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effects chapter mostly finished
This commit is contained in:
Felix Roos
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@ -11,7 +11,9 @@ import Box from '@components/Box.astro';
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We have sounds, we have notes, now let's look at effects!
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**low-pass filter with lpf**
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## Some basic effects
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**low-pass filter**
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<MiniRepl
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hideHeader
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@ -22,12 +24,14 @@ We have sounds, we have notes, now let's look at effects!
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<Box>
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lpf = **l**ow **p**ass **f**ilter
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- Change lpf to 200. Notice how it gets muffled. Think of it as standing in front of the club with the door closed 🚪.
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- Now let's open the door... change it to 8000. Notice how it gets sharper 🪩
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- Now let's open the door... change it to 5000. Notice how it gets brighter ✨🪩
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</Box>
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**automate the filter**
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**pattern the filter**
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<MiniRepl
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hideHeader
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@ -41,6 +45,8 @@ We have sounds, we have notes, now let's look at effects!
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- Try adding more values
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- Notice how the pattern in lpf does not change the overall rhythm
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We will learn how to automate with waves later...
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</Box>
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**vowel**
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@ -52,13 +58,6 @@ We have sounds, we have notes, now let's look at effects!
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.sound("sawtooth").vowel("<a e i o>/2")`}
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/>
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<Box>
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- Try adding more values
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- Notice how the pattern in lpf does not change the overall rhythm
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</Box>
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**gain**
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<MiniRepl
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@ -66,15 +65,17 @@ We have sounds, we have notes, now let's look at effects!
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client:load
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tune={`stack(
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sound("hh*8").gain("[.25 1]*2"),
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sound("bd*2,~ rim")
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sound("bd*2,~ sd:1")
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) `}
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punchcard
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/>
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<Box>
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Rhythm is all about dynamics!
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Remove the gain and notice how flat it sounds.
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- Remove `.gain(...)` and notice how flat it sounds.
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- Bring it back by undoing (ctrl+z)
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</Box>
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@ -88,7 +89,7 @@ Let's combine all of the above into a little tune:
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tune={`stack(
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stack(
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sound("hh*8").gain("[.25 1]*2"),
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sound("bd*2,~ rim")
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sound("bd*2,~ sd:1")
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),
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note("<[c2 c3]*4 [bb1 bb2]*4 [f2 f3]*4 [eb2 eb3]*4>/2")
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.sound("sawtooth").lpf("200 1000"),
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@ -99,29 +100,11 @@ Let's combine all of the above into a little tune:
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<Box>
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Pay attention to where the commas are and identify the individual parts of the stacks.
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The 3 parts (drums, bassline, chords) are exactly as earlier, just stacked together.
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Try to identify the individual parts of the stacks, pay attention to where the commas are.
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The 3 parts (drums, bassline, chords) are exactly as earlier, just stacked together, separated by comma.
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</Box>
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**fast and slow**
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We can use `fast` and `slow` to change the tempo of a pattern outside of Mini-Notation:
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<MiniRepl hideHeader client:load tune={`sound("bd*2,~ rim").slow(2)`} />
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<Box>
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Change the `slow` value. Try replacing it with `fast`.
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What happens if you use a pattern like `"<1 [2 4]>"`?
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</Box>
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By the way, inside Mini-Notation, `fast` is `*` and slow is `/`.
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<MiniRepl hideHeader client:load tune={`sound("[bd*2,~ rim]*<1 [2 4]>")`} />
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**delay**
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<MiniRepl
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@ -144,7 +127,7 @@ What happens if you use `.delay(".8:.06:.8")` ? Can you guess what the third num
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</Box>
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**room**
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**room aka reverb**
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<MiniRepl
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hideHeader
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@ -169,36 +152,38 @@ Add a delay too!
