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这个程序展示如何使用Data Acquisition Toolbox从声卡获得两秒钟的声音数据

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<tbody><tr><td class="headercell" width="70%" height="20">&nbsp;MATLAB sound - code example&nbsp;
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            <td valign="top" width="89"><b>Author:</b></td>
            <td colspan="2"><a href="http://www.mathworks.com/matlabcentral/fileexchange/loadAuthor.do?objectType=author&amp;objectId=1095251">Steven&nbsp;Kolak</a></td>
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            <td valign="top" width="10" height="15">&nbsp;</td>
            <td valign="top" width="89" height="15"><b>Summary:</b></td>
            <td colspan="2" height="15">MATLAB sound code example - acquiring audio data into MATLAB</td>
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            <td valign="top" width="10" height="15">&nbsp;</td>
            <td valign="top" width="125" height="15"><b>MATLAB Release:</b></td>
            <td colspan="2" valign="bottom" height="15">R2006b</td>
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            <td valign="top" width="125" height="15"><b>Required Products:</b></td>
            
            <td colspan="2" height="15">Data Acquisition Toolbox</td>
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            <td valign="top" width="135"><b>Description:</b></td>
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            MATLAB supports sound acquisition and generation using the Data Acquisition Toolbox.<br>
<br>
This MATLAB code example shows you to acquire two seconds of audio data
from a sound card, calculate the frequency components, and plot the
results. <br>
<br>
Use the "Save and Publish to HTML" button in the MATLAB Editor to
execute this example and automatically generate a report of this work.<br>
<br>
Learn more about using MATLAB with sound cards at:<br>
<a href="http://www.mathworks.com/sound" target="_blank">http://www.mathworks.com/sound</a>  <br>
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            <td valign="top" width="25%"><b>File Id:</b></td>
            <td width="20%">12378</td>
            <td valign="top" width="25%"><b>Average rating:</b></td>
            <td width="29%">4.0</td>
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            <td valign="top"><b>Size:</b></td>
            <td>2 KB</td>
            <td valign="top"><b># of reviews:</b></td>
            <td>24</td>
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            <td valign="top">&nbsp;</td>
            <td valign="top"><b>Submitted:</b></td>
            <td>2006-09-23</td>
            <td valign="top"><b>Downloads:</b></td>
            <td>8088</td>
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            <td valign="top"><b>Subscribers:</b></td>
            <td>8</td>
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            <td valign="top"><b>Keywords:</b></td>
            <td colspan="3" valign="top">sound MATLAB audio acquisition example</td>
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                <td width="286"> <b class="feh4blk"> Acknowledgements</b></td>
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                  <a href="http://www.mathworks.com/matlabcentral/fileexchange/loadFile.do?objectId=14220&amp;objectType=FILE">G.729 source code</a><br>
            
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