initial

.gitignore

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+node_modules

Makefile

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+
+example:
+	@./node_modules/.bin/watchify \
+		--global-transform [ babelify --presets [ latest ] ] \
+		--transform ./wav \
+		--verbose \
+		--standalone build \
+		--entry example/drumbeat.js \
+		--outfile example/build.js
+
+.PHONY: example

Readme.md

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+
+# wavepot-cli
+
+wavepot on the terminal
+
+`npm install wavepot -g`
+
+Make sure you have `electron` installed and in your path. If you don't, `npm install electron -g`
+
+## Usage
+
+`$ wavepot <sourcefile>`
+
+Where `<sourcefile>` is a file that contains something like this:
+
+```js
+exports.beep = t => .3 * Math.sin(t * 440 * Math.PI * 2);
+exports.noise = t => .15 * Math.random() * 2 - 1;
+```
+
+And then, try editing the file in your favorite editor. Any changes are reflected in realtime in the audio output.
+
+## Building modules
+
+`$ wavepot -b <sourcefile>`
+
+When you pass the option `--build` or `-b`, the file will be built with browserify and babelify. Babel latest preset is used so you can use imports and any new JavaScript features. An example can be found [here](example/drumbeat.js).
+
+If you're looking for filters, effects and generators to install and play with, check out [opendsp](https://github.com/opendsp). Then install with npm, github style: `npm install opendsp/some-module --save`.
+
+Enjoy!
+
+## License
+
+MIT &copy; [stagas](https://github.com/stagas)

bin/wavepot

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+#!/usr/bin/env electron
+
+var fs = require('fs');
+var path = require('path');
+var debounce = require('debounce');
+var browserify = require('browserify');
+var watchify = require('watchify');
+var babelify = require('babelify');
+var wav = require('../lib/wav');
+var concat = require('concat-stream');
+var electron = require('electron');
+var program = require('commander');
+
+program
+  .version('1.0.0')
+  .usage('[options] <sourcefile>')
+  .option('-b, --build', 'build with browserify')
+  .parse(process.argv);
+
+if (!program.args.length) program.help();
+
+var filename = path.resolve(program.args[0]);
+
+var BrowserWindow = electron.BrowserWindow;
+var app = electron.app;
+var win;
+
+console.log('sourcefile:', filename);
+
+var entry = path.resolve(path.join(__dirname, '..', 'index.html'));
+var updateSourceFile = debounce(() => win.webContents.send('sourcefile', filename), 10);
+
+app.on('ready', () => {
+  win = new BrowserWindow({ show: false });
+  win.loadURL('file://' + entry);
+  win.on('closed', () => win = null);
+  win.webContents.on('did-finish-load', () => {
+    if (!program.build) {
+      fs.watch(filename, updateSourceFile);
+      updateSourceFile();
+    } else {
+      console.log('building:', filename);
+
+      var b = browserify(filename, {
+        cache: {},
+        packageCache: {},
+        standalone: 'build'
+      });
+      b.plugin(watchify);
+      b.transform(babelify, { global: true, presets: ['latest'] });
+      b.transform(wav);
+
+      b.on('update', bundle);
+      b.on('error', err => console.error(err.stack));
+
+      bundle();
+
+      function bundle() {
+        b.bundle().pipe(concat(sendSource));
+      }
+
+      function sendSource(js) {
+        win.webContents.send('source', js);
+      }
+    }
+  });
+});

