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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
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<html><!-- InstanceBegin template="/Templates/make/waveshield/ashield-use.dwt" codeOutsideHTMLIsLocked="false" -->
<head>
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<script type="text/javascript" src="/javascript/overlib.js"><!-- overLIB (c) Erik Bosrup --></script>
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<meta http-equiv="imagetoolbar" content="no" />
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<LINK REL=stylesheet HREF="/css/skeleton.css" TYPE="text/css">
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<title>Audio Shield for Arduino</title>
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</head>
<body>
<div id="overDiv" style="position:absolute; visibility:hidden; z-index:1000;"></div>
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<div class="topheader" ><img src="../../images/digg/topheaderbadge.png" width="171" height="190"></div>
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<span class="topheadertext"><!-- InstanceBeginEditable name="heading" -->Wave Shield<!-- InstanceEndEditable --></span>
<span class="topsubheadertext"><!-- InstanceBeginEditable name="Subheading" -->Examples<!-- InstanceEndEditable --></span>
<ul id="menu">
<li class="first"></li>
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<div id="lefttcol">
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</div>
<div id="content">
<!-- InstanceBeginRepeat name="texts" --><!-- InstanceBeginRepeatEntry -->
<div class="textblockheader"> <!-- InstanceBeginEditable name="Header" -->Getting Stack overflow errors?<!-- InstanceEndEditable --> </div>
<div class="textblock"> <!-- InstanceBeginEditable name="text" -->These examples are all designed for Arduino v10 so try to use that if possible<!-- InstanceEndEditable --> </div>
<!-- InstanceEndRepeatEntry --><!-- InstanceBeginRepeatEntry -->
<div class="textblockheader"> <!-- InstanceBeginEditable name="Header" -->Get more RAM &amp; Flash! <!-- InstanceEndEditable --> </div>
<div class="textblock"> <!-- InstanceBeginEditable name="text" -->
<p>Before you try to play audio, you'll want to free up some Arduino RAM, so that you don't end up with a nasty stack-overflow. </p>
<p><a href="http://www.ladyada.net/rant/2008/04/free-up-some-arduino-sram/">Follow these instructions</a> on how to get more RAM by reducing the input Serial library buffer. You dont need to do this if you're using an <a href="http://www.ladyada.net/library/arduino/upgrade.html">ATmega328</a></p>
<p>Note that the library is pretty big (about 10K) so if you want to do a lot more, I suggest <a href="http://www.ladyada.net/library/arduino/upgrade.html">upgrading to an ATmega328</a>. The shield was designed with the expectation that this part would be available.</p>
<!-- InstanceEndEditable --> </div>
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<div class="textblockheader"> <!-- InstanceBeginEditable name="Header" -->Generating speech<!-- InstanceEndEditable --> </div>
<div class="textblock"> <!-- InstanceBeginEditable name="text" -->
<p>If you want a human voice in your project, you can use the free generator at <a href="http://www.research.att.com/%7Ettsweb/tts/demo.php#top">AT&amp;T Text-to-Speech demo page </a></p>
<p>It will create a 16KHz, 16-bit audio file so you can use the audio 'right out of the box' </p>
<!-- InstanceEndEditable --> </div>
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<div class="textblockheader"> <!-- InstanceBeginEditable name="Header" -->Sound sample library<!-- InstanceEndEditable --> </div>
<div class="textblock"> <!-- InstanceBeginEditable name="text" --> <a href="http://wiki.laptop.org/go/Sound_samples">Here is huge collection of C.C. Attribution licensed sound samples!</a> A lot of it is already mono, 16 or 22KHz<!-- InstanceEndEditable --> </div>
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<div class="textblockheader"> <!-- InstanceBeginEditable name="Header" -->Digital audio player <!-- InstanceEndEditable --> </div>
<div class="textblock"> <!-- InstanceBeginEditable name="text" -->
<p>This is the simplest example. It plays every audio file it finds on the SD card in a loop.</p>
<ul>
<li><a href="../../media/wavshield/dap.pde">Sketch</a></li>
</ul>
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<div class="textblockheader"> <!-- InstanceBeginEditable name="Header" -->PI party! <!-- InstanceEndEditable --> </div>
<div class="textblock"> <!-- InstanceBeginEditable name="text" -->
<p>This example shows how to use the AT&amp;T text-to-speech website to speak the first 2640 digits of pi. The number is stored in flash, each digit is spoken one at a time. </p>
<ul>
<li><a href="../../media/wavshield/piwav.zip">Zip file containing the digits 0 thru 9 and 'point'</a> place the wave files onto the SD card </li>
<li><a href="../../media/wavshield/pispeak.pde">Sketch</a> </li>
</ul>
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<div class="textblockheader"> <!-- InstanceBeginEditable name="Header" -->Playing sound based on input<!-- InstanceEndEditable --> </div>
<div class="textblock"> <!-- InstanceBeginEditable name="text" -->
<p><a href="http://www.ladyada.net/forums/viewtopic.php?t=6120">This example</a> plays 6 different files depending on whether buttons connected to the 6 analog input pins are pressed.</p>
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<div class="textblockheader"> <!-- InstanceBeginEditable name="Header" -->Changing the playback rate<!-- InstanceEndEditable --> </div>
<div class="textblock"> <!-- InstanceBeginEditable name="text" -->
<p>By messing with the playback interrupt, <a href="http://www.ladyada.net/rant/2008/05/wave-shield-bending-the-playback-sample-rate/">you can change the speed of playback for an interesting effect.</a></p>
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<div class="textblockheader"> <!-- InstanceBeginEditable name="Header" -->Halloween pumpkin<!-- InstanceEndEditable --> </div>
<div class="textblock"> <!-- InstanceBeginEditable name="text" --><a href="../pumpkin/pumpkin.html">An example of using a sensor to trigger sounds, as well as animating LEDs based on the volume</a><!-- InstanceEndEditable --> </div>
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<div id="rightcol">
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<div id="history">
<!-- #BeginDate format:Am1m -->November 2, 2008 18:16<!-- #EndDate --></div>
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