Solved
<
https://github.com/JeffreyBenjaminBrown/vivid/blob/jbb-update/learning/envelope.hs>
!
On Sat, Jul 7, 2018 at 6:43 PM Jeffrey Brown <jeffbrown.the_at_gmail.com>
wrote:
> This is awesome!
>
> What if the voice persisted and you needed to retrigger the envelope
> later? I'm imagining a resonating guitar string: It's continuously making
> sound, but every now and then the player strikes it again. Or someone
> playing monophonic slide violin: They might want to play an F# for a while,
> then slide into an A. Or a didgeridoo: The sound is in a steady state, then
> the player makes a "pew" noise, and then the didge settles back into
> another (usually the same) steady state.
>
> In the first case there's an amplitude envelope that's (probably) in its
> decay portion when it is retriggered. In the second there's a frequency
> envelope that's (probably) reached its sustain portion when it is
> retriggered to go to a new frequency.
>
> This might dovetail with an earlier question about sending strings to
> synths
> <https://we.lurk.org/hyperkitty/list/livecode_at_we.lurk.org/thread/6JD5SHXPQQ25VZH4PVKIR5Y7HEAPXZWL/>.
> The synth needs to react not to a parameter change that persists, but
> rather to a momentary instruction -- something like what the Max/MSP
> community calls a "bang".
>
> Actually in the slide violin case the synth would also receive a new
> frequency value. And I can imagine writing a synth that has a rule like
> "when the frequency changes, slide into it logarithmically over the course
> of 100 ms". So maybe you wouldn't need bang-like messages in some cases.
> But in the case of re-striking a resonating guitar string, or making a
> "pew" sound into a didge, it might be that none of the steady-state
> parameters needs changing; the envelope just needs to be re-triggered.
>
> Expressible?
>
> On Sat, Jul 7, 2018 at 12:36 AM <amindfv_at_gmail.com> wrote:
>
>> I unfortunately need to log out but here's something to get you started:
>>
>> foo = sd (1 :: I "gate") $ do
>> e <- adsrGen 0.2 0.1 0.6 0.7 (Curve_Curve (-4)) (gate_ (V::V "gate"))
>> s <- e ~* sinOsc (freq_ $ midiCPS 50)
>> out 0 [s,s]
>>
>> main = do
>> s <- synth foo ()
>> wait 1
>> release s
>>
>> El 6 jul 2018, a las 23:03, Jeffrey Brown <jeffbrown.the_at_gmail.com>
>> escribió:
>>
>> So far I'm able from Vivid to create continuously-running signal
>> architectures and change their parameters over time. Next I want to create
>> a "snare" (some noise with a brief amplitude envelope) and a "kick" (a sine
>> wave with a quickly descending frequency).
>>
>> Is there an idiom for that?
>>
>>
>> --
>> Jeff Brown | Jeffrey Benjamin Brown
>> Website <https://msu.edu/~brown202/> | Facebook
>> <https://www.facebook.com/mejeff.younotjeff> | LinkedIn
>> <https://www.linkedin.com/in/jeffreybenjaminbrown>(spammy, so I often
>> miss messages here) | Github
>> <https://github.com/jeffreybenjaminbrown>
>>
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>
>
> --
> Jeff Brown | Jeffrey Benjamin Brown
> Website <https://msu.edu/~brown202/> | Facebook
> <https://www.facebook.com/mejeff.younotjeff> | LinkedIn
> <https://www.linkedin.com/in/jeffreybenjaminbrown>(spammy, so I often
> miss messages here) | Github <https://github.com/jeffreybenjaminbrown>
>
>
--
Jeff Brown | Jeffrey Benjamin Brown
Website <https://msu.edu/~brown202/> | Facebook
<https://www.facebook.com/mejeff.younotjeff> | LinkedIn
<https://www.linkedin.com/in/jeffreybenjaminbrown>(spammy, so I often miss
messages here) | Github <https://github.com/jeffreybenjaminbrown>
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Received on Sun Jul 08 2018 - 04:15:53 BST