Initial commit

.gitignore

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+*.log
+.DS_Store
+.nyc_output
+coverage
+node_modules
+package-lock.json

.jshintrc

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+{
+  "esversion": 6,
+  "sub": true
+}

.npmignore

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+test
+.nyc_output
+.jshintrc
+.travis.yml
+appveyor.yml
+webpack.config.js

.travis.yml

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+language: node_js
+os:
+  - linux
+node_js:
+  - "7"
+  - "8"
+script:
+  - npm run build
+after_success:
+  - npm run coverage

LICENSE

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+Copyright (c) 2018 Rafael da Silva Rocha.
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

README.md

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+# frequency-sweep
+Sweep tone generator.  
+Copyright (c) 2018 Rafael da Silva Rocha.  
+https://github.com/rochars/frequency-sweep
+
+[![NPM version](https://img.shields.io/npm/v/frequency-sweep.svg?style=for-the-badge)](https://www.npmjs.com/package/frequency-sweep) [![Docs](https://img.shields.io/badge/docs-online-blue.svg?style=for-the-badge)](https://rochars.github.io/frequency-sweep/index.html)  
+[![Codecov](https://img.shields.io/codecov/c/github/rochars/frequency-sweep.svg?style=flat-square)](https://codecov.io/gh/rochars/frequency-sweep) [![Unix Build](https://img.shields.io/travis/rochars/frequency-sweep.svg?style=flat-square)](https://travis-ci.org/rochars/frequency-sweep) [![Windows Build](https://img.shields.io/appveyor/ci/rochars/frequency-sweep.svg?style=flat-square&logo=appveyor)](https://ci.appveyor.com/project/rochars/frequency-sweep) [![Scrutinizer](https://img.shields.io/scrutinizer/g/rochars/frequency-sweep.svg?style=flat-square&logo=scrutinizer)](https://scrutinizer-ci.com/g/rochars/frequency-sweep/)
+
+## Install
+```
+npm install frequency-sweep
+```
+
+## Use
+```javascript
+/**
+ * Return the samples of a frequency sweep. The sweep may be divided
+ * in segments, each using a different waveform (or noise), and each with
+ * a start and end frequency.
+ * @param {!Array<Object<!string, string|number>>} sequence The sequence.
+ *      Each item in the array must have the properties:
+ *          start: Integer value, the start frequency of the segment.
+ *          end: Integer value, the end frequency of the segment.
+ *          time: Float value, the duration of the segment. 1 = 1 second.
+            wave: String, "sine", "square", "triangle", "sawtooth" or "noise".
+ * @param {!number} sampleRate The sample rate.
+ * @return {!Array<number>}
+ */
+function sweep(sequence, sampleRate) {}
+```
+
+### Example
+```javascript
+// Define a sweep sequence.
+// This one have 2 steps, each using a different waveform.
+const sequence = [
+	{
+		"start": 1, // start in 1 Hz
+		"end": 100, // end in 100 Hz
+		"time": 1, // goes from 1 Hz to 100 Hz in 1 second
+		"wave": "sine" // use a sine wave
+	},
+	{
+		"start": 100, // start in 100 Hz
+		"end": 1400, // end in 1.4 kHz
+		"time": 5, // goes from 100 Hz to 1.4 kHz in 5 seconds
+		"wave": "sawtooth" // use a sawtooth wave
+	}
+];
+
+// Get the samples of the 2-step sweep sequence.
+// The samples are 64-bit and in the -1 to 1 range.
+let samples = sweep(sequence, 8000));
+```
+
+## LICENSE
+Copyright (c) 2018 Rafael da Silva Rocha.
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

appveyor.yml

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+environment:
+  matrix:
+    - nodejs_version: "7"
+    - nodejs_version: "8"
+
+install:
+  - ps: Install-Product node $env:nodejs_version
+  - npm -g install npm@latest
+  - npm install
+
+test_script:
+  - node --version
+  - npm --version
+  - cmd: npm run build
+
+build: off
+
+version: "{build}"
+
+matrix:
+  fast_finish: true

compile.js

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+/*
+ * Copyright (c) 2018 Rafael da Silva Rocha.
+ * https://github.com/rochars/frequency-sweep
+ *
+ */
+
+const sweep = require("./index.js");
+window['sweep'] = sweep;