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index.html
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<!DOCTYPE html>
<!-- vim: set ts=4: -->
<html>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=0"/>
<meta name="apple-mobile-web-app-capable" content="yes">
<meta name="mobile-web-app-capable" content="yes">
<!--
Modified from original Node-Red source, for audio system visualization
Copyright 2013 IBM Corp.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<head>
<title>Audio System Design Tool for Teensy Audio Library</title>
<link href="bootstrap/css/bootstrap.min.css" rel="stylesheet" media="screen">
<link href="jquery/css/smoothness/jquery-ui-1.10.3.custom.min.css" rel="stylesheet" media="screen">
<link rel="stylesheet" type="text/css" href="orion/built-editor.css"/>
<link rel="stylesheet" type="text/css" href="font-awesome/css/font-awesome.min.css"/>
<link rel="stylesheet" href="style.css">
<style>
table.doc {border-spacing:3px; border-collapse:separate; font-size: 80%}
tr.top {background-color:#C0C0C0}
tr.odd {background-color:#F0F0F0}
tr.even {background-color:#E0E0E0}
p.func {padding-bottom:0; margin:0px}
p.desc {padding-left:2em; margin:0px; padding-top:0.2em; padding-bottom:0.8em; font-size:0.75em}
p.exam {padding-left:2em; text-indent:-1.2em; margin:0px; padding-top:0; padding-bottom:0.5em; font-size:0.75em; font-weight:bold}
pre.desc {padding-left:3em; margin:0px; padding-top:0em; padding-bottom:0.8em; font-size:0.75em;
background-color:#FFFFFF; border:0px; line-height:100%;
}
span.indent {padding-left:2em}
span.literal {color: #006699}
span.comment {color: #777755}
span.keyword {color: #cc6600}
span.function {color: #996600}
span.mainfunction {color: #993300; font-weight: bolder}
</style>
</head>
<body spellcheck="false">
<div class="navbar navbar-inverse navbar-fixed-top">
<div class="navbar-inner">
<div class="container-fluid">
<span class="brand">Audio System Design Tool for <a href="http://www.pjrc.com/teensy/td_libs_Audio.html" target="_blank">Teensy Audio Library</a></span>
<div class="btn-group pull-right">
<a class="btn dropdown-toggle" data-toggle="dropdown" href="#"><i class="icon-align-justify"></i> <span class="caret"></span></a>
<ul class="dropdown-menu">
<li><a id="btn-sidebar" tabindex="-1" href="#"><i class="icon-ok pull-right"></i><i class="icon-list-alt"></i> Sidebar</a></li>
<li class="divider"></li>
<!-- <li><a id="btn-node-status" tabindex="-1" href="#"><i class="icon-ok pull-right"></i><i class="icon-info-sign"></i> Node Status</a></li>
<li class="divider"></li>
-->
<!--
<li class="dropdown-submenu pull-left"><a tabindex="-1" href="#"><i class="icon-edit"></i> Import from...</a>
<ul class="dropdown-menu">
<li><a id="btn-import" tabindex="-1" href="#"><i class="icon-edit"></i> Clipboard...</a></li>
<li id="flow-menu-parent" class="dropdown-submenu pull-left">
<a tabindex="-1" href="#"><i class="icon-book"></i> Library</a>
<ul class="dropdown-menu"></ul>
</li>
</ul>
</li>
<li id="li-menu-export" class="dropdown-submenu disabled pull-left"><a tabindex="-1" href="#"><i class="icon-share"></i> Export to...</a>
<ul class="dropdown-menu">
<li id="li-menu-export-clipboard" class="disabled"><a id="btn-export-clipboard" tabindex="-1" href="#"><i class="icon-share"></i> Clipboard...</a></li>
<li id="li-menu-export-library" class="disabled"><a id="btn-export-library" tabindex="-1" href="#"><i class="icon-book"></i> Library...</a></li>
</ul>
</li>
<li class="divider"></li>
-->
<!--
<li><a id="btn-config-nodes" tabindex="-1" href="#"><i class="icon-th-list"></i> Configuration nodes...</a></li>
<li class="divider"></li>
-->
<!--
<li class="dropdown-submenu pull-left"><a tabindex="-1" href="#"><i class="icon-th-large"></i> Workspaces</a>
<ul id="workspace-menu-list" class="dropdown-menu">
<li><a id="btn-workspace-add" tabindex="-1" href="#"><i class="icon-plus"></i> Add</a></li>
<li><a id="btn-workspace-edit" tabindex="-1" href="#"><i class="icon-edit"></i> Rename</a></li>
<li><a id="btn-workspace-delete" tabindex="-1" href="#"><i class="icon-minus"></i> Delete</a></li>
<li class="divider"></li>
</ul>
</li>
<li class="divider"></li>-->
<li><a id="btn-keyboard-shortcuts" tabindex="-1" href="#"><i class="icon-question-sign"></i> Keyboard Shortcuts</a></li>
<li><a id="btn-help" tabindex="-1" href="http://node-red.github.io/docs" target="_blank"><i class="icon-question-sign"></i> Help...</a></li>
</ul>
</div>
<div class="btn-group pull-left">
<a id="btn-deploy" class="btn action-deploy disabled" href="#"><i id="btn-icn-deploy" class="icon-upload"></i>Export</a>
<a id="btn-import" class="btn action-import disabled" href="#"><i id="btn-icn-download" class="icon-download"></i>Import</a>
</div>
</div>
</div>
</div>
<div id="main-container" class="sidebar-closed">
<div id="palette">
<img src="img/spin.svg" class="palette-spinner"/>
<div id="palette-container" class="palette-scroll">
</div>
<div id="palette-search">
<i class="icon-search"></i><input id="palette-search-input" type="text" placeholder="filter"><a href="#" id="palette-search-clear"><i class="icon-remove"></i></a></input>
</div>
</div><!-- /palette -->
<div id="workspace">
<ul id="workspace-tabs"></ul>
<!--<div id="workspace-add-tab"><a id="btn-workspace-add-tab" href="#"><i class="icon-plus"></i></a></div>-->
<div id="chart"></div>
<div id="workspace-toolbar">
<div class="btn-group">
<a class="btn btn-small" href="#"><i class="icon-zoom-out"></i></a>
<a class="btn btn-small" href="#"><i class="icon-th"></i></a>
<a class="btn btn-small" href="#"><i class="icon-zoom-in"></i></a>
</div>
</div>
</div>
<div id="chart-zoom-controls">
<div class="btn-group">
<a class="btn btn-mini" id="btn-zoom-out" href="#"><i class="icon-zoom-out"></i></a>
<a class="btn btn-mini" id="btn-zoom-zero" href="#"><i class="icon-th"></i></a>
<a class="btn btn-mini" id="btn-zoom-in" href="#"><i class="icon-zoom-in"></i></a>
</div>
</div>
<div id="sidebar">
<ul id="sidebar-tabs"></ul>
<div id="sidebar-content"></div>
</div>
<div id="sidebar-separator"></div>
</div>
<div id="notifications"></div>
<div id="dropTarget"><div>Drop the flow here</div></div>
<div id="dialog" class="hide"><form id="dialog-form" class="form-horizontal"></form></div>
<div id="node-config-dialog" class="hide"><form id="dialog-config-form" class="form-horizontal"></form><div class="form-tips" id="node-config-dialog-user-count"></div></div>
<div id="node-dialog-confirm-deploy" class="hide">
<form class="form-horizontal">
<div id="node-dialog-confirm-deploy-config" style="text-align: center; padding-top: 30px;">
Some of the nodes are not properly configured. Are you sure you want to deploy?
