya 

Wavestation is that Vector synthesis? 

Thank you for all your help.  Hope you have a relaxing evening.

Debbie x


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Yes it is VECTOR SYNTHESIS, just read the email again. Silly me.

Take care.

Debbie debs xx


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Thoughts from the mind of DbbBrook@..., 07-11-2001:

>I wonder, if someone could advise me of the different types of synthesis
>methods there are to produce DYNAMICALLY CHANGING Sound waves please.

Every synthesis method is capable of producing dynamically changing 
sounds.  As soon as there is e.g. an envelope generator present, or 
some other time dependent machinery, you got your dynamically 
changing sound.  This holds for all implementations of any kind of 
synthesis method, be it additive, subtractive, FM, granular, physical 
modelling, or whatever else.  No-one would buy a synth that produces 
only static sounds, I guess.

I suppose you meant to ask something else.  Please be a bit more 
specific in order to get more sensible answers...

cheers,
HJ
-- 
     Hendrik Jan Veenstra
     email: mailto:h@...
     www:   http://www.ision.nl/users/h/index.html

The wavestation also featured wave-sequencing, you can trigger different
waves after each other, so the sound "dynamically changing" hehee....

>> 
>> What does (a la Wavestation) mean is that the name for it in france or
>> something. Please don't laugh. well i don't blame you.
> 
> Wavestation is an early (circa 1990) keyboard from Korg which enabled
> the user to use a joystick to mix between waveforms to create 'dynamically
> changing' sounds. (heheh)
> 
>> And what did you mean by Very few sounds except fixed waveforms arent'
>> dynamically chaning in some way.
> 
> That is confusing. My fault. Better to say: Except for fixed repetitive
> waveforms,  all other sounds are dynamically changing in some way...