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<H2>
shaker</H2>
<PRE> ar <B>shaker</B> kamp, kfreq, kbeans, kdamp, knum, ktimes[, idecay]</PRE>
<PRE>
<HR></PRE>
<H4>
<U>DESCRIPTION</U></H4>
Audio output is a tone related to the shaking of a maraca orsimilar gourd
instrument. The method is a physically inspired model developed from
Perry Cook, but re-coded for Csound.
<BR>
<BR>
<H4>
<U>INITIALIZATION</U></H4>
<I>idecay - </I>If present indicates for how long at the end of the note
the shaker is to be damped. The default value is zero.
<BR>
<H4>
<U>PERFORMANCE</U></H4>
<BR>A note is played on a maraca-like instrument, with the arguments as
below.
<P><I>kamp</I> - Amplitude of note.
<P><I>kfreq</I> - Frequency of note played.
<P><I>kbeans - </I>The number of beans in the gourd. A value of 8
seems suitable,
<P><I>kdamp -- </I>The damping vsalue of the shaker. Values of 0.98
to 1 seems suitable, with 0.99 a reasonable default.
<P><I>knum -- </I>The number of shakes of the gourd. Values over
64 are considered infinite.
<P><I>ktimes -- </I>Number of times shaken.
<BR>
<BR>
<H4>
<U>EXAMPLE:</U></H4>
<PRE>a1 <B>shaker</B> 31129.60, 440, 8, 0.999, 0, 100, 0
<B>outs</B> a1, a1</PRE>
<H4>
<U>AUTHOR:</U></H4>
John ffitch
<BR>University of Bath, Codemist Ltd.
<BR>Bath, UK
<BR>1997
<BR>
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