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/usr/share/doc/python3-docs/html/library/wave.html
(29868B)
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="X-UA-Compatible" content="IE=Edge" /> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>22.4. wave — Read and write WAV files — Python 3.6.7 documentation</title> <link rel="stylesheet" href="../_static/pydoctheme.css" type="text/css" /> <link rel="stylesheet" href="../_static/pygments.css" type="text/css" /> <script type="text/javascript" id="documentation_options" data-url_root="../" src="../_static/documentation_options.js"></script> <script type="text/javascript" src="../_static/jquery.js"></script> <script type="text/javascript" src="../_static/underscore.js"></script> <script type="text/javascript" src="../_static/doctools.js"></script> <script type="text/javascript" src="../_static/sidebar.js"></script> <link rel="search" type="application/opensearchdescription+xml" title="Search within Python 3.6.7 documentation" href="../_static/opensearch.xml"/> <link rel="author" title="About these documents" href="../about.html" /> <link rel="index" title="Index" href="../genindex.html" /> <link rel="search" title="Search" href="../search.html" /> <link rel="copyright" title="Copyright" href="../copyright.html" /> <link rel="next" title="22.5. chunk — Read IFF chunked data" href="chunk.html" /> <link rel="prev" title="22.3. sunau — Read and write Sun AU files" href="sunau.html" /> <link rel="shortcut icon" type="image/png" href="../_static/py.png" /> <link rel="canonical" href="https://docs.python.org/3/library/wave.html" /> <script type="text/javascript" src="../_static/copybutton.js"></script> </head><body> <div class="related" role="navigation" aria-label="related navigation"> <h3>Navigation</h3> <ul> <li class="right" style="margin-right: 10px"> <a href="../genindex.html" title="General Index" accesskey="I">index</a></li> <li class="right" > <a href="../py-modindex.html" title="Python Module Index" >modules</a> |</li> <li class="right" > <a href="chunk.html" title="22.5. chunk — Read IFF chunked data" accesskey="N">next</a> |</li> <li class="right" > <a href="sunau.html" title="22.3. sunau — Read and write Sun AU files" accesskey="P">previous</a> |</li> <li><img src="../_static/py.png" alt="" style="vertical-align: middle; margin-top: -1px"/></li> <li><a href="https://www.python.org/">Python</a> »</li> <li> <a href="../index.html">3.6.7 Documentation</a> » </li> <li class="nav-item nav-item-1"><a href="index.html" >The Python Standard Library</a> »</li> <li class="nav-item nav-item-2"><a href="mm.html" accesskey="U">22. Multimedia Services</a> »</li> <li class="right"> <div class="inline-search" style="display: none" role="search"> <form class="inline-search" action="../search.html" method="get"> <input placeholder="Quick search" type="text" name="q" /> <input type="submit" value="Go" /> <input type="hidden" name="check_keywords" value="yes" /> <input type="hidden" name="area" value="default" /> </form> </div> <script type="text/javascript">$('.inline-search').show(0);</script> | </li> </ul> </div> <div class="document"> <div class="documentwrapper"> <div class="bodywrapper"> <div class="body" role="main"> <div class="section" id="module-wave"> <span id="wave-read-and-write-wav-files"></span><h1>22.4. <a class="reference internal" href="#module-wave" title="wave: Provide an interface to the WAV sound format."><code class="xref py py-mod docutils literal notranslate"><span class="pre">wave</span></code></a> — Read and write WAV files<a class="headerlink" href="#module-wave" title="Permalink to this headline">¶</a></h1> <p><strong>Source code:</strong> <a class="reference external" href="https://github.com/python/cpython/tree/3.6/Lib/wave.py">Lib/wave.py</a></p> <hr class="docutils" /> <p>The <a class="reference internal" href="#module-wave" title="wave: Provide an interface to the WAV sound format."><code class="xref py py-mod docutils literal notranslate"><span class="pre">wave</span></code></a> module provides a convenient interface to the WAV sound format. It does not support compression/decompression, but it does support mono/stereo.</p> <p>The <a class="reference internal" href="#module-wave" title="wave: Provide an interface to the WAV sound format."><code class="xref py py-mod docutils literal notranslate"><span class="pre">wave</span></code></a> module defines the following function and exception:</p> <dl class="function"> <dt id="wave.open"> <code class="descclassname">wave.