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client:load
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tune={`stack(
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note("~ [<[d3,a3,f4]!2 [d3,bb3,g4]!2> ~]")
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.sound("gm_electric_guitar_muted"),
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sound("<bd rim>").bank("RolandTR707"),
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.sound("gm_electric_guitar_muted").delay(.5),
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sound("<bd rim>").bank("RolandTR707").delay(.5),
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n("<4 [3@3 4] [<2 0> ~@16] ~>/2")
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.scale("D4:minor").sound("gm_accordion:2")
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.room(2).gain(.5)
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).delay(.5)`}
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)`}
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/>
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**control the gain with a sine wave**
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<MiniRepl hideHeader client:load tune={`sound("hh*16").gain(sine)`} />
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Try also `saw`, `square`, `tri`
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**The 'structure' comes from the left - try swapping:**
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<MiniRepl hideHeader client:load tune={`vowel("a o").sound("drum")`} />
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**speed of playback, e.g. 2 = double speed (up 1 octave)**
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<MiniRepl hideHeader client:load tune={`speed("1 2 4").sound("jungbass:6")`} />
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Let's add a bass to make this complete:
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<MiniRepl
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hideHeader
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client:load
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tune={`sound("numbers:1 numbers:2 numbers:3 numbers:4")
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.speed("1 1.5 2 0.5")
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.slow(2)`}
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tune={`stack(
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note("~ [<[d3,a3,f4]!2 [d3,bb3,g4]!2> ~]")
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.sound("gm_electric_guitar_muted").delay(.5),
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sound("<bd rim>").bank("RolandTR707").delay(.5),
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n("<4 [3@3 4] [<2 0> ~@16] ~>/2")
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.scale("D4:minor").sound("gm_accordion:2")
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.room(2).gain(.4),
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n("<0 [~ 0] 4 [3 2] [0 ~] [0 ~] <0 2> ~>*2")
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.scale("D2:minor")
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.sound("sawtooth,triangle").lpf(800)
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)`}
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/>
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<Box>
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Try adding `.hush()` at the end of one of the patterns in the stack...
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</Box>
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**pan**
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<MiniRepl
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@ -209,12 +194,81 @@ Try also `saw`, `square`, `tri`
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.slow(2)`}
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/>
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<MiniRepl hideHeader client:load tune={`sound("drum*8").pan(sine)`} />
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**speed**
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**delay**
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<MiniRepl hideHeader client:load tune={`sound("bd rim").speed("<1 2 -1 -2>").room(.2)`} />
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<MiniRepl hideHeader client:load tune={`sound("bd sd").delay(".5:.1:.4")`} />
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**fast and slow**
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**room**
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We can use `fast` and `slow` to change the tempo of a pattern outside of Mini-Notation:
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<MiniRepl hideHeader client:load tune={`sound("bd sd").room(".5")`} />
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<MiniRepl hideHeader client:load tune={`sound("bd*2,~ rim").slow(2)`} />
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<Box>
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Change the `slow` value. Try replacing it with `fast`.
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What happens if you use a pattern like `.fast("<1 [2 4]>")`?
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</Box>
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By the way, inside Mini-Notation, `fast` is `*` and slow is `/`.
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<MiniRepl hideHeader client:load tune={`sound("[bd*2,~ rim]*<1 [2 4]>")`} />
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## automation with signals
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Instead of changing values stepwise, we can also control them with signals:
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<MiniRepl hideHeader client:load tune={`sound("hh*16").gain(sine)`} punchcard />
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<Box>
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The basic waveforms for signals are `sine`, `saw`, `square`, `tri` 🌊
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Try also random signals `rand` and `perlin`!
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The gain is visualized as transparency in the pianoroll.
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</Box>
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**setting a range**
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<MiniRepl hideHeader client:load tune={`sound("hh*8").lpf(saw.range(500, 2000))`} />
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<Box>
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What happens if you flip the range values?
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</Box>
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**setting a range**
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By default, waves oscillate between 0 to 1. We can change that with `range`:
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<MiniRepl
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hideHeader
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client:load
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tune={`note("<[c2 c3]*4 [bb1 bb2]*4 [f2 f3]*4 [eb2 eb3]*4>/2")
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.sound("sawtooth")
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.lpf(sine.range(100, 2000).slow(8))`}
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/>
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<Box>
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Notice how the wave is slowed down. The whole automation will take 8 cycles to repeat.
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</Box>
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## Recap
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| name | example |
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| ----- | ----------------------------------------------------------------------------------------------- |
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| lpf | <MiniRepl hideHeader client:load tune={`note("c2 c3").s("sawtooth").lpf("<400 2000>")`} /> |
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| vowel | <MiniRepl hideHeader client:load tune={`note("c3 eb3 g3").s("sawtooth").vowel("<a e i o>")`} /> |
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| gain | <MiniRepl hideHeader client:load tune={`s("hh*8").gain("[.25 1]*2")`} /> |
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| delay | <MiniRepl hideHeader client:load tune={`s("bd rim").delay(.5)`} /> |
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| room | <MiniRepl hideHeader client:load tune={`s("bd rim").room(.5)`} /> |
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| pan | <MiniRepl hideHeader client:load tune={`s("bd rim").pan("0 1")`} /> |
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| speed | <MiniRepl hideHeader client:load tune={`s("bd rim").speed("<1 2 -1 -2>")`} /> |
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| range | <MiniRepl hideHeader client:load tune={`s("hh*16").lpf(saw.range(200,4000))`} /> |
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