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<meta name="Description" content="Tutorial for PortAudio, a cross platform, open-source, audio I/O library.It provides a very simple API for recording and/or playing sound using a simple callback function.">
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<title>PortAudio Tutorial</title>
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<h1>
PortAudio Tutorial</h1></center>
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<h2>
<font size=+2><a href="http://www.portaudio.com/">home</a> |
<a href="pa_tutorial.html">contents</a>
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<h2>
Compiling for ASIO (Windows or Macintosh)</h2>
<blockquote>ASIO is a low latency audio API from Steinberg. To compile
an ASIO application, you must first <a href="http://www.steinberg.net/en/ps/support/3rdparty/">download
the ASIO SDK</a> from Steinberg. You also need to obtain ASIO drivers from
the manufacturer of your audio hardware.
<p>Note: I am using '/' as a file separator below. On Macintosh replace
'/' with ':'. On Windows, replace '/' with '\'.
<p>You may try compiling the "pa_tests/patest_saw.c" file first because
it is the simplest.
<p>Several files are common to all PortAudio implementations. Add the following
source files to your project:
<blockquote>pa_common/pa_lib.c
<br>pa_common/portaudio.h
<br>pa_common/pa_host.h</blockquote>
To use ASIO with the PortAudio library add the following:
<blockquote>
<pre>pa_asio/pa_asio.cpp</pre>
</blockquote>
</blockquote>
<h3>
Macintosh Specific</h3>
<blockquote>Note: there is a bug in the <b>Macintosh</b> ASIO code. Mac
users should read the file "pa_asio:readme_asio_sdk_patch.txt" for information
on how to fix the bug.
<p>Add these files from the ASIO SDK downloaded from Steinberg:</blockquote>
<blockquote>
<blockquote><tt>host/asiodrivers.cpp</tt>
<br><tt>host/mac/asioshlib.cpp</tt>
<br><tt>host/mac/codefragements.cpp</tt></blockquote>
The ASIO drivers should be in a folder called "ASIO Drivers" beneath your
application.</blockquote>
<h3>
Windows Specific</h3>
<blockquote>Add these files from the ASIO SDK downloaded from Steinberg:</blockquote>
<blockquote>
<blockquote><tt>host/asiodrivers.cpp</tt>
<br><tt>host/asiolist.cpp</tt>
<br><tt>common/asio.cpp</tt></blockquote>
</blockquote>
<blockquote>Add these directories to the path for include files:</blockquote>
<blockquote>
<blockquote><tt>host</tt>
<br><tt>host/pc</tt>
<br><tt>common</tt></blockquote>
</blockquote>
<blockquote>and link with the system library "<b>winmm.lib</b>". For MS
Visual C++:
<ul>
<li>
select "Settings..." from the "Project" menu,</li>
<li>
select the project name in the tree on the left,</li>
<li>
choose "All Configurations" in the popup menu above the tree,</li>
<li>
select the "Link" tab,</li>
<li>
enter "winmm.lib", without quotes, as the first item in the "Object/library
modules:" field.</li>
</ul>
</blockquote>
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