</code><code class="descname">open</code><span class="sig-paren">(</span><em>file</em>, <em>mode=None</em><span class="sig-paren">)</span><a class="headerlink" href="#wave.open" title="Permalink to this definition">¶</a></dt> <dd><p>If <em>file</em> is a string, open the file by that name, otherwise treat it as a file-like object. <em>mode</em> can be:</p> <dl class="docutils"> <dt><code class="docutils literal notranslate"><span class="pre">'rb'</span></code></dt> <dd>Read only mode.</dd> <dt><code class="docutils literal notranslate"><span class="pre">'wb'</span></code></dt> <dd>Write only mode.</dd> </dl> <p>Note that it does not allow read/write WAV files.</p> <p>A <em>mode</em> of <code class="docutils literal notranslate"><span class="pre">'rb'</span></code> returns a <code class="xref py py-class docutils literal notranslate"><span class="pre">Wave_read</span></code> object, while a <em>mode</em> of <code class="docutils literal notranslate"><span class="pre">'wb'</span></code> returns a <code class="xref py py-class docutils literal notranslate"><span class="pre">Wave_write</span></code> object. If <em>mode</em> is omitted and a file-like object is passed as <em>file</em>, <code class="docutils literal notranslate"><span class="pre">file.mode</span></code> is used as the default value for <em>mode</em>.</p> <p>If you pass in a file-like object, the wave object will not close it when its <code class="xref py py-meth docutils literal notranslate"><span class="pre">close()</span></code> method is called; it is the caller’s responsibility to close the file object.</p> <p>The <a class="reference internal" href="#wave.open" title="wave.open"><code class="xref py py-func docutils literal notranslate"><span class="pre">open()</span></code></a> function may be used in a <a class="reference internal" href="../reference/compound_stmts.html#with"><code class="xref std std-keyword docutils literal notranslate"><span class="pre">with</span></code></a> statement. When the <a class="reference internal" href="../reference/compound_stmts.html#with"><code class="xref std std-keyword docutils literal notranslate"><span class="pre">with</span></code></a> block completes, the <a class="reference internal" href="#wave.Wave_read.close" title="wave.Wave_read.close"><code class="xref py py-meth docutils literal notranslate"><span class="pre">Wave_read.close()</span></code></a> or <a class="reference internal" href="#wave.Wave_write.close" title="wave.Wave_write.close"><code class="xref py py-meth docutils literal notranslate"><span class="pre">Wave_write.close()</span></code></a> method is called.</p> <div class="versionchanged"> <p><span class="versionmodified">Changed in version 3.4: </span>Added support for unseekable files.</p> </div> </dd></dl> <dl class="function"> <dt id="wave.openfp"> <code class="descclassname">wave.</code><code class="descname">openfp</code><span class="sig-paren">(</span><em>file</em>, <em>mode</em><span class="sig-paren">)</span><a class="headerlink" href="#wave.openfp" title="Permalink to this definition">¶</a></dt> <dd><p>A synonym for <a class="reference internal" href="#wave.open" title="wave.open"><code class="xref py py-func docutils literal notranslate"><span class="pre">open()</span></code></a>, maintained for backwards compatibility.</p> </dd></dl> <dl class="exception"> <dt id="wave.Error"> <em class="property">exception </em><code class="descclassname">wave.</code><code class="descname">Error</code><a class="headerlink" href="#wave.Error" title="Permalink to this definition">¶</a></dt> <dd><p>An error raised when something is impossible because it violates the WAV specification or hits an implementation deficiency.</p> </dd></dl> <div class="section" id="wave-read-objects"> <span id="id1"></span><h2>22.4.1. Wave_read Objects<a class="headerlink" href="#wave-read-objects" title="Permalink to this headline">¶</a></h2> <p>Wave_read objects, as returned by <a class="reference internal" href="#wave.open" title="wave.open"><code class="xref py py-func docutils literal notranslate"><span class="pre">open()</span></code></a>, have the following methods:</p> <dl class="method"> <dt id="wave.Wave_read.close"> <code class="descclassname">Wave_read.</code><code class="descname">close</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#wave.Wave_read.close" title="Permalink to this definition">¶</a></dt> <dd><p>Close the stream if it was opened by <a class="reference internal" href="#module-wave" title="wave: Provide an interface to the WAV sound format."