example/drumbeat.js

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+import note from 'note';
+import { tri } from 'osc';
+import envelope from 'envelope';
+import Sampler from 'sampler';
+
+import kick from './drumkit/BTAA0D3.WAV';
+import clap from './drumkit/HANDCLP1.WAV';
+import snare from './drumkit/ST0T0S7.WAV';
+import ohat from './drumkit/HHOD4.WAV';
+
+var drums = Sampler(12);
+drums.tune(1);
+drums.add('kick', kick);
+drums.add('clap', clap);
+drums.add('snare', snare);
+drums.add('ohat', ohat);
+
+// 111.9
+// 112.5
+// 120
+// 125
+// 126
+
+export let bpm = 125;
+
+var mul = 10e5;
+
+function step(t, sig) {
+  t = t * mul | 0;
+  sig = sig * mul | 0;
+  if (t % sig === 0) return t;
+}
+
+export function drumbeat(t){
+  if (step(t, 1/4)) drums.play('kick', .35, 0.923);
+  if (step(t+1/4+1/8, 1)) drums.play('clap', .15, 2);
+  if (step(t+2/4+1/6, 1)) drums.play('clap', .15, 1.7);
+  if (step(t+1/4, 1/2)) drums.play('snare', .15, 1);
+  if (step(t+1/8, 1/4)) drums.play('ohat', .045, 1.02);
+  return drums.mix();
+}
+
+var bass_seq = ['c3','f3','d#3','d3'].map(note).reverse();
+var bass_n = 0;
+
+export function bass(t){
+  if (step(t, 1/16)) bass_n++;
+  bass_n %= bass_seq.length;
+  return tri(t, bass_seq[bass_n]) * envelope(t, 1/8, 10, 4);
+}