</div>
<div id="node-dialog-confirm-deploy-unknown" style="text-align: center; padding-top: 10px;">
The workspace contains some unknown node types:
<ul style="width: 300px; margin: auto; text-align: left;" id="node-dialog-confirm-deploy-unknown-list"></ul>
Are you sure you want to deploy?
</div>
</form>
</div>
<div id="node-dialog-error-deploy" class="hide">
<form class="form-horizontal">
<div id="node-dialog-error-deploy-noio" style="text-align: center; padding-top: 10px;">
<p>The workspace contains no input/output nodes!</p>
<p>You need an input or an output to export the data!</p>
<p>Without such a input/output function the exported
code will not run properly!</p>
</div>
</form>
</div>
<div id="node-help" class="modal hide fade" tabindex="-1" role="dialog" aria-labelledby="node-help-label" aria-hidden="true">
<div class="modal-header">
<h5 id="node-help-label">Keyboard Shortcuts <span style="float: right;"><a href="http://node-red.github.io/docs" target="_blank">Open help in new window »</a></span></h5>
</div>
<div class="modal-body">
<table>
<tr>
<td><span class="help-key">?</span></td><td>Help</td>
<td><span class="help-key">Ctrl</span> <span class="help-key">a</span></td><td>Select all nodes</td>
</tr>
<tr>
<td><span class="help-key">Ctrl</span> <span class="help-key">Space</span></td><td>Toggle sidebar</td>
<td><span class="help-key">Shift</span> <span class="help-key">Click</span></td><td>Select all connected nodes</td>
</tr>
<tr>
<td><span class="help-key">Ctrl</span> <span class="help-key">z</span></td><td>Undo</td>
<td><span class="help-key">Ctrl</span> <span class="help-key">Click</span></td><td>Add/remove node from selection</td>
</tr>
<tr>
<td></td><td></td>
<td><span class="help-key">Delete</span></td><td>Delete selected nodes or link</td>
</tr>
<tr>
<td><span class="help-key">Ctrl</span> <span class="help-key">x</span></td><td>Cut selected nodes</td>
<td></td><td></td>
</tr>
<tr>
<td><span class="help-key">Ctrl</span> <span class="help-key">c</span></td><td>Copy selected nodes</td>
<td><span class="help-key">Ctrl</span> <span class="help-key">v</span></td><td>Paste nodes</td>
</tr>
<tr>
<td><span class="help-key">Ctrl</span> <span class="help-key">i</span></td><td>Import nodes</td>
<td><span class="help-key">Ctrl</span> <span class="help-key">e</span></td><td>Export selected nodes</td>
</tr>
<tr>
<td colspan="2"></td>
</tr>
<tr>
<td><span class="help-key">Ctrl</span> <span class="help-key">+</span></td><td>Zoom in</td>
<td><span class="help-key">Ctrl</span> <span class="help-key">-</span></td><td>Zoom out</td>
</tr>
</table>
</div>
<div class="modal-footer">
<button class="btn" data-dismiss="modal" aria-hidden="true">Close</button>
</div>
</div>
<div id="node-dialog-library-save-confirm" class="hide">
<form class="form-horizontal">
<div style="text-align: center; padding-top: 30px;">
A <span id="node-dialog-library-save-type"></span> called <span id="node-dialog-library-save-name"></span> already exists. Overwrite?
</div>
</form>
</div>
<div id="node-dialog-library-save" class="hide">
<form class="form-horizontal">
<div class="form-row">
<label for="node-dialog-library-save-folder"><i class="icon-folder-open"></i> Folder</label>
<input type="text" id="node-dialog-library-save-folder" placeholder="Folder">
</div>
<div class="form-row">
<label for="node-dialog-library-save-filename"><i class="icon-file"></i> Filename</label>
<input type="text" id="node-dialog-library-save-filename" placeholder="Filename">
</div>
</form>
</div>
<div id="node-dialog-library-lookup" class="hide">
<form class="form-horizontal">
<div class="form-row">
<ul id="node-dialog-library-breadcrumbs" class="breadcrumb">
<li class="active"><a href="#">Library</a></li>
</ul>
</div>
<div class="form-row">
<div style="vertical-align: top; display: inline-block; height: 100%; width: 30%; padding-right: 20px;">
<div id="node-select-library" style="border: 1px solid #999; width: 100%; height: 100%; overflow:scroll;"><ul></ul></div>
</div>
<div style="vertical-align: top; display: inline-block;width: 65%; height: 100%;">
<div style="height: 100%; width: 95%;" class="node-text-editor" id="node-select-library-text" ></div>
</div>
</div>
</form>
</div>
<div id="node-dialog-rename-workspace" class="hide">
<form class="form-horizontal">
<div class="form-row">
<label for="node-input-workspace-name" ><i class="icon-tag"></i> Name:</label>
<input type="text" id="node-input-workspace-name">
</div>
</form>
</div>
<div id="node-dialog-delete-workspace" class="hide">
<form class="form-horizontal">
<div style="text-align: center; padding-top: 30px;">
Are you sure you want to delete '<span id="node-dialog-delete-workspace-name"></span>'?
</div>
</form>
</div>
<script type="text/x-red" data-template-name="export-clipboard-dialog">
<div class="form-row">
<label for="node-input-export" style="display: block; width:100%;"><i class="icon-share"></i> Source Code:</label>
<textarea readonly style="font-family: monospace; font-size: 12px; background:rgb(226, 229, 255); padding-left: 0.5em;" class="input-block-level" id="node-input-export" rows="12"></textarea>
</div>
<div class="form-tips">
Select the text above and copy to the clipboard with Ctrl-A Ctrl-C.