><code class="xref py py-mod docutils literal notranslate"><span class="pre">wave</span></code></a>, and make the instance unusable. This is called automatically on object collection.</p> </dd></dl> <dl class="method"> <dt id="wave.Wave_read.getnchannels"> <code class="descclassname">Wave_read.</code><code class="descname">getnchannels</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#wave.Wave_read.getnchannels" title="Permalink to this definition">¶</a></dt> <dd><p>Returns number of audio channels (<code class="docutils literal notranslate"><span class="pre">1</span></code> for mono, <code class="docutils literal notranslate"><span class="pre">2</span></code> for stereo).</p> </dd></dl> <dl class="method"> <dt id="wave.Wave_read.getsampwidth"> <code class="descclassname">Wave_read.</code><code class="descname">getsampwidth</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#wave.Wave_read.getsampwidth" title="Permalink to this definition">¶</a></dt> <dd><p>Returns sample width in bytes.</p> </dd></dl> <dl class="method"> <dt id="wave.Wave_read.getframerate"> <code class="descclassname">Wave_read.</code><code class="descname">getframerate</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#wave.Wave_read.getframerate" title="Permalink to this definition">¶</a></dt> <dd><p>Returns sampling frequency.</p> </dd></dl> <dl class="method"> <dt id="wave.Wave_read.getnframes"> <code class="descclassname">Wave_read.</code><code class="descname">getnframes</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#wave.Wave_read.getnframes" title="Permalink to this definition">¶</a></dt> <dd><p>Returns number of audio frames.</p> </dd></dl> <dl class="method"> <dt id="wave.Wave_read.getcomptype"> <code class="descclassname">Wave_read.</code><code class="descname">getcomptype</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#wave.Wave_read.getcomptype" title="Permalink to this definition">¶</a></dt> <dd><p>Returns compression type (<code class="docutils literal notranslate"><span class="pre">'NONE'</span></code> is the only supported type).</p> </dd></dl> <dl class="method"> <dt id="wave.Wave_read.getcompname"> <code class="descclassname">Wave_read.</code><code class="descname">getcompname</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#wave.Wave_read.getcompname" title="Permalink to this definition">¶</a></dt> <dd><p>Human-readable version of <a class="reference internal" href="#wave.Wave_read.getcomptype" title="wave.Wave_read.getcomptype"><code class="xref py py-meth docutils literal notranslate"><span class="pre">getcomptype()</span></code></a>. Usually <code class="docutils literal notranslate"><span class="pre">'not</span> <span class="pre">compressed'</span></code> parallels <code class="docutils literal notranslate"><span class="pre">'NONE'</span></code>.</p> </dd></dl> <dl class="method"> <dt id="wave.Wave_read.getparams"> <code class="descclassname">Wave_read.</code><code class="descname">getparams</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#wave.Wave_read.getparams" title="Permalink to this definition">¶</a></dt> <dd><p>Returns a <a class="reference internal" href="collections.html#collections.namedtuple" title="collections.namedtuple"><code class="xref py py-func docutils literal notranslate"><span class="pre">namedtuple()</span></code></a> <code class="docutils literal notranslate"><span class="pre">(nchannels,</span> <span class="pre">sampwidth,</span> <span class="pre">framerate,</span> <span class="pre">nframes,</span> <span class="pre">comptype,</span> <span class="pre">compname)</span></code>, equivalent to output of the <code class="xref py py-meth docutils literal notranslate"><span class="pre">get*()</span></code> methods.</p> </dd></dl> <dl class="method"> <dt id="wave.Wave_read.readframes"> <code class="descclassname">Wave_read.</code><code class="descname">readframes</code><span class="sig-paren">(</span><em>n</em><span class="sig-paren">)</span><a class="headerlink" href="#wave.Wave_read.readframes" title="Permalink to this definition">¶</a></dt> <dd><p>Reads and returns at most <em>n</em> frames of audio, as a <a class="reference internal" href="stdtypes.html#bytes" title="bytes"><code class="xref py py-class docutils literal notranslate"><span class="pre">bytes</span></code></a> object.</p> </dd></dl> <dl class="method"> <dt id="wave.Wave_read.rewind"> <code class="descclassname">Wave_read.