Hello All,
just another basic question.
These make all the same thing

 1
; local or global function table
if1 ftgenonce  0, 0, 512, 7, 0, 32, 1, 64, 0.3, 384, 0
kamp oscil1 0, p4, p3, if1

 2
iamp = p4
kamp linseg 0, p3*0.0625, 1, p3*0.125, 0.3, p3*0.75, 0
kamp = iamp*kamp

 3
kamp linseg 0, p3*0.0625, p4, p3*0.125, p4*0.3, p3*0.75, 0

Is one better than another (about memory or performance)?
I mean i like the 2 but it uses 2 variables instead of one (3).
Supposing a great number of instrument instances
the 3 would be better?

Thanks,
ciao,
francesco.





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It depends a lot on what you're using the envelope for. As you've
given them, I'd use 3. The advantage of 3 is the ability to change p4
in the score without messing with your instrument. In 1, GEN 7 uses
linear segments. You might consider GEN 5 (exponential segments).
Non-linear slopes are usually more expressive. You might also take a
look at transeg as a substitute for linseg. It gives you control over
the slope of the segments.

--David Mooney

On Wed, Oct 17, 2012 at 4:06 AM, francesco  wrote:
> Hello All,
> just another basic question.
> These make all the same thing
>
>  1
> ; local or global function table
> if1 ftgenonce  0, 0, 512, 7, 0, 32, 1, 64, 0.3, 384, 0
> kamp oscil1 0, p4, p3, if1
>
>  2
> iamp = p4
> kamp linseg 0, p3*0.0625, 1, p3*0.125, 0.3, p3*0.75, 0
> kamp = iamp*kamp
>
>  3
> kamp linseg 0, p3*0.0625, p4, p3*0.125, p4*0.3, p3*0.75, 0
>
> Is one better than another (about memory or performance)?
> I mean i like the 2 but it uses 2 variables instead of one (3).
> Supposing a great number of instrument instances
> the 3 would be better?
>
> Thanks,
> ciao,
> francesco.
>
>
>
>
>
> --
> View this message in context: http://csound.1045644.n5.nabble.com/basic-question-tp5716967.html
> Sent from the Csound - General mailing list archive at Nabble.com.
>
>
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