example/drumkit/TR909SET.TXT

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+**************************************************************************
+**                                                                      **
+**                909909909   909909909   909909909                     **
+**  Roland        909   909   909   909   909   909                     **
+**                909   909   909   909   909   909      Copyright      **
+**      TR-       909909909   909   909   909909909         1995        **
+**                      909   909   909         909                     **
+**                      909   909   909         909       Rob Roy       **
+**                      909   909   909         909      Recordings     **
+**                      909   909909909         909                     **
+**                                                     Minneapolis, USA **
+**                     Rhythm Composer Samples                          **
+**                                                                      **
+**************************************************************************
+
+------------
+Introduction
+------------
+
+Since it's admittance into the world of music, the Roland TR-909 has been
+one of the most sought after drum machines in existence.  Every dance, 
+techno, and hip-hop artist desperately searches for the "magic box", only
+to find the 909.  Yet, this box is highly coveted by those who worship its
+demonic powers.  Many have tried to obtain this box through large sums of
+money, deceit, and ultimately theft. 
+
+In order to curve the population's insatiable thirst for the 909, I have
+created a 'complete' 909 sample set. I'll be surprised if you can tell the 
+difference.
+
+For purists, this sample set will not totally replace a real 909.  The 909 
+sequencer is really natural for many dance and hip-hop artists.  But
+in terms of sound quality, this set accurately reproduces the various
+instrument settings on the 909.  In other words, it is the next best 
+thing to a real 909.  How many drum machines in the store have a five meg
+909 sample set?
+
+I hope you find this set useful.  Please feel free to copy or distribute
+the set in any way.  Please DO NOT change samples, add samples,
+delete samples, or modify this text file in any way.  Respect the work. 
+This sample set is FREE.  You may not distribute these samples for
+profit!!   If you have any comments please feel free to email me.
+Or, if you create a cool tune using the samples feel free to send me a
+tape or dat.  Have fun!
+
+						-Rob Roy/ April 20 '95
+
+Jason Baker
+Rob Roy Recordings
+818 SE 8th Street #103
+Minneapolis, MN 55414  USA
+email: [email protected]
+web: T.B.A. soon!
+
+** Special thanks and greets to fEEd at MANNA STUDIOS, Minneapolis, for 
+   providing the TR-909. Check out Manna Studios at the following web
+   site: http://www.ivi.com/~robw 
+
+__________________________________________________________________________
+
+Sample set specifications:
+--------------------------
+
+160 Samples covering the full 909 kit
+	-24 bass drum
+	-52 snare drum
+	-16 low tom drum
+	-16 mid tom drum
+	-16 high tom drum
+	-2 rim shot
+	-2 hand clap
+	-6 high hat close
+	-6 high hat open
+	-6 crash cymbal
+	-6 rim cymbal
+	-4 open->close high hat combinations
+	-4 close->open high hat combinations
+
+Disk space requirement: approx. 4.8 megs unzipped
+
+__________________________________________________________________________
+Recording process:
+------------------
+
+All samples were recorded in mono at 44.1k using the following process:
+
+909 -------> EMU ESI-32 :::::::::::::> 486PC running Sound Forge 3.0
+     mono                sample dump
+
+The process maintained the greatest s/n ration by recording all 
+instruments at maximum level (except where noted).  All levels on the
+909 were kept at their highest setting.  The samples were normalized in
+Sound Forge 3.0.  The sounds were recorded completely dry.
+__________________________________________________________________________
+
+Sample Listing Notation
+-----------------------
+
+The 909 affords nearly an infinite number of instrument settings.  In 
+order to make the "infinite" possible, I used a standard system for
+recording each instrument's possible settings.  Each instrument setting
+knob on the 909 has 10 decants.  I chose to use the 0, 3, 7 and 10 
+settings on each knob to create most instrument variations.  The sample 
+listings use the letter "a" to represent 10 (think of 'a' as meaning
+'a'll the way).  The high hat and cymbal samples use settings of 0, 2, 4,
+6, 8, and 10 for the variations.  
+
+So, for example, when I recorded the bass drum I used the four chosen
+decants on three knob settings to create 24 bass drum variations.
+
+For the bass drum and snare drum I eliminated a few settings to reduce
+"sonic redundancy".  In the case of the bass drum I only used the
+0 and 10 ('a') settings on the attack.  For the snare drum I did not
+vary the tone control while the 'snappy' setting was at 0.
+
+After recording and normalizing each sample, I saved the samples in their
+respective instrument directories.  Each sample name is composed of an
+instrument letter, and knob settings specifications.  
+
+---------------------
+Sample Identification
+---------------------
+
+Instrument (first letter)       Settings (in order)             Directory
+
+b       bass drum               t=tune, a=attack, d=decay       \bassdm         
+s       snare drum              t=tune, t=tone, s=snappy        \snaredm
+l       low tom                 t=tune, d=decay                 \lowtomdm
+m       mid tom                 t=tune, d=decay                 \midtomdm
+h       high tom                t=tune, d=decay                 \hitomdm
+rim     rimshot                 #=velocity level                \rimshot
+hand    handclap                #=velocity level                \handclap
+hhc     closed high hat         d=decay                         \closedhh
+hho     open high hat           d=decay                         \openhh
+csh     crash cymbal            t=tune                          \crshcym
+ride    ride cymbal             t=tune                          \ridecym
+clop    closed->open hh         #=combination number            \misc
+opcl    open->closed hh         #=combination number            \misc
+
+The best way to figure out what sounds you need is to listen to a variety
+of samples.  Better yet, try to create your own personalized set of 909
+samples.
+
+Email me at: [email protected] if you have any questions!
+
+** 909KIT UPDATE 5/12/95
+
+I cleaned a bunch of sound file headers.  Apparently some .wav file have not
+been loading properly on systems.  The new headers contain the proper sound
+data information.  
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+

example/tone.js

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+exports.beep = t => .3 * Math.sin(t * 440 * Math.PI * 2);
+exports.noise = t => .15 * Math.random() * 2 - 1;

index.html

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+<!doctype html>
+<html>
+  <head>
+    <meta charset="utf-8">
+    <title>wavepot</title>
+  </head>
+  <body>
+    <script>require('./wavepot.js')</script>
+  </body>
+</html>

lib/wav.js

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+var extname = require('path').extname;
+var read = require('fs').readFileSync;
+var through = require('through2');
+
+module.exports = function (file) {
+  var ext = extname(file).toLowerCase();
+
+  return through(function (buf, enc, next) {
+    if (ext === '.wav') {
+      this.push('module.exports = new Buffer("'
+        + read(file).toString('base64')
+        + '", "base64").buffer;'
+      );
+    } else {
+      this.push(buf);
+    }
+    next();
+  });
+};