</code><code class="descname">rewind</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#wave.Wave_read.rewind" title="Permalink to this definition">¶</a></dt> <dd><p>Rewind the file pointer to the beginning of the audio stream.</p> </dd></dl> <p>The following two methods are defined for compatibility with the <a class="reference internal" href="aifc.html#module-aifc" title="aifc: Read and write audio files in AIFF or AIFC format."><code class="xref py py-mod docutils literal notranslate"><span class="pre">aifc</span></code></a> module, and don’t do anything interesting.</p> <dl class="method"> <dt id="wave.Wave_read.getmarkers"> <code class="descclassname">Wave_read.</code><code class="descname">getmarkers</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#wave.Wave_read.getmarkers" title="Permalink to this definition">¶</a></dt> <dd><p>Returns <code class="docutils literal notranslate"><span class="pre">None</span></code>.</p> </dd></dl> <dl class="method"> <dt id="wave.Wave_read.getmark"> <code class="descclassname">Wave_read.</code><code class="descname">getmark</code><span class="sig-paren">(</span><em>id</em><span class="sig-paren">)</span><a class="headerlink" href="#wave.Wave_read.getmark" title="Permalink to this definition">¶</a></dt> <dd><p>Raise an error.</p> </dd></dl> <p>The following two methods define a term “position” which is compatible between them, and is otherwise implementation dependent.</p> <dl class="method"> <dt id="wave.Wave_read.setpos"> <code class="descclassname">Wave_read.</code><code class="descname">setpos</code><span class="sig-paren">(</span><em>pos</em><span class="sig-paren">)</span><a class="headerlink" href="#wave.Wave_read.setpos" title="Permalink to this definition">¶</a></dt> <dd><p>Set the file pointer to the specified position.</p> </dd></dl> <dl class="method"> <dt id="wave.Wave_read.tell"> <code class="descclassname">Wave_read.</code><code class="descname">tell</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#wave.Wave_read.tell" title="Permalink to this definition">¶</a></dt> <dd><p>Return current file pointer position.</p> </dd></dl> </div> <div class="section" id="wave-write-objects"> <span id="id2"></span><h2>22.4.2. Wave_write Objects<a class="headerlink" href="#wave-write-objects" title="Permalink to this headline">¶</a></h2> <p>For seekable output streams, the <code class="docutils literal notranslate"><span class="pre">wave</span></code> header will automatically be updated to reflect the number of frames actually written. For unseekable streams, the <em>nframes</em> value must be accurate when the first frame data is written. An accurate <em>nframes</em> value can be achieved either by calling <a class="reference internal" href="#wave.Wave_write.setnframes" title="wave.Wave_write.setnframes"><code class="xref py py-meth docutils literal notranslate"><span class="pre">setnframes()</span></code></a> or <a class="reference internal" href="#wave.Wave_write.setparams" title="wave.Wave_write.setparams"><code class="xref py py-meth docutils literal notranslate"><span class="pre">setparams()</span></code></a> with the number of frames that will be written before <a class="reference internal" href="#wave.Wave_write.close" title="wave.Wave_write.close"><code class="xref py py-meth docutils literal notranslate"><span class="pre">close()</span></code></a> is called and then using <a class="reference internal" href="#wave.Wave_write.writeframesraw" title="wave.Wave_write.writeframesraw"><code class="xref py py-meth docutils literal notranslate"><span class="pre">writeframesraw()</span></code></a> to write the frame data, or by calling <a class="reference internal" href="#wave.Wave_write.writeframes" title="wave.Wave_write.writeframes"><code class="xref py py-meth docutils literal notranslate"><span class="pre">writeframes()</span></code></a> with all of the frame data to be written. In the latter case <a class="reference internal" href="#wave.Wave_write.writeframes" title="wave.Wave_write.writeframes"><code class="xref py py-meth docutils literal notranslate"><span class="pre">writeframes()</span></code></a> will calculate the number of frames in the data and set <em>nframes</em> accordingly before writing the frame data.</p> <p>Wave_write objects, as returned by <a class="reference internal" href="#wave.open" title="wave.open"><code class="xref py py-func docutils literal notranslate"><span class="pre">open()</span></code></a>, have the following methods:</p> <div class="versionchanged"> <p><span class="versionmodified">Changed in version 3.4: </span>Added support for unseekable files.