Merge pull request #411 from tidalcycles/docs

improve samples doc

packages/core/controls.mjs

@@ -798,6 +798,16 @@ const generic_params = [
   ['f', 'uid', ''],
   ['f', 'val', ''],
   ['f', 'cps', ''],
+  /**
+   * If set to 1, samples will be cut to the duration of their event.
+   * In tidal, this would be done with legato, which [is about to land in strudel too](https://github.com/tidalcycles/strudel/issues/111)
+   *
+   * @name clip
+   * @param {number | Pattern} active 1 or 0
+   * @example
+   * note("c a f e ~").s("piano").clip(1)
+   *
+   */
   ['f', 'clip', ''],
 ];
 

test/__snapshots__/examples.test.mjs.snap

@@ -1060,6 +1060,27 @@ exports[`runs examples > example "chunkBack" example index 0 1`] = `
 ]
 `;
 
+exports[`runs examples > example "clip" example index 0 1`] = `
+[
+  "[ 0/1 → 1/5 | note:c s:piano clip:1 ]",
+  "[ 1/5 → 2/5 | note:a s:piano clip:1 ]",
+  "[ 2/5 → 3/5 | note:f s:piano clip:1 ]",
+  "[ 3/5 → 4/5 | note:e s:piano clip:1 ]",
+  "[ 1/1 → 6/5 | note:c s:piano clip:1 ]",
+  "[ 6/5 → 7/5 | note:a s:piano clip:1 ]",
+  "[ 7/5 → 8/5 | note:f s:piano clip:1 ]",
+  "[ 8/5 → 9/5 | note:e s:piano clip:1 ]",
+  "[ 2/1 → 11/5 | note:c s:piano clip:1 ]",
+  "[ 11/5 → 12/5 | note:a s:piano clip:1 ]",
+  "[ 12/5 → 13/5 | note:f s:piano clip:1 ]",
+  "[ 13/5 → 14/5 | note:e s:piano clip:1 ]",
+  "[ 3/1 → 16/5 | note:c s:piano clip:1 ]",
+  "[ 16/5 → 17/5 | note:a s:piano clip:1 ]",
+  "[ 17/5 → 18/5 | note:f s:piano clip:1 ]",
+  "[ 18/5 → 19/5 | note:e s:piano clip:1 ]",
+]
+`;
+
 exports[`runs examples > example "coarse" example index 0 1`] = `
 [
   "[ 0/1 → 1/2 | s:bd coarse:1 ]",

website/src/pages/learn/samples.mdx

@@ -9,16 +9,90 @@ import { JsDoc } from '../../docs/JsDoc';
 
 # Samples
 
-# Default Sample Map
+Samples are the most common way to make sound with tidal and strudel.
+A sample is a (commonly short) piece of audio that is used as a basis for sound generation, undergoing various transformations.
+Music that is based on samples can be thought of as a collage of sound. [Read more about Sampling](<https://en.wikipedia.org/wiki/Sampling_(music)>)
 
-As we have seen, `s` can play back audio samples:
+Strudel allows loading samples in the form of audio files of various formats (wav, mp3, ogg) from any publicly available URL.
 
-<MiniRepl client:idle client:idle tune={`s("bd sd,hh*8,misc/2")`} />
+# Default Samples
 
-These sounds come from Strudel's in-built default "sample map".
+By default, strudel comes with a built-in "sample map", providing a solid base to play with.
-To know which sounds are available, open the [default sample map](https://strudel.tidalcycles.org/EmuSP12.json).
 