</div>
</script>
<script type="text/x-red" data-template-name="export-library-dialog">
<div class="form-row">
<label for="node-input-filename" ><i class="icon-tag"></i> Filename:</label>
<input type="text" id="node-input-filename" placeholder="Filename">
</div>
</script>
<script type="text/x-red" data-template-name="import-dialog">
<div class="form-row">
<label for="node-input-import"><i class="icon-share"></i>Nodes:</label>
<textarea style="font-family: monospace; font-size: 12px; background:rgb(226, 229, 255); padding-left: 0.5em;" class="input-block-level" id="node-input-import" rows="5" placeholder="Paste nodes here, or lookup in the library. When importing Arduino code, the whole flow will be replaced."></textarea>
</div>
<div class="form-tips">
<label for="node-input-arduino" style="font-size: 13px; padding: 2px 0px 0px 4px;">
<input style="margin-bottom: 4px; margin-right: 4px;" type="checkbox" id="node-input-arduino" checked="checked" class="input-block-level" />
Import copied code from the Arduino IDE
</label>
</div>
</script>
<script src="jquery/js/jquery-1.9.1.js"></script>
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TODO: generate some or all of this automatically from the C++ source
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<script type="text/x-red" data-container-name="NodeDefinitions">
{"nodes":[
{"type":"AudioInputI2S","data":{"defaults":{"name":{"value":"new"}},"shortName":"i2s","inputs":0,"outputs":2,"category":"input-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioInputI2SQuad","data":{"defaults":{"name":{"value":"new"}},"shortName":"i2s_quad","inputs":0,"outputs":4,"category":"input-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioInputAnalog","data":{"defaults":{"name":{"value":"new"}},"shortName":"adc","inputs":0,"outputs":1,"category":"input-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioInputAnalogStereo","data":{"defaults":{"name":{"value":"new"}},"shortName":"adcs","inputs":0,"outputs":2,"category":"input-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioInputI2Sslave","data":{"defaults":{"name":{"value":"new"}},"shortName":"i2sslave","inputs":0,"outputs":2,"category":"input-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioInputPDM","data":{"defaults":{"name":{"value":"new"}},"shortName":"pdm","inputs":0,"outputs":1,"category":"input-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioInputTDM","data":{"defaults":{"name":{"value":"new"}},"shortName":"tdm","inputs":0,"outputs":16,"category":"input-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioInputUSB","data":{"defaults":{"name":{"value":"new"}},"shortName":"usb","inputs":0,"outputs":2,"category":"input-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioOutputI2S","data":{"defaults":{"name":{"value":"new"}},"shortName":"i2s","inputs":2,"outputs":0,"category":"output-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioOutputI2SQuad","data":{"defaults":{"name":{"value":"new"}},"shortName":"i2s_quad","inputs":4,"outputs":0,"category":"output-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioOutputSPDIF","data":{"defaults":{"name":{"value":"new"}},"shortName":"spdif","inputs":2,"outputs":0,"category":"output-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioOutputPT8211","data":{"defaults":{"name":{"value":"new"}},"shortName":"pt8211","inputs":2,"outputs":0,"category":"output-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioOutputAnalog","data":{"defaults":{"name":{"value":"new"}},"shortName":"dac","inputs":1,"outputs":0,"category":"output-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioOutputAnalogStereo","data":{"defaults":{"name":{"value":"new"}},"shortName":"dacs","inputs":2,"outputs":0,"category":"output-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioOutputPWM","data":{"defaults":{"name":{"value":"new"}},"shortName":"pwm","inputs":1,"outputs":0,"category":"output-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioOutputI2Sslave","data":{"defaults":{"name":{"value":"new"}},"shortName":"i2sslave","inputs":2,"outputs":0,"category":"output-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioOutputTDM","data":{"defaults":{"name":{"value":"new"}},"shortName":"tdm","inputs":16,"outputs":0,"category":"output-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioOutputADAT","data":{"defaults":{"name":{"value":"new"}},"shortName":"adat","inputs":8,"outputs":0,"category":"output-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioOutputUSB","data":{"defaults":{"name":{"value":"new"}},"shortName":"usb","inputs":2,"outputs":0,"category":"output-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioAmplifier","data":{"defaults":{"name":{"value":"new"}},"shortName":"amp","inputs":1,"outputs":1,"category":"mixer-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioMixer4","data":{"defaults":{"name":{"value":"new"}},"shortName":"mixer","inputs":4,"outputs":1,"category":"mixer-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioPlayMemory","data":{"defaults":{"name":{"value":"new"}},"shortName":"playMem","inputs":0,"outputs":1,"category":"play-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioPlaySdWav","data":{"defaults":{"name":{"value":"new"}},"shortName":"playSdWav","inputs":0,"outputs":2,"category":"play-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioPlaySdRaw","data":{"defaults":{"name":{"value":"new"}},"shortName":"playSdRaw","inputs":0,"outputs":1,"category":"play-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioPlaySerialflashRaw","data":{"defaults":{"name":{"value":"new"}},"shortName":"playFlashRaw","inputs":0,"outputs":1,"category":"play-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioPlayQueue","data":{"defaults":{"name":{"value":"new"}},"shortName":"queue","inputs":0,"outputs":1,"category":"play-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioRecordQueue","data":{"defaults":{"name":{"value":"new"}},"shortName":"queue","inputs":1,"outputs":0,"category":"record-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioSynthWavetable","data":{"defaults":{"name":{"value":"new"}},"shortName":"wavetable","inputs":0,"outputs":1,"category":"synth-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioSynthSimpleDrum","data":{"defaults":{"name":{"value":"new"}},"shortName":"drum","inputs":0,"outputs":1,"category":"synth-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioSynthKarplusStrong","data":{"defaults":{"name":{"value":"new"}},"shortName":"string","inputs":0,"outputs":1,"category":"synth-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioSynthWaveformSine","data":{"defaults":{"name":{"value":"new"}},"shortName":"sine","inputs":0,"outputs":1,"category":"synth-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioSynthWaveformSineHires","data":{"defaults":{"name":{"value":"new"}},"shortName":"sine_hires","inputs":0,"outputs":2,"category":"synth-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioSynthWaveformSineModulated","data":{"defaults":{"name":{"value":"new"}},"shortName":"sine_fm","inputs":1,"outputs":1,"category":"synth-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioSynthWaveform","data":{"defaults":{"name":{"value":"new"}},"shortName":"waveform","inputs":0,"outputs":1,"category":"synth-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioSynthWaveformModulated","data":{"defaults":{"name":{"value":"new"}},"shortName":"waveformMod","inputs":2,"outputs":1,"category":"synth-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioSynthWaveformPWM","data":{"defaults":{"name":{"value":"new"}},"shortName":"pwm","inputs":1,"outputs":1,"category":"synth-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioSynthToneSweep","data":{"defaults":{"name":{"value":"new"}},"shortName":"tonesweep","inputs":0,"outputs":1,"category":"synth-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioSynthWaveformDc","data":{"defaults":{"name":{"value":"new"}},"shortName":"dc","inputs":0,"outputs":1,"category":"synth-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioSynthNoiseWhite","data":{"defaults":{"name":{"value":"new"}},"shortName":"noise","inputs":0,"outputs":1,"category":"synth-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioSynthNoisePink","data":{"defaults":{"name":{"value":"new"}},"shortName":"pink","inputs":0,"outputs":1,"category":"synth-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioEffectFade","data":{"defaults":{"name":{"value":"new"}},"shortName":"fade","inputs":1,"outputs":1,"category":"effect-