</p> </div> <dl class="method"> <dt id="wave.Wave_write.close"> <code class="descclassname">Wave_write.</code><code class="descname">close</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#wave.Wave_write.close" title="Permalink to this definition">¶</a></dt> <dd><p>Make sure <em>nframes</em> is correct, and close the file if it was opened by <a class="reference internal" href="#module-wave" title="wave: Provide an interface to the WAV sound format."><code class="xref py py-mod docutils literal notranslate"><span class="pre">wave</span></code></a>. This method is called upon object collection. It will raise an exception if the output stream is not seekable and <em>nframes</em> does not match the number of frames actually written.</p> </dd></dl> <dl class="method"> <dt id="wave.Wave_write.setnchannels"> <code class="descclassname">Wave_write.</code><code class="descname">setnchannels</code><span class="sig-paren">(</span><em>n</em><span class="sig-paren">)</span><a class="headerlink" href="#wave.Wave_write.setnchannels" title="Permalink to this definition">¶</a></dt> <dd><p>Set the number of channels.</p> </dd></dl> <dl class="method"> <dt id="wave.Wave_write.setsampwidth"> <code class="descclassname">Wave_write.</code><code class="descname">setsampwidth</code><span class="sig-paren">(</span><em>n</em><span class="sig-paren">)</span><a class="headerlink" href="#wave.Wave_write.setsampwidth" title="Permalink to this definition">¶</a></dt> <dd><p>Set the sample width to <em>n</em> bytes.</p> </dd></dl> <dl class="method"> <dt id="wave.Wave_write.setframerate"> <code class="descclassname">Wave_write.</code><code class="descname">setframerate</code><span class="sig-paren">(</span><em>n</em><span class="sig-paren">)</span><a class="headerlink" href="#wave.Wave_write.setframerate" title="Permalink to this definition">¶</a></dt> <dd><p>Set the frame rate to <em>n</em>.</p> <div class="versionchanged"> <p><span class="versionmodified">Changed in version 3.2: </span>A non-integral input to this method is rounded to the nearest integer.</p> </div> </dd></dl> <dl class="method"> <dt id="wave.Wave_write.setnframes"> <code class="descclassname">Wave_write.</code><code class="descname">setnframes</code><span class="sig-paren">(</span><em>n</em><span class="sig-paren">)</span><a class="headerlink" href="#wave.Wave_write.setnframes" title="Permalink to this definition">¶</a></dt> <dd><p>Set the number of frames to <em>n</em>. This will be changed later if the number of frames actually written is different (this update attempt will raise an error if the output stream is not seekable).</p> </dd></dl> <dl class="method"> <dt id="wave.Wave_write.setcomptype"> <code class="descclassname">Wave_write.</code><code class="descname">setcomptype</code><span class="sig-paren">(</span><em>type</em>, <em>name</em><span class="sig-paren">)</span><a class="headerlink" href="#wave.Wave_write.setcomptype" title="Permalink to this definition">¶</a></dt> <dd><p>Set the compression type and description. At the moment, only compression type <code class="docutils literal notranslate"><span class="pre">NONE</span></code> is supported, meaning no compression.</p> </dd></dl> <dl class="method"> <dt id="wave.Wave_write.setparams"> <code class="descclassname">Wave_write.</code><code class="descname">setparams</code><span class="sig-paren">(</span><em>tuple</em><span class="sig-paren">)</span><a class="headerlink" href="#wave.Wave_write.setparams" title="Permalink to this definition">¶</a></dt> <dd><p>The <em>tuple</em> should be <code class="docutils literal notranslate"><span class="pre">(nchannels,</span> <span class="pre">sampwidth,</span> <span class="pre">framerate,</span> <span class="pre">nframes,</span> <span class="pre">comptype,</span> <span class="pre">compname)</span></code>, with values valid for the <code class="xref py py-meth docutils literal notranslate"><span class="pre">set*()</span></code> methods. Sets all parameters.</p> </dd></dl> <dl class="method"> <dt id="wave.Wave_write.tell"> <code class="descclassname">Wave_write.</code><code class="descname">tell</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#wave.Wave_write.tell" title="Permalink to this definition">¶</a></dt> <dd><p>Return current position in the file, with the same disclaimer for the <a class="reference internal" href="#wave.Wave_read.tell" title="wave.Wave_read.tell"><code class="xref py py-meth docutils literal notranslate"><span class="pre">Wave_read.tell()</span></code></a> and <a class="reference internal" href="#wave.Wave_read.setpos" title="wave.Wave_read.setpos"><code class="xref py py-meth docutils literal notranslate"><span class="pre">Wave_read.setpos()</span></code></a> methods.