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<TITLE>class EST_SingleChannelWave</TITLE>
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In file ../include/EST_SingleChannelWave.h:<TABLE BORDER=0><TR>
<TD VALIGN=TOP><H2>class <A HREF="#DOC.DOCU">EST_SingleChannelWave</A></H2></TD></H2></TD></TR></TABLE>
<BLOCKQUOTE>An alias for wave which can be used to tell the compiler you know it is a simple one channel wave.</BLOCKQUOTE>
<HR>
<H2>Inheritance:</H2>
<APPLET CODE="ClassGraph.class" WIDTH=600 HEIGHT=95>
<param name=classes value="CEST_Featured,MEST_Featured.html,CEST_Wave,MEST_Wave.html,CEST_SingleChannelWave,MEST_SingleChannelWave.html">
<param name=before value="M,M,M">
<param name=after value="Md_SP,Md_,M">
<param name=indent value="0,1,2">
<param name=arrowdir value="down">
</APPLET>
<HR>
<DL>
<P><TABLE>
<DT><H3>Public Methods</H3><DD><TR>
<TD VALIGN=TOP><A HREF="#DOC.82.1"><IMG ALT="[more]" BORDER=0 SRC=icon1.gif></A> </TD><TD><B>EST_SingleChannelWave</B> ()<BR>
<I>default constructor</I>
</TD></TR></TABLE></P>
</DL>
<HR><H3>Inherited from <A HREF="EST_Wave.html">EST_Wave</A>:</H3>
<DL>
<P><DL>
<DT><H3>Public Methods</H3><DD><DT>
<P> <B>Access functions for finding ampltiudes of samples </B>
<P><DL>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>short& <B><A HREF="#DOC.81.4.1">a</A></B>(int i, int <!1><A HREF="EST_Track.html#DOC.71.4.2">channel</A> = 0)
<DD><I>return amplitude of sample <tt>i</tt> from channel <tt> channel</tt>.</I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>short <B><A HREF="#DOC.81.4.2">operator()</A></B>(int i, int <!1><A HREF="EST_Track.html#DOC.71.4.2">channel</A>) const
<DD><I>return amplitude of sample <tt>i</tt> from channel <tt> channel</tt>.</I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>short <B><A HREF="#DOC.81.4.3">operator()</A></B>(int i) const
<DD><I>return amplitude of sample <tt>i</tt> from channel 0.</I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>short& <B><A HREF="#DOC.81.4.4">a_safe</A></B>(int i, int <!1><A HREF="EST_Track.html#DOC.71.4.2">channel</A> = 0)
<DD><I>Version of a() that returns zero if index is out of array bounds.</I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>float <B><A HREF="#DOC.81.4.5">t</A></B>(int i) const
<DD><I>return the time position in seconds of the ith sample</I>
</DL></P>
<DT>
<P> <B>Information functions </B>
<P><DL>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>int <B><A HREF="#DOC.81.5.1">num_samples</A></B>() const
<DD><I>return the number of samples in the waveform</I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>int <B><A HREF="#DOC.81.5.2">num_channels</A></B>() const
<DD><I>return the number of channels in the waveform</I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>int <B><A HREF="#DOC.81.5.3">sample_rate</A></B>() const
<DD><I>return the sampling rate (frequency)</I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>void <B><A HREF="#DOC.81.5.4">set_sample_rate</A></B>(const int <!1><A HREF="EST_TVector.html#DOC.15.1.20.3">n</A>)
<DD><I>Set sampling rate to <tt>n</tt></I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>int <B><A HREF="#DOC.81.5.5">length</A></B>() const
<DD><I>return the size of the waveform, ie.</I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>float <B><A HREF="#DOC.81.5.6">end</A></B>()
<DD><I>return the time position of the last sample</I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>bool <B><A HREF="#DOC.81.5.7">have_left_context</A></B>(unsigned int <!1><A HREF="EST_TVector.html#DOC.15.1.20.3">n</A>) const
<DD><I>Can we look N samples to the left?</I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif><!1><A HREF="EST_String.html">EST_String</A> <B><A HREF="#DOC.81.5.8">sample_type</A></B>() const
<DD><I>returns the file format of the file from which the waveform was read.</I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif><!1><A HREF="EST_String.html">EST_String</A> <B><A HREF="#DOC.81.5.9">name</A></B>() const