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioEffectChorus","data":{"defaults":{"name":{"value":"new"}},"shortName":"chorus","inputs":1,"outputs":1,"category":"effect-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioEffectFlange","data":{"defaults":{"name":{"value":"new"}},"shortName":"flange","inputs":1,"outputs":1,"category":"effect-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioEffectReverb","data":{"defaults":{"name":{"value":"new"}},"shortName":"reverb","inputs":1,"outputs":1,"category":"effect-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioEffectFreeverb","data":{"defaults":{"name":{"value":"new"}},"shortName":"freeverb","inputs":1,"outputs":1,"category":"effect-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioEffectFreeverbStereo","data":{"defaults":{"name":{"value":"new"}},"shortName":"freeverbs","inputs":1,"outputs":2,"category":"effect-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioEffectEnvelope","data":{"defaults":{"name":{"value":"new"}},"shortName":"envelope","inputs":1,"outputs":1,"category":"effect-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioEffectMultiply","data":{"defaults":{"name":{"value":"new"}},"shortName":"multiply","inputs":2,"outputs":1,"category":"effect-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioEffectDelay","data":{"defaults":{"name":{"value":"new"}},"shortName":"delay","inputs":1,"outputs":8,"category":"effect-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioEffectDelayExternal","data":{"defaults":{"name":{"value":"new"}},"shortName":"delayExt","inputs":1,"outputs":8,"category":"effect-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioEffectBitcrusher","data":{"shortName":"bitcrusher","inputs":1,"outputs":1,"category":"effect-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioEffectMidSide","data":{"shortName":"midside","inputs":2,"outputs":2,"category":"effect-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioEffectWaveshaper","data":{"shortName":"waveshape","inputs":1,"outputs":1,"category":"effect-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioEffectGranular","data":{"shortName":"granular","inputs":1,"outputs":1,"category":"effect-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioEffectDigitalCombine","data":{"shortName":"combine","inputs":2,"outputs":1,"category":"effect-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioFilterBiquad","data":{"defaults":{"name":{"value":"new"}},"shortName":"biquad","inputs":1,"outputs":1,"category":"filter-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioFilterFIR","data":{"defaults":{"name":{"value":"new"}},"shortName":"fir","inputs":1,"outputs":1,"category":"filter-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioFilterStateVariable","data":{"defaults":{"name":{"value":"new"}},"shortName":"filter","inputs":2,"outputs":3,"category":"filter-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioAnalyzePeak","data":{"defaults":{"name":{"value":"new"}},"shortName":"peak","inputs":1,"outputs":0,"category":"analyze-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioAnalyzeRMS","data":{"defaults":{"name":{"value":"new"}},"shortName":"rms","inputs":1,"outputs":0,"category":"analyze-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioAnalyzeFFT256","data":{"defaults":{"name":{"value":"new"}},"shortName":"fft256","inputs":1,"outputs":0,"category":"analyze-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioAnalyzeFFT1024","data":{"defaults":{"name":{"value":"new"}},"shortName":"fft1024","inputs":1,"outputs":0,"category":"analyze-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioAnalyzeToneDetect","data":{"defaults":{"name":{"value":"new"}},"shortName":"tone","inputs":1,"outputs":0,"category":"analyze-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioAnalyzeNoteFrequency","data":{"defaults":{"name":{"value":"new"}},"shortName":"notefreq","inputs":1,"outputs":0,"category":"analyze-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioAnalyzePrint","data":{"defaults":{"name":{"value":"new"}},"shortName":"print","inputs":1,"outputs":0,"category":"analyze-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioControlSGTL5000","data":{"defaults":{"name":{"value":"new"}},"shortName":"sgtl5000","inputs":0,"outputs":0,"category":"control-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioControlAK4558","data":{"defaults":{"name":{"value":"new"}},"shortName":"ak4558","inputs":0,"outputs":0,"category":"control-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioControlCS4272","data":{"defaults":{"name":{"value":"new"}},"shortName":"cs4272","inputs":0,"outputs":0,"category":"control-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioControlWM8731","data":{"defaults":{"name":{"value":"new"}},"shortName":"wm8731","inputs":0,"outputs":0,"category":"control-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioControlWM8731master","data":{"defaults":{"name":{"value":"new"}},"shortName":"wm8731m","inputs":0,"outputs":0,"category":"control-function","color":"#E6E0F8","icon":"arrow-in.png"}},
{"type":"AudioControlCS42448","data":{"defaults":{"name":{"value":"new"}},"shortName":"cs42448","inputs":0,"outputs":0,"category":"control-function","color":"#E6E0F8","icon":"arrow-in.png"}}
]}
</script>
<script type="text/x-red" data-help-name="AudioInputI2S">
<h3>Summary</h3>
<div class=tooltipinfo>
<p>Receive 16 bit stereo audio from the
<a href="http://www.pjrc.com/store/teensy3_audio.html" target="_blank">audio shield</a>
or another I2S device, using I2S master mode.</p>
<p align=center><img src="img/audioshield_inputs.jpg"></p>
</div>
<h3>Audio Connections</h3>
<table class=doc align=center cellpadding=3>
<tr class=top><th>Port</th><th>Purpose</th></tr>
<tr class=odd><td align=center>Out 0</td><td>Left Channel</td></tr>
<tr class=odd><td align=center>Out 1</td><td>Right Channel</td></tr>
</table>
<h3>Functions</h3>
<p>This object has no functions to call from the Arduino sketch. It
simply streams data from the I2S hardware to its 2 output ports.</p>
<h3>Hardware</h3>
<p align=center><img src="img/audioshield_backside.jpg"></p>
<p>The I2S signals are used in "master" mode, where Teensy creates
all 3 clock signals and controls all data timing.</p>
<table class=doc align=center cellpadding=3>
<tr class=top><th>Pin</th><th>Signal</th><th>Direction</th></tr>
<tr class=odd><td align=center>9</td><td>BCLK</td><td>Output</td></tr>
<tr class=odd><td align=center>11</td><td>MCLK</td><td>Output</td></tr>
<tr class=odd><td align=center>13</td><td>RX</td><td>Input</td></tr>
<tr class=odd><td align=center>23</td><td>LRCLK</td><td>Output</td></tr>
</table>
<p>Audio from
master mode I2S may be used in the same project as ADC, DAC and
PWM signals, because all remain in sync to Teensy's timing</p>
<p>Compatible CODEC Chips:
<ul>
<li><a href="https://www.pjrc.com/store/teensy3_audio.html">STGL5000</a>
<li><a href="https://forum.pjrc.com/threads/42665-New-Audio-Board!-TI-TLV320AIC3206">TLV320AIC3206</a>
<li><a href="https://forum.pjrc.com/threads/32276-HiFi-Audio-CODEC-Module-AK4558-evaluation-board-in-a-square-inch-PCB">AK4558</a>
</ul>
</p>
<p>Compatible ADC Chips:
<ul>
</ul>
</p>
<p>Compatible Microphones:
<ul>
<li><a href="https://forum.pjrc.com/threads/47010-I2S-Microphone-(SPH0645LM4H-B)?p=157101&viewfull=1#post157101">SPH0645LM4H-B</a>
<li><a href="https://forum.pjrc.com/threads/50534-Why-MEMS-i2s-microphone-ICS-43432-with-teensy-audio-library-not-working?p=173279&viewfull=1#post173279">ICS43432</a>
<li><a href="https://forum.pjrc.com/threads/49065-ICS43434-I2S-Digital-Microphone-and-Teensy-3-2">ICS43434</a>
</ul>
</p>
<h3>Examples</h3>
<p class=exam>File > Examples > Audio > HardwareTesting > PassThroughStereo
</p>
<p class=exam>File > Examples > Audio > Recorder
</p>
<p class=exam>File > Examples > Audio > Analysis > PeakMeterStereo
</p>
<p class=exam>File > Examples > Audio > Analysis > FFT
</p>
<p class=exam>File > Examples > Audio > Analysis > SpectrumAnalyzerBasic
</p>
<p class=exam>File > Examples > Audio > Effects > Chorus
</p>
<p class=exam>File > Examples > Audio > Effects > Flange
</p>
<p class=exam>File > Examples > Audio > Effects > Filter
</p>
<p class=exam>File > Examples > Audio > Effects > Filter_FIR
</p>
<h3>Notes</h3>
<p>Normally, this object is used with the Audio Shield, which
is controlled separately by the "sgtl5000" object.</p>
<p>Only one I2S input and one I2S output object may be used. Master
and slave modes may not be mixed (both must be of the same type).