</p> </dd></dl> <dl class="method"> <dt id="wave.Wave_write.writeframesraw"> <code class="descclassname">Wave_write.</code><code class="descname">writeframesraw</code><span class="sig-paren">(</span><em>data</em><span class="sig-paren">)</span><a class="headerlink" href="#wave.Wave_write.writeframesraw" title="Permalink to this definition">¶</a></dt> <dd><p>Write audio frames, without correcting <em>nframes</em>.</p> <div class="versionchanged"> <p><span class="versionmodified">Changed in version 3.4: </span>Any <a class="reference internal" href="../glossary.html#term-bytes-like-object"><span class="xref std std-term">bytes-like object</span></a> is now accepted.</p> </div> </dd></dl> <dl class="method"> <dt id="wave.Wave_write.writeframes"> <code class="descclassname">Wave_write.</code><code class="descname">writeframes</code><span class="sig-paren">(</span><em>data</em><span class="sig-paren">)</span><a class="headerlink" href="#wave.Wave_write.writeframes" title="Permalink to this definition">¶</a></dt> <dd><p>Write audio frames and make sure <em>nframes</em> is correct. It will raise an error if the output stream is not seekable and the total number of frames that have been written after <em>data</em> has been written does not match the previously set value for <em>nframes</em>.</p> <div class="versionchanged"> <p><span class="versionmodified">Changed in version 3.4: </span>Any <a class="reference internal" href="../glossary.html#term-bytes-like-object"><span class="xref std std-term">bytes-like object</span></a> is now accepted.</p> </div> </dd></dl> <p>Note that it is invalid to set any parameters after calling <code class="xref py py-meth docutils literal notranslate"><span class="pre">writeframes()</span></code> or <code class="xref py py-meth docutils literal notranslate"><span class="pre">writeframesraw()</span></code>, and any attempt to do so will raise <a class="reference internal" href="#wave.Error" title="wave.Error"><code class="xref py py-exc docutils literal notranslate"><span class="pre">wave.Error</span></code></a>.</p> </div> </div> </div> </div> </div> <div class="sphinxsidebar" role="navigation" aria-label="main navigation"> <div class="sphinxsidebarwrapper"> <h3><a href="../contents.html">Table Of Contents</a></h3> <ul> <li><a class="reference internal" href="#">22.4. <code class="docutils literal notranslate"><span class="pre">wave</span></code> — Read and write WAV files</a><ul> <li><a class="reference internal" href="#wave-read-objects">22.4.1. Wave_read Objects</a></li> <li><a class="reference internal" href="#wave-write-objects">22.4.2. Wave_write Objects</a></li> </ul> </li> </ul> <h4>Previous topic</h4> <p class="topless"><a href="sunau.html" title="previous chapter">22.3. <code class="docutils literal notranslate"><span class="pre">sunau</span></code> — Read and write Sun AU files</a></p> <h4>Next topic</h4> <p class="topless"><a href="chunk.html" title="next chapter">22.5. <code class="docutils literal notranslate"><span class="pre">chunk</span></code> — Read IFF chunked data</a></p> <div role="note" aria-label="source link"> <h3>This Page</h3> <ul class="this-page-menu"> <li><a href="../bugs.html">Report a Bug</a></li> <li> <a href="https://github.com/python/cpython/blob/3.6/Doc/library/wave.rst" rel="nofollow">Show Source </a> </li> </ul> </div> </div> </div> <div class="clearer"></div> </div> <div class="related" role="navigation" aria-label="related navigation"> <h3>Navigation</h3> <ul> <li class="right" style="margin-right: 10px"> <a href="../genindex.html" title="General Index" >index</a></li> <li class="right" > <a href="../py-modindex.html" title="Python Module Index" >modules</a> |</li> <li class="right" > <a href="chunk.html" title="22.5. chunk — Read IFF chunked data" >next</a> |</li> <li class="right" > <a href="sunau.html" title="22.3. sunau — Read and write Sun AU files" >previous</a> |</li> <li><img src="../_static/py.png" alt="" style="vertical-align: middle; margin-top: -1px"/></li> <li><a href="https://www.python.org/">Python</a> »</li> <li> <a href="../index.html">3.6.7 Documentation</a> » </li> <li class="nav-item nav-item-1"><a href="index.html" >The Python Standard Library</a> »</li> <li class="nav-item nav-item-2"><a href="mm.html" >22. 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