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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/1999/REC-html401-19991224/loose.dtd">
<html>
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<title>SoundRecord - /README.txt</title>
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<a href="http://developer.apple.com/">ADC Home</a> > <a href="../../referencelibrary/index.html">Reference Library</a> > <a href="../../samplecode/index.html">Sample Code</a> > <a href="../../samplecode/Java/index.html">Java</a> > <a href="../../samplecode/Java/idxQuickTime-date.html">QuickTime</a> > <A HREF="javascript:location.replace('index.html');">SoundRecord</A> >
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<td><h1><div id="pagehead">SoundRecord</div></h1></td>
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<h2>/README.txt</h2>
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<p><strong>View Source Code:</strong>
<select name="gotop" onChange="JumpToNewPage();" style="width:340px"><option selected value="ingnore">Select File</option>
<option value="listing1.html">/README.txt</option>
<option value="listing2.html">/src/PlayMovie.java</option>
<option value="listing3.html">/src/SoundRecord.java</option></select>
</p>
</form>
<p><strong><a href="SoundRecord.zip">Download Sample</a></strong> (“SoundRecord.zip”, 69.7K)<BR>
<strong><a href="SoundRecord.dmg">Download Sample</a></strong> (“SoundRecord.dmg”, 124.0K)</p>
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<!--googleon: index -->
<pre class="sourcecodebox">=============================================================================
QuickTime for Java SDK Updated: 1 April 2006
Read Me Notes to "Sound Record" Demo and Sample Code
=============================================================================
This code shows using the SequenceGrabber for simple audio recording
=============================================================================
The minimum build requirements for this Sample Code are:
- Common:
- QuickTime 7 or later
- Mac OS X:
- XCode 2.2 or later
- Java 1.4.2 or later, 1.5.0 recommended
- Windows:
- Windows 2000, XP or later
- Java 1.4.2 or later, 1.5.0 recommended
- JRE/JDK from Sun Microsystems, Inc. recommended
- PATH environment variable includes java and javac
=============================================================================
No media requirements for this Sample Code.
=============================================================================
Notes & Comments
Settings - allows the user to specify the source, compression and format for
the recording
Record - create a file to save the recorded information in and start recording
Stop - stop recording and show window with movie in it
You need to dispose of your connection to the Audio Channel before playing back
the recorded sound, (otherwise you won't hear your recorded sound). This is a
limitation of the Windows sound architecture.
It is important that your code call setDataOutput() before any other sequence
grabber call's e.g prepare(). Failure to do so will result in your program
silently aborting.
You do not need to create a moviefile to save the recorded data as the sequence
grabber will automatically create a movie file for you based on the file you set
in the setDataOutput method.
It is important to note that the Java Garbage Collector may hold onto
previously created files, and not free them up when expected. The call
QTUtils.reclaimMemory() in the SoundRecord.java code signals the garbage
collector to run, however this is not a guarantee that the GC will immediately
be invoked. The side affect of this behaviour is that you may occassionaly see
a message that a file is use if you try to save a recording the second time
using the same filename.
=============================================================================
General Comments
- QTSession.open and close:
A QTSession.open will perform a gestalt check to ensure that QuickTime is
present and is initialized. This is a required call before any QuickTime Java
classes can be used.
When the user closes the window the program will quit, first calling
QTSession.close to terminate QuickTime. It is necessary for programs to call
QTSession.close if they have previously called QTSession.open in order to shut
down QuickTime properly.
=============================================================================
QuickTime and QuickTime for Java are trademarks of Apple Computer, Inc.
(c) 1998 - 2006 Apple Computer Inc. All rights reserved.
</pre>
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<th>Did this document help you?</th>
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<div style="margin-bottom: 8px"><a href="http://developer.apple.com/feedback/?v=1&url=/samplecode/SoundRecord/listing1.html%3Fid%3DDTS10000998-2.0&media=dvd" target=_new>Yes</a>: Tell us what works for you.</div>
<div style="margin-bottom: 8px"><a href="http://developer.apple.com/feedback/?v=2&url=/samplecode/SoundRecord/listing1.html%3Fid%3DDTS10000998-2.0&media=dvd" target=_new>It’s good, but:</a> Report typos, inaccuracies, and so forth.</div>
<div><a href="http://developer.apple.com/feedback/?v=3&url=/samplecode/SoundRecord/listing1.html%3Fid%3DDTS10000998-2.0&media=dvd" target=_new>It wasn’t helpful</a>: Tell us what would have helped.</div>
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