</p>
<p>I2S master objects can be used together with non-I2S input and output
objects, for simultaneous audio streaming on different hardware.</p>
</script>
<script type="text/x-red" data-template-name="AudioInputI2S">
<div class="form-row">
<label for="node-input-name"><i class="fa fa-tag"></i> Name</label>
<input type="text" id="node-input-name" placeholder="Name">
</div>
</script>
<script type="text/x-red" data-help-name="AudioInputI2SQuad">
<h3>Summary</h3>
<div class=tooltipinfo>
<p>Receive 16 bit quad (4) channel audio from two
<a href="http://www.pjrc.com/store/teensy3_audio.html" target="_blank">audio shields</a>
or another I2S devices, using I2S master mode.</p>
<p align=center><img src="img/audioshield_quad_in.jpg"></p>
</div>
<h3>Audio Connections</h3>
<table class=doc align=center cellpadding=3>
<tr class=top><th>Port</th><th>Purpose</th></tr>
<tr class=odd><td align=center>Out 0</td><td>Channel #1</td></tr>
<tr class=odd><td align=center>Out 1</td><td>Channel #2</td></tr>
<tr class=odd><td align=center>Out 2</td><td>Channel #3</td></tr>
<tr class=odd><td align=center>Out 3</td><td>Channel #4</td></tr>
</table>
<h3>Functions</h3>
<p>This object has no functions to call from the Arduino sketch. It
simply streams data from the I2S hardware to its 4 output ports.</p>
<h3>Hardware</h3>
<p>See this Sparkfun blog for <a href="https://www.sparkfun.com/news/2055" target="_blank">how
to connect two audio adaptors for 4 channel audio</a>.
<p>The I2S signals are used in "master" mode, where Teensy creates
all 3 clock signals and controls all data timing.</p>
<table class=doc align=center cellpadding=3>
<tr class=top><th>Teensy<br>3.2 Pin</th><th>Teensy<br>3.5/3.6 Pin</th><th>Signal</th><th>Direction</th></tr>
<tr class=odd><td align=center>9</td><td align=center>9</td><td>BCLK</td><td>Output</td></tr>
<tr class=odd><td align=center>11</td><td align=center>11</td><td>MCLK</td><td>Output</td></tr>
<tr class=odd><td align=center>13</td><td align=center>13</td><td>RX</td><td>Input</td></tr>
<tr class=odd><td align=center>30</td><td align=center>38</td><td>RX</td><td>Input</td></tr>
<tr class=odd><td align=center>23</td><td align=center>23</td><td>LRCLK</td><td>Output</td></tr>
</table>
<p>Audio from
master mode I2S may be used in the same project as ADC, DAC and
PWM signals, because all remain in sync to Teensy's timing</p>
<h3>Examples</h3>
<p class=exam>File > Examples > Audio > HardwareTesting > PassThroughQuad
</p>
<h3>Notes</h3>
<p>Normally, this object is used with two Audio Shield, which
are controlled separately by a pair "sgtl5000" object.</p>
</script>
<script type="text/x-red" data-template-name="AudioInputI2SQuad">
<div class="form-row">
<label for="node-input-name"><i class="fa fa-tag"></i> Name</label>
<input type="text" id="node-input-name" placeholder="Name">
</div>
</script>
<script type="text/x-red" data-help-name="AudioInputAnalog">
<h3>Summary</h3>
<div class=tooltipinfo>
<p>Receive audio using the built-in analog to digital converter.</p>
</div>
<h3>Audio Connections</h3>
<table class=doc align=center cellpadding=3>
<tr class=top><th>Port</th><th>Purpose</th></tr>
<tr class=odd><td align=center>Out 0</td><td>Audio Channel</td></tr>
</table>
<h3>Functions</h3>
<p>This object has no functions to call from the Arduino sketch. It
simply streams data from the ADC to its output port.</p>
<h3>Hardware</h3>
<p>Pin A2 is used for audio input. This circuitry is recommended.</p>
<p align=center><img src="img/adccircuit.png"></p>
<p>Signal range is 0 to 1.2V</p>
<p>With a <a href="https://forum.pjrc.com/threads/40468-Help-with-Basic-Audio-Lib-results?p=126317&viewfull=1#post126317">small modification</a> Adafruit's <a href="https://www.adafruit.com/products/1063">MAX4466 microphone</a> can be used</p>
<p align=center><a href="https://forum.pjrc.com/threads/40468-Help-with-Basic-Audio-Lib-results?p=126317&viewfull=1#post126317"><img src="img/adccircuitmic.jpg" border=0></a></p>
<p>Control Voltage (CV) from +5V to -5V can be adapted with a
<a href="https://www.dorkbotpdx.org/blog/paul/control_voltage_cv_to_analog_input_pin">simple circuit</a>
or better <a href="https://forum.pjrc.com/threads/28423?p=71257&viewfull=1#post71257">opamp-based circuity</a>
to Teensy's 0-1.2V analog input range.</p>
<h3>Examples</h3>
<p class=exam>File > Examples > Audio > HardwareTesting > PassThroughMono
</p>
<p class=exam>File > Examples > Audio > Analysis > PeakMeterMono
</p>
<p class=exam>File > Examples > Audio > Analysis > DialTone_7segment
</p>
<p class=exam>File > Examples > OctoWS2811 > SpectrumAnalyzer
</p>
<h3>Notes</h3>
<p><b>analogRead() must not be used</b>, because AudioInputAnalog is regularly
accessing the ADC hardware. If both access the hardware at the same
moment, analogRead() can end up waiting forever, which effectively
crashes your program.
