David Maynard, Bruce Karsh, Chris Perry, Thant Tessman
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DESCRIPTION:
Amesh computes an estimation of the spectrum of an audio input.
END_DESCRIPTION
BRIEF_INSTRUCTIONS:
<B>Audio Source:</B> Select either microphone or external line input from the <A target=diag HREF="http://localhost/cgi-bin/Demos/DEMO_execute.cgi?related=amesh&exe=apanel">audio control panel</A> or specify an audio file on the amesh command line.
<BR>
<BR><B>Middle Mouse:</B>
Activates track-ball style interface to change viewing angle.<BR>
<BR><B>Left Mouse:</B> Click and drag will zoom in and out of the
graphics.<BR>
<BR><B>Right Mouse:</B> Pop-up menu with assorted options.<BR>
<BR>
<B>ESC-key or Quit:</B> Exits application
END_BRIEF_INSTRUCTIONS
DETAILED_INSTRUCTIONS:
<TABLE WIDTH=560 border=0>
<TR>
<TD>
Amesh computes an estimation of the spectrum of
an audio input every frame and displays a 3D graph of the last
25 frames. The frequencies range from 0 Hz on the left to 1/2
the input sampling rate on the right. <BR>
<BR>
<B>Draw Modes:</B> Select any combination of Time, Frequency, and Amplitude.
<BR>
<P><B>Line Width:</B> The default is two pixel wide lines.<BR>
<BR>
<P>
<B>Color:</B> Toggles between monochrome and color displays.
<BR>
<P>
<B>Log Freq Scale:</B> Toggles between logarithmic and linear frequency scales. <BR>
<P>
<B>Tmesh:</B> Toggles between wire frame and shaded triangle mesh representations of the power spectrum.
<BR><P>
<B>Wheel:</B> Simulate a wheel rolling over a rough surface (represented by
frequency spectrum) under the influence of gravity.
<BR>
<P>
<B>FFT Size:</B> Select the FFT sample size.
<P>
<B>Quit:</B> Exits amesh. (ESC key will also exit)<BR>
<P>
<B>Also Try:</B><BR>
<UL>
<LI>Amesh with your <A target=diag HREF="http://localhost/cgi-bin/Demos/DEMO_execute.cgi?related=amesh&exe=microphone">microphone</A> as input.<BR>
<LI>Amesh with an <A target=diag HREF="http://localhost/cgi-bin/Demos/DEMO_execute.cgi?related=amesh&exe=lineinput">external line source</A> as input.<BR>
<LI>Amesh with an alternate audio file <A target=diag HREF="http://localhost/cgi-bin/Demos/DEMO_execute.cgi?related=amesh&exe=cave">cave.wav</A> as input.<BR>
<LI>Amesh with an alternate audio file <A target=diag HREF="http://localhost/cgi-bin/Demos/DEMO_execute.cgi?related=amesh&exe=fenderfast">fenderFastLoop.wav</A> as input.<BR>
<LI>Amesh with an alternate audio file <A target=diag HREF="http://localhost/cgi-bin/Demos/DEMO_execute.cgi?related=amesh&exe=fenderslow">fenderSlowLoop.wav</A> as input.<BR>
</UL>
<P>
<B>Additional information</B> is available in the <a target=diag href="http://localhost/cgi-bin/Demos/DEMO_man.cgi?demo=amesh"> system man page </A>for amesh.<p>
</TD>
</TR>
</TABLE>
END_DETAILED_INSTRUCTIONS
SYSTEM_REQS:
Audio hardware
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END_HTMLUI
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