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<H2>Post-processing the output files</H2>
<B>Tao</B>'s output files are written in raw-floating point format. This means
that they are not immediately playable, but require a further
post-processing step to convert them into a more usable format. This
is achieved with the <CODE>taosf</CODE> command. The general syntax of this
command is:
<P><PRE>
taosf <output_filename>
</PRE>
<P>Where <CODE>output_filename</CODE> is the name of the output file minus the
<CODE>.dat</CODE> extension. This reads the floating point sample data stored
in the output file, normalises it to fit the maximum sample range
available, and adds an appropriate WAV header to the file describing
the number of channels and sample data format.
<P>The reason for <B>Tao</B>'s output files being written in floating point
format is that it is difficult, if not impossible, to know in advance
the amplitudes of the waves in the instruments, especially in cases
where some sort of feedback is present in the system. It is therefore
easier to write the output samples in a format which presents no danger
of overflows (as often happens with CSound) and then normalise these
samples once the performance is finished.
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<tr><td colspan="3" class="addr"><!-- bottom panel --><ADDRESS><FONT SIZE=-1>©1999,2000 Mark Pearson
<A HREF="mailto:m.pearson@ukonline.co.uk">m.pearson@ukonline.co.uk</A> April 30, 2000</ADDRESS><BR></td></tr><!-- end bottom panel --></table></BODY></HTML>
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