</p>
<p>A different pin may be used, but adding it as an parameter
to the AudioInputAnalog object definition.
</p>
<p>For example, to use pin A3:
</p>
<p class=desc><span class=keyword>AudioInputAnalog</span> adc1(<span class=literal>A3</span>);
</p>
<p>Noise due to high source impedance, which allows rapidly switching digital signals
to capacitively couple... avoiding higher analog impedance is the solution.</p>
<p>Power Supply rejection issue with simple DC bias (bigger capacitor may be needed if 3.3V has low frequency noise)</p>
<p>Algorithm for automatic DC bias tracking</p>
<p>TODO: actual noise measurements with different input circuitry
(it's not as quiet as the audio shield)</p>
</script>
<script type="text/x-red" data-template-name="AudioInputAnalog">
<div class="form-row">
<label for="node-input-name"><i class="fa fa-tag"></i> Name</label>
<input type="text" id="node-input-name" placeholder="Name">
</div>
</script>
<script type="text/x-red" data-help-name="AudioInputAnalogStereo">
<h3>Summary</h3>
<div class=tooltipinfo>
<p>Receive stereo audio using the built-in analog to digital converters.</p>
</div>
<h3>Audio Connections</h3>
<table class=doc align=center cellpadding=3>
<tr class=top><th>Port</th><th>Purpose</th></tr>
<tr class=odd><td align=center>Out 0</td><td>Audio Channel (Left)</td></tr>
<tr class=odd><td align=center>Out 1</td><td>Audio Channel (Right)</td></tr>
</table>
<h3>Functions</h3>
<p>This object has no functions to call from the Arduino sketch. It
simply streams data from both ADCs to its output ports.</p>
<h3>Hardware</h3>
<p>By default, pins A2 & A3 are used for audio input. This circuitry is recommended.</p>
<p align=center><img src="img/adccircuit2.png"></p>
<p>Signal range is 0 to 1.2V</p>
<p>Control Voltage (CV) from +5V to -5V can be adapted with a
<a href="https://www.dorkbotpdx.org/blog/paul/control_voltage_cv_to_analog_input_pin">simple circuit</a>
or better <a href="https://forum.pjrc.com/threads/28423?p=71257&viewfull=1#post71257">opamp-based circuity</a>
to Teensy's 0-1.2V analog input range.</p>
<h3>Examples</h3>
<!--
<p class=exam>File > Examples > Audio > HardwareTesting > PassThroughMono
</p>
<p class=exam>File > Examples > Audio > Analysis > PeakMeterMono
</p>
<p class=exam>File > Examples > Audio > Analysis > DialTone_7segment
</p>
<p class=exam>File > Examples > OctoWS2811 > SpectrumAnalyzer
</p>
-->
<h3>Notes</h3>
<p><b>analogRead() must not be used</b>, because AudioInputAnalogStereo is regularly
accessing the ADC hardware. If both access the hardware at the same
moment, analogRead() can end up waiting forever, which effectively
crashes your program.
</p>
<p>A different pin may be used, but adding it as an parameter
to the AudioInputAnalog object definition.
</p>
<p>For example:
</p>
<p class=desc><span class=keyword>AudioInputAnalogStereo</span> adc1(<span class=literal>A3</span>, <span class=literal>A2</span>);
</p>
<p>TODO: add info here about which pins work for input 0 and 1.
</p>
<p>Noise due to high source impedance, which allows rapidly switching digital signals
to capacitively couple... avoiding higher analog impedance is the solution.</p>
<p>Power Supply rejection issue with simple DC bias (bigger capacitor may be needed if 3.3V has low frequency noise)</p>
<p>Algorithm for automatic DC bias tracking</p>
<p>TODO: actual noise measurements with different input circuitry
(it's not as quiet as the audio shield)</p>
</script>
<script type="text/x-red" data-template-name="AudioInputAnalogStereo">
<div class="form-row">
<label for="node-input-name"><i class="fa fa-tag"></i> Name</label>
<input type="text" id="node-input-name" placeholder="Name">
</div>
</script>
<script type="text/x-red" data-help-name="AudioInputI2Sslave">
<h3>Summary</h3>
<div class=tooltipinfo>
<p>Receive 16 bit stereo audio from an I2S device using I2S slave mode
(where the ADC or codec chip, not Teensy, controls audio timing).</p>
</div>
<h3>Audio Connections</h3>
<table class=doc align=center cellpadding=3>
<tr class=top><th>Port</th><th>Purpose</th></tr>
<tr class=odd><td align=center>Out 0</td><td>Left Channel</td></tr>
<tr class=odd><td align=center>Out 1</td><td>Right Channel</td></tr>
</table>
<h3>Functions</h3>
<p>This object has no functions to call from the Arduino sketch. It
simply streams data from the I2S hardware to its 2 output ports.</p>
<h3>Hardware</h3>
<p>The I2S signals are used in "slave" mode, where the I2S device controls
data timing.</p>
<table class=doc align=center cellpadding=3>
<tr class=top><th>Pin</th><th>Signal</th><th>Direction</th></tr>
<tr class=odd><td align=center>9</td><td>BCLK</td><td>Input</td></tr>
<tr class=odd><td align=center>13</td><td>RX</td><td>Input</td></tr>
<tr class=odd><td align=center>23</td><td>LRCLK</td><td>Input</td></tr>
</table>
<!--
<h3>Examples</h3>
<p class=exam>File > Examples > Audio >
</p>
-->
<h3>Notes</h3>
<p>Slave mode I2S <b>should not used in the same project as ADC, DAC and
PWM</b> signals. Differences in timing between the I2S device and
Teensy's clock can cause occasional audio glitches when I2S slave mode
is used together with other input or output objects based on Teensy's
timing.</p>
<p>Only one I2S input and one I2S output object may be used. Master
and slave modes may not be mixed (both must be of the same type).
