BasicDSP is an educational tool that makes it easy to experiment with simple

Digital Signal Processing algorithms for audio signals. The input can either
be taken from the sound card, or be a locally generated sine wave, white noise
or impulse signal. The output is fed to the sound card, as well as to a virtual
oscilloscope and spectrum analyzer.

cad/Makefile

@@ -9,6 +9,7 @@
     SUBDIR += astk-client
     SUBDIR += astk-serveur
     SUBDIR += atlc
+    SUBDIR += basicdsp
     SUBDIR += brlcad
     SUBDIR += calculix
     SUBDIR += cascade

cad/basicdsp/Makefile

@@ -0,0 +1,34 @@
+# New ports collection makefile for:	basicdsp
+# Date created:				4 August 2008
+# Whom:					Diane Bruce <db@db.net>
+#
+# $FreeBSD$
+#
+
