X-Git-Url: https://scm.cri.ensmp.fr/git/Faustine.git/blobdiff_plain/1059e1cc0c2ecfa237406949aa26155b6a5b9154..66f23d4fabf89ad09adbd4dfc15ac6b5b2b7da83:/interpreter/preprocessor/faust-0.9.47mr3/documentation/faust-quick-reference-src/images/noise.dsp
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+declare name "Noise";
+declare version "1.1";
+declare author "Grame";
+declare license "BSD";
+declare copyright "(c)GRAME 2009";
+
+
+//-----------------------------------------------------------------
+// Noise generator and demo file for the Faust math documentation
+//-----------------------------------------------------------------
+
+
+
+\section{Presentation of the "noise.dsp" Faust program}
+This program describes a white noise generator with an interactive volume, using a random function.
+
+\subsection{The random function}
+The \texttt{random} function describes a generator of random numbers, which equation follows. You should notice hereby the use of an integer arithmetic on 32 bits, relying on integer wrapping for big numbers.
+random
+
+\subsection{The noise function}
+The white noise then corresponds to:
+noise
+
+
+random = +(12345)~*(1103515245);
+noise = random/2147483647.0;
+
+
+\subsection{Just add a user interface element to play volume!}
+Endly, the sound level of this program is controlled by a user slider, which gives the following equation:
+process
+
+
+
+\section{Block-diagram schema of process}
+This process is illustrated on figure 1.
+process
+
+
+process = noise * vslider("Volume[style:knob]", 0, 0, 1, 0.1);
+
+
+\section{Notice of this documentation}
+You might be careful of certain information and naming conventions used in this documentation:
+
+
+\section{Listing of the input code}
+The following listing shows the input Faust code, parsed to compile this mathematical documentation.
+
+