</p>
</script>
<script type="text/x-red" data-template-name="AudioInputI2Sslave">
<div class="form-row">
<label for="node-input-name"><i class="fa fa-tag"></i> Name</label>
<input type="text" id="node-input-name" placeholder="Name">
</div>
</script>
<script type="text/x-red" data-help-name="AudioInputTDM">
<h3>Summary</h3>
<div class=tooltipinfo>
<p>Receive a 256 bit Time Division Multiplexed frame containing
many audio channels.</p>
<p align=center><img src="img/tdm.jpg"></p>
</div>
<h3>Audio Connections</h3>
<table class=doc align=center cellpadding=3>
<tr class=top><th>Port</th><th>Purpose</th></tr>
<tr class=odd><td align=center>Out 0</td><td>Bits 0 to 15</td></tr>
<tr class=odd><td align=center>Out 1</td><td>Bits 16 to 31</td></tr>
<tr class=odd><td align=center>Out 2</td><td>Bits 32 to 47</td></tr>
<tr class=odd><td align=center>Out 3</td><td>Bits 48 to 63</td></tr>
<tr class=odd><td align=center>Out 4</td><td>Bits 64 to 79</td></tr>
<tr class=odd><td align=center>Out 5</td><td>Bits 80 to 95</td></tr>
<tr class=odd><td align=center>Out 6</td><td>Bits 96 to 111</td></tr>
<tr class=odd><td align=center>Out 7</td><td>Bits 112 to 127</td></tr>
<tr class=odd><td align=center>Out 8</td><td>Bits 128 to 143</td></tr>
<tr class=odd><td align=center>Out 9</td><td>Bits 144 to 159</td></tr>
<tr class=odd><td align=center>Out 10</td><td>Bits 160 to 175</td></tr>
<tr class=odd><td align=center>Out 11</td><td>Bits 176 to 191</td></tr>
<tr class=odd><td align=center>Out 12</td><td>Bits 192 to 207</td></tr>
<tr class=odd><td align=center>Out 13</td><td>Bits 208 to 223</td></tr>
<tr class=odd><td align=center>Out 14</td><td>Bits 224 to 239</td></tr>
<tr class=odd><td align=center>Out 15</td><td>Bits 240 to 255</td></tr>
</table>
<h3>Functions</h3>
<p>This object has no functions to call from the Arduino sketch. It
simply streams data from the TDM hardware to its 16 output ports.</p>
<h3>Hardware</h3>
<p>TDM has been tested with this <a href="https://oshpark.com/shared_projects/2Yj6rFaW">
CS42448 Circuit Board</a>. It may also work with
<a href="https://forum.pjrc.com/threads/42894">Invensense ICS-52000 microphones</a>.
</p>
<table class=doc align=center cellpadding=3>
<tr class=top><th>Pin</th><th>Signal</th><th>Direction</th></tr>
<tr class=odd><td align=center>9</td><td>BCLK</td><td>Output, 11.3 MHz</td></tr>
<tr class=odd><td align=center>11</td><td>MCLK</td><td>Output, 22.6 MHz</td></tr>
<tr class=odd><td align=center>13</td><td>RX</td><td>Input, 11.3 Mbit/sec</td></tr>
<tr class=odd><td align=center>23</td><td>FS</td><td>Output</td></tr>
</table>
<p>Audio from
master mode TDM may be used in the same project as ADC, DAC and
PWM signals, because all remain in sync to Teensy's timing</p>
<!--<h3>Examples</h3>-->
<h3>Notes</h3>
<p>Only one TDM input and one TDM output object may be used. The
I2S hardware is used by TDM, so TDM objects may not be used
together with I2S, SPDIF or PT8211.</p>
<p>When used with TDM devices which transmit 32 bit audio, the
even numbered channels will contain the useful upper 16
bits of audio data.</p>
<p>AudioMemory should be at least 16. Even if most channels are
unused, this TDM object will need to allocate 16 blocks of
memory.</p>
</script>
<script type="text/x-red" data-template-name="AudioInputTDM">
<div class="form-row">
<label for="node-input-name"><i class="fa fa-tag"></i> Name</label>
<input type="text" id="node-input-name" placeholder="Name">
</div>
</script>
<script type="text/x-red" data-help-name="AudioInputPDM">
<h3>Summary</h3>
<div class=tooltipinfo>
<p>Receive (and filter) a Pulse Density Modulated bitstream.
</p>
<p align=center><img src="img/pdmmic.jpg"><br><small>PDM MEMS Mic</small></p>
</div>
<h3>Audio Connections</h3>
<table class=doc align=center cellpadding=3>
<tr class=top><th>Port</th><th>Purpose</th></tr>
<tr class=odd><td align=center>Out 0</td><td>Filtered Audio Output</td></tr>
</table>
<h3>Functions</h3>
<p>This object has no functions to call from the Arduino sketch. It
simply streams data from the PDM data, filters out the high frequency
noise and gives you the audio signal.</p>
<h3>Hardware</h3>
<p>PDM has been tested with this <a href="https://www.adafruit.com/product/3492">
Adafruit MP34DT01-M Microphone Board</a>.
</p>
<table class=doc align=center cellpadding=3>
<tr class=top><th>Pin</th><th>Signal</th><th>Direction</th></tr>
<tr class=odd><td align=center>9</td><td>CLK</td><td>Output, 2.8235 MHz</td></tr>
<tr class=odd><td align=center>13</td><td>DATA</td><td>Input, Data on rising edge</td></tr>
</table>
<p>Data is input on the rising edge. The SEL pin on MP34DT01-M should be
connected LOW for proper data capture.</p>
<!--<h3>Examples</h3>-->
<h3>Notes</h3>
<p>Filtering consumes approximately 39% of the CPU when running at
96 MHz. The code currently consumes this time inside a high
priority interrupt, blocking other libraries. Perhaps future
versions will perform filtering at lower priority.
</p>
<p>The filter used is a 512 tap FIR with approx ±1.1 dB gain
flatness to 10 kHz. While far from audiophile grade, this should
perform far better than the rapid rolloff of Cascaded Integrator
Comb (CIC) or simple moving average filters commonly used on
other microcontrollers. The filter also consumes 2104 bytes of
RAM for buffering and 32K of Flash for a lookup table to optimized
the filter computation.
</p>
</script>
<script type="text/x-red" data-template-name="AudioInputPDM">
<div class="form-row">
<label for="node-input-name"><i class="fa fa-tag"></i> Name</label>
<input type="text" id="node-input-name" placeholder="Name">
</div>
</script>
<script type="text/x-red" data-help-name="AudioInputUSB">
<h3>Summary</h3>
<div class=tooltipinfo>
<p>Receive stereo audio from a PC or Mac. Teensy appears as a USB
sound device.</p>
<p align=center><img src="img/usbtype_audio_in.png"></p>
</div>
<h3>Audio Connections</h3>
<table class=doc align=center cellpadding=3>
<tr class=top><th>Port</th><th>Purpose</th></tr>
<tr class=odd><td align=center>Out 0</td><td>Left Channel</td></tr>
<tr class=odd><td align=center>Out 1</td><td>Right Channel</td></tr>
</table>
<h3>Functions</h3>
<p class=func><span class=keyword>volume</span>();</p>
<p class=desc>Returns the volume setting requested by the USB host.
Range is 0 to 1.0. To make the PC's volume control work, this
setting should be read periodically and used to control the
system processing the signal.
</p>
<!--
<h3>Hardware</h3>
-->
<h3>Examples</h3>
<p class=exam>File > Examples > Audio > HardwareTesting > PassThroughUSB</p>
</p>
<h3>Notes</h3>
<p>Arduino's <b>Tools > USB Type</b> menu must be set to <b>Audio</b>.