<DD><I>A string indentifying the waveform, commonly used to store the filename</I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>void <B><A HREF="#DOC.81.5.10">set_name</A></B>(const <!1><A HREF="EST_String.html">EST_String</A> <!1><A HREF="EST_TVector.html#DOC.15.1.20.3">n</A>)
<DD><I>Sets name</I>
</DL></P>
<DT>
<P> <B>Waveform manipulation functions </B>
<P><DL>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>void <B><A HREF="#DOC.81.6.1">resize</A></B>(int <!1><A HREF="EST_Wave.html#DOC.81.5.1">num_samples</A>, int <!1><A HREF="EST_Wave.html#DOC.81.5.2">num_channels</A> = EST_ALL, int <!1><A HREF="set.html">set</A>=1)
<DD><I>resize the waveform </I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>void <B><A HREF="#DOC.81.6.2">resample</A></B>(int rate)
<DD><I>Resample waveform to <tt>rate</tt></I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>void <B><A HREF="#DOC.81.6.3">rescale</A></B>(float gain, int normalize=0)
<DD><I>multiply all samples by a factor <tt>gain</tt>.</I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>void <B><A HREF="#DOC.81.6.4">clear</A></B>()
<DD><I>clear waveform and set size to 0</I>
</DL></P>
<DT>
<P> <B>File i/o functions </B>
<P><DL>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif><!1><A HREF="EST_read_status.html">EST_read_status</A> <B><A HREF="#DOC.81.7.1">load</A></B>(const <!1><A HREF="EST_String.html">EST_String</A> <!1><A HREF="EST_TokenStream.html#DOC.10.7.9">filename</A>, int offset=0, int <!1><A HREF="EST_Wave.html#DOC.81.5.5">length</A> = 0, int rate = default_sample_rate)
<DD><I>Load a file into the waveform.</I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif><!1><A HREF="EST_read_status.html">EST_read_status</A> <B><A HREF="#DOC.81.7.2">load_file</A></B>(const <!1><A HREF="EST_String.html">EST_String</A> <!1><A HREF="EST_TokenStream.html#DOC.10.7.9">filename</A>, const <!1><A HREF="EST_String.html">EST_String</A> filetype, int <!1><A HREF="EST_Wave.html#DOC.81.5.3">sample_rate</A>, const <!1><A HREF="EST_String.html">EST_String</A> <!1><A HREF="EST_Wave.html#DOC.81.5.8">sample_type</A>, int bo, int nc, int offset = 0, int <!1><A HREF="EST_Wave.html#DOC.81.5.5">length</A> = 0)
<DD><I>Load a file of type <tt>filetype</tt> into the waveform.</I>
</DL></P>
<DT>
<IMG ALT="o" SRC=icon2.gif><!1><A HREF="EST_Wave.html">EST_Wave</A>& <B>operator = </B>(const <!1><A HREF="EST_Wave.html">EST_Wave</A>& <!1><A HREF="EST_TrieNode.html#DOC.12.1">w</A>)
<DT>
<IMG ALT="o" SRC=icon2.gif><!1><A HREF="EST_Wave.html">EST_Wave</A>& <B>operator +=</B>(const <!1><A HREF="EST_Wave.html">EST_Wave</A> &<!1><A HREF="EST_Wave.html#DOC.81.4.1">a</A>)
<DT>
<IMG ALT="o" SRC=icon2.gif><!1><A HREF="EST_Wave.html">EST_Wave</A>& <B>operator |=</B>(const <!1><A HREF="EST_Wave.html">EST_Wave</A> &<!1><A HREF="EST_Wave.html#DOC.81.4.1">a</A>)
<DT>
<IMG ALT="o" SRC=icon2.gif>void <B>integrity</B>() const
</DL></P>
</DL>
<HR><H3>Inherited from <A HREF="EST_Featured.html">EST_Featured</A>:</H3>
<DL>
</DL>
<A NAME="DOC.DOCU"></A>
<HR>
<H2>Documentation</H2>
<BLOCKQUOTE>An alias for wave which can be used to tell the compiler you know it
is a simple one channel wave. This can speed up access.
<P></BLOCKQUOTE>
<DL>
<A NAME="EST_SingleChannelWave"></A>
<A NAME="DOC.82.1"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B> EST_SingleChannelWave()</B></TT>
<DD>default constructor
<DL><DT><DD></DL><P></DL>
<HR><DL><DT><B>This class has no child classes.</B></DL>
<DL><DT><DT><B>Author:</B><DD>Richard Caley <rjc@cstr.ed.ac.uk>
<DT><B>Version:</B><DD><IMG BORDER=0 SRC=g000006.gif>
<DD></DL><P><P><I><A HREF="index.html">Alphabetic index</A></I> <I><A HREF="HIER.html">HTML hierarchy of classes</A> or <A HREF="HIERjava.html">Java</A></I></P><HR>
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<P Align=left><I>This page is part of the
<A HREF="http://www.cstr.ed.ac.uk/projects/speech_tools.html">
Edinburgh Speech Tools Library</A> documentation
<br>
Copyright <A HREF="http://www.ed.ac.uk"> University of Edinburgh</A> 1997
<br>
Contact: <A HREF="mailto:speech_toolss@cstr.ed.ac.uk">
speech_tools@cstr.ed.ac.uk </a>
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