-# Custom Sample Maps
+<MiniRepl client:idle tune={`s("bd sd,hh*8, misc/2")`} />
+
+Here, we are using the `s` function to play back different default samples (`bd`, `sd`, `hh` and `misc`) to get a drum beat.
+
+For drum sounds, strudel uses the comprehensive [tidal-drum-machines](https://github.com/ritchse/tidal-drum-machines) library, with the following naming convention:
+
+| Drum                                | Abbreviation |
+| ----------------------------------- | ------------ |
+| Bass drum, Kick drum                | bd           |
+| Snare drum                          | sd           |
+| Rimshot                             | rim          |
+| Clap                                | cp           |
+| Closed hi-hat                       | hh           |
+| Open hi-hat                         | oh           |
+| Crash                               | cr           |
+| Ride                                | rd           |
+| Shakers (and maracas, cabasas, etc) | sh           |
+| High tom                            | ht           |
+| Medium tom                          | mt           |
+| Low tom                             | lt           |
+| Cowbell                             | cb           |
+| Tambourine                          | tb           |
+| Other percussions                   | perc         |
+| Miscellaneous samples               | misc         |
+| Effects                             | fx           |
+
+Furthermore, strudel also loads instrument samples from [VCSL](https://github.com/sgossner/VCSL) by default.
+
+To see which sample names are available, open the `samples` tab in the [REPL](https://strudel.tidalcycles.org/).
+
+Note that only the sample maps (mapping names to URLs) are loaded initially, while the audio samples itself are not loaded until they are actually played.
+This behaviour of loading things only when they are needed is also called `lazy loading`.
+While it saves resources, it can also lead to sounds not being audible the first time they are triggered, because the sound is still loading.
+[This might be fixed in the future](https://github.com/tidalcycles/strudel/issues/187)
+
+# Sound Banks
+
+If we look at the `samples` tab, we can see that the drum samples are all prefixed with drum machine names: `RolandTR808_bd`, `RolandTR808_sd`, `RolandTR808_hh` etc..
+
+We _could_ use them like this:
+
+<MiniRepl client:idle tune={`s("RolandTR808_bd RolandTR808_sd,RolandTR808_hh*8")`} />
+
+... but thats obviously a bit much to write. Using the `bank` function, we can shorten this to:
+
+<MiniRepl client:idle tune={`s("bd sd,hh*8").bank("RolandTR808")`} />
+
+You could even pattern the bank to switch between different drum machines:
+
+<MiniRepl client:idle tune={`s("bd sd,hh*8").bank("<RolandTR808 RolandTR909>")`} />
+
+Behind the scenes, `bank` will just prepend the drum machine name to the sample name with `_` to get the full name.
+This of course only works because the name after `_` (`bd`, `sd` etc..) is standardized.
+Also note that some banks won't have samples for all sounds!
+
+# Selecting Sounds
+
+If we look again at the `samples` tab, there is also a number behind each name, indicating how many individual samples are available.
+For example `RolandTR909_hh(4)` means there are 4 samples of a TR909 hihat available.
+By default, `s` will play the first sample, but we can selecting the other ones using `n`, starting from 0:
+
+<MiniRepl client:idle tune={`s("hh*4").bank("RolandTR909").n("<0 1 2 3>")`} />
+
+Numbers that are too high will just wrap around to the beginning
+
+<MiniRepl client:idle tune={`s("hh*4").bank("RolandTR909").n("<0 1 2 3 4 5 6 7>")`} />
+
+Here, 0-3 will play the same sounds as 4-7, because `RolandTR909_hh` only has 4 sounds.
+
+Selecting sounds also works inside the mini notation, using "`:`" like this:
+
+<MiniRepl client:idle tune={`s("bd:1 bd:2,hh:0 hh:1 hh:2 hh:3").bank("RolandTR909")`} />
+
+# Loading Custom Samples
 
 You can load your own sample map using the `samples` function.
 In this example we create a map using sounds from the default sample map:
@@ -48,7 +122,7 @@ s("bassdrum snaredrum, hihat*8")`}
 
 Here we have changed the "map" to include longer sample names.
 
-# Loading Custom Samples
+## The `samples` function
 
 The `samples` function has two arguments:
 
@@ -87,7 +161,7 @@ We can see there are some guitar samples inside the `/samples` folder, so let's
 s("[g0 g1 g2 g3 g4]/5")`}
 />
 
-# Loading Multiple Samples per Sound
+## Multiple Samples per Sound
 
 It is also possible, to declare multiple files for one sound, using the array notation:
 
@@ -146,7 +220,7 @@ And as above, we can choose the sample number using `n` for even more flexibilit
 n("<0 1 2 3 4>").s("guitar")`}
 />
 
-# Pitched Sounds
+## Pitched Sounds
 
 For pitched sounds, you can use `note`, just like with synths:
 
@@ -170,7 +244,7 @@ note("g3 [bb3 c4] <g4 f4 eb4 f3>@2").s('gtr').clip(1)
   .gain(.5)`}
 />
 
-# Base Pitch
+## Base Pitch
 
 If we have 2 samples with different base pitches, we can make them in tune by specifying the pitch like this:
 
@@ -203,7 +277,7 @@ note("g2!2 <bb2 c3>!2, <c4@3 [<eb4 bb3> g4 f4]>")
 
 The sampler will always pick the closest matching sample for the current note!
 
-# Shabda
+## Shabda
 
 If you don't want to select samples by hand, there is also the wonderful tool called [shabda](https://shabda.ndre.gr/).
 With it, you can enter any sample name(s) to query from [freesound.org](https://freesound.org/). Example:
@@ -220,30 +294,32 @@ stack(
 
 # Sampler Effects
 
-Below are four different examples of sampler "effects" which are functions that can be used to change the behaviour of sample playback.
+Sampler effects are functions that can be used to change the behaviour of sample playback.
-Note that most of what you've learned already about Tidal mini-notation can be used with these functions too.
-Almost everything in Tidal can be patterned using strings!
 
-### `begin`
+### begin
 
 <JsDoc client:idle name="Pattern.begin" h={0} />
 
-### `end`
+### end
 
 <JsDoc client:idle name="Pattern.end" h={0} />
 
-### `cut`
+### cut
 
 <JsDoc client:idle name="cut" h={0} />
 
-### `loopAt`
+### clip
+
+<JsDoc client:idle name="clip" h={0} />
+
+### loopAt
 
 <JsDoc client:idle name="Pattern.loopAt" h={0} />
 
-### `chop`
+### chop
 
 <JsDoc client:idle name="Pattern.chop" h={0} />
 
-### `speed`
+### speed
 
 <JsDoc client:idle name="speed" h={0} />