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Moved Filters to separate page and fixed comp

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This commit is contained in:
Miika Alonen
2023-12-11 00:07:05 +02:00
parent 9328a14de4
commit aef26b0811
10 changed files with 221 additions and 286 deletions
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43
src/documentation/learning/audio_engine/amplitude.ts
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@ -33,42 +33,43 @@ beat(.5)::snd('cp').vel($(1)%10 / 10).out()`,
| <ic>decay</ic> | dec | Decay value (time to decay to sustain level) |
| <ic>sustain</ic> | sus | Sustain value (gain when sound is held) |
| <ic>release</ic> | rel | Release value (time for the sound to die off) |
| <ic>adsr</ic> | | Shortcut that combines all the parameters together |
Note that the **sustain** value is not a duration but an amplitude value (how loud). The other values are the time for each stage to take place. Here is a fairly complete example using the <ic>sawtooth</ic> basic waveform.
${makeExample(
"Simple synthesizer",
`
let smooth = (sound) => {
return sound.cutoff(r(100,500))
.lpadsr(usaw(1/8) * 8, 0.05, .125, 0, 0)
.gain(r(0.25, 0.4)).adsr(0, r(.2,.4), r(0,0.5), 0)
.room(0.9).size(2).o(2).vib(r(2,8)).vibmod(0.125)
}
beat(.25)::smooth(sound('sawtooth')
.note([50,57,55,60].beat(1))).out();
beat(.25)::smooth(sound('sawtooth')
.note([50,57,55,60].add(12).beat(1.5))).out();
register("smooth", x => x.cutoff(r(100,500))
.lpadsr(usaw(1/8) * 8, 0.05, .125, 0, 0)
.gain(r(0.25, 0.4)).adsr(0, r(.2,.4), r(0,0.5), 0)
.room(0.9).size(2).o(2).vib(r(2,8)).vibmod(0.125))
beat(.25)::sound('sawtooth')
.note([50,57,55,60].beat(1))
.smooth().out();
beat(.25)::sound('sawtooth')
.note([50,57,55,60].add(12).beat(1.5))
.smooth().out();
`,
true,
)};
Sometimes, using a full ADSR envelope is a bit overkill. There are other simpler controls to manipulate the envelope like the <ic>.ad</ic> method:
${makeExample(
"Replacing .adsr by .ad",
`
let smooth = (sound) => {
return sound.cutoff(r(100,500))
.lpadsr(usaw(1/8) * 8, 0.05, .125, 0, 0)
.gain(r(0.25, 0.4)).ad(0, .25)
.room(0.9).size(2).o(2).vib(r(2,8)).vibmod(0.125)
}
beat(.25)::smooth(sound('sawtooth')
.note([50,57,55,60].beat(1))).out();
beat(.25)::smooth(sound('sawtooth')
.note([50,57,55,60].add(12).beat(1.5))).out();
register("smooth", x => x.cutoff(r(100,500))
.lpadsr(usaw(1/8) * 8, 0.05, .125, 0, 0)
.gain(r(0.25, 0.4)).ad(0, 0.25)
.room(0.9).size(2).o(2).vib(r(2,8)).vibmod(0.125))
beat(.25)::sound('sawtooth')
.note([50,57,55,60].beat(1))
.smooth().out();
beat(.25)::sound('sawtooth')
.note([50,57,55,60].add(12).beat(1.5))
.smooth().out();
`,
true,
)};