</p>
<p align=center><img src="img/usbtype_audio.png"></p>
<p>USB input & output does not cause the Teensy Audio Library to
update. At least one non-USB input or output object must be
present for the entire library to update properly.</p>
</script>
<script type="text/x-red" data-template-name="AudioInputUSB">
<div class="form-row">
<label for="node-input-name"><i class="fa fa-tag"></i> Name</label>
<input type="text" id="node-input-name" placeholder="Name">
</div>
</script>
<script type="text/x-red" data-help-name="AudioOutputI2S">
<h3>Summary</h3>
<div class=tooltipinfo>
<p>Transmit 16 bit stereo audio to the
<a href="http://www.pjrc.com/store/teensy3_audio.html" target="_blank">audio shield</a>
or another I2S device, using I2S master mode.</p>
<p align=center><img src="img/audioshield_outputs.jpg"></p>
</div>
<h3>Audio Connections</h3>
<table class=doc align=center cellpadding=3>
<tr class=top><th>Port</th><th>Purpose</th></tr>
<tr class=odd><td align=center>In 0</td><td>Left Channel</td></tr>
<tr class=odd><td align=center>In 1</td><td>Right Channel</td></tr>
</table>
<h3>Functions</h3>
<p>This object has no functions to call from the Arduino sketch. It
simply streams data from its 2 input ports to the I2S hardware.</p>
<h3>Hardware</h3>
<p align=center><img src="img/audioshield_backside.jpg"></p>
<p>The I2S signals are used in "master" mode, where Teensy creates
all 3 clock signals and controls all data timing.</p>
<table class=doc align=center cellpadding=3>
<tr class=top><th>Pin</th><th>Signal</th><th>Direction</th></tr>
<tr class=odd><td align=center>9</td><td>BCLK</td><td>Output</td></tr>
<tr class=odd><td align=center>11</td><td>MCLK</td><td>Output</td></tr>
<tr class=odd><td align=center>22</td><td>TX</td><td>Output</td></tr>
<tr class=odd><td align=center>23</td><td>LRCLK</td><td>Output</td></tr>
</table>
<p>Audio from
master mode I2S may be used in the same project as ADC, DAC and
PWM signals, because all remain in sync to Teensy's timing</p>
<p>Compatible CODEC Chips:
<ul>
<li><a href="https://www.pjrc.com/store/teensy3_audio.html">STGL5000</a>
<li><a href="https://forum.pjrc.com/threads/42665-New-Audio-Board!-TI-TLV320AIC3206">TLV320AIC3206</a>
<li><a href="https://forum.pjrc.com/threads/32276-HiFi-Audio-CODEC-Module-AK4558-evaluation-board-in-a-square-inch-PCB">AK4558</a>
</ul>
</p>
<p>Compatible DAC Chips:
<ul>
<li><a href="https://forum.pjrc.com/threads/53069-Teensy-with-PCM5102a-Module-via-I2S?p=183106&viewfull=1#post183106">PCM5102A</a>
<li><a href="https://forum.pjrc.com/threads/53069-Teensy-with-PCM5102a-Module-via-I2S?p=183176&viewfull=1#post183176">PCM1808</a>
<li><a href="https://forum.pjrc.com/threads/53069-Teensy-with-PCM5102a-Module-via-I2S?p=188244&viewfull=1#post188244">PCM5242</a>
<li><a href="https://forum.pjrc.com/threads/55137-I2S-output-with-CS4344?p=197919&viewfull=1#post197919">CS4344</a>
</ul>
</p>
<h3>Examples</h3>
<p>Nearly all the examples use this object. Here are some of the highlights:</p>
<p class=exam>File > Examples > Audio > HardwareTesting > PassThroughStereo
</p>
<p class=exam>File > Examples > Audio > SamplePlayer
</p>
<p class=exam>File > Examples > Audio > Recorder
</p>
<p class=exam>File > Examples > Audio > WavFilePlayer
</p>
<p class=exam>File > Examples > Audio > Effects > Chorus
</p>
<p class=exam>File > Examples > Audio > Synthesis > PlaySynthMusic
</p>
<h3>Notes</h3>
<p>Normally, this object is used with the Audio Shield, which
is controlled separately by the "sgtl5000" object.</p>
<p>Only one I2S input and one I2S output object may be used. Master
and slave modes may not be mixed (both must be of the same type).
</p>
</script>
<script type="text/x-red" data-template-name="AudioOutputI2S">
<div class="form-row">
<label for="node-input-name"><i class="fa fa-tag"></i> Name</label>
<input type="text" id="node-input-name" placeholder="Name">
</div>
</script>
<script type="text/x-red" data-help-name="AudioOutputI2SQuad">
<h3>Summary</h3>
<div class=tooltipinfo>
<p>Transmit quad (4) channel 16 bit audio, using I2S master mode.</p>
<p align=center><img src="img/audioshield_quad_out.jpg"></p>
</div>
<h3>Audio Connections</h3>
<table class=doc align=center cellpadding=3>
<tr class=top><th>Port</th><th>Purpose</th></tr>
<tr class=odd><td align=center>In 0</td><td>Channel #1</td></tr>
<tr class=odd><td align=center>In 1</td><td>Channel #2</td></tr>
<tr class=odd><td align=center>In 2</td><td>Channel #3</td></tr>
<tr class=odd><td align=center>In 3</td><td>Channel #4</td></tr>
</table>
<h3>Functions</h3>
<p>This object has no functions to call from the Arduino sketch. It
simply streams data from its 4 input ports to the I2S hardware.</p>
<h3>Hardware</h3>
<p>See this Sparkfun blog for <a href="https://www.sparkfun.com/news/2055" target="_blank">how
to connect two audio adaptors for 4 channel audio</a>. More
<a href="https://forum.pjrc.com/threads/29373-Bit-bang-multiple-I2S-inputs-simultaneously?p=79606#post79606" target="_blank">details</a> are also available.
<p>The I2S signals are used in "master" mode, where Teensy creates
all 3 clock signals and controls all data timing.</p>
<table class=doc align=center cellpadding=3>
<tr class=top><th>Pin</th><th>Signal</th><th>Direction</th></tr>
<tr class=odd><td align=center>9</td><td>BCLK</td><td>Output</td></tr>
<tr class=odd><td align=center>11</td><td>MCLK</td><td>Output</td></tr>
<tr class=odd><td align=center>22</td><td>TX (ch 1+2)</td><td>Output</td></tr>
<tr class=odd><td align=center>15</td><td>TX (ch 3+4)</td><td>Output</td></tr>
<tr class=odd><td align=center>23</td><td>LRCLK</td><td>Output</td></tr>
</table>
<p>Audio from
master mode I2S may be used in the same project as ADC, DAC and
PWM signals, because all remain in sync to Teensy's timing</p>
<h3>Examples</h3>
<p class=exam>File > Examples > Audio > HardwareTesting > PassThroughQuad
</p>
<p class=exam>File > Examples > Audio > HardwareTesting > SGTL5000 > QuadChannelOutput
</p>
<h3>Notes</h3>
<p>Normally, this object is used with two Audio Shields, which
are controlled separately by a pair of "sgtl5000" objects.</p>
</script>
<script type="text/x-red" data-template-name="AudioOutputI2SQuad">
<div class="form-row">
<label for="node-input-name"><i class="fa fa-tag"></i> Name</label>
<input type="text" id="node-input-name" placeholder="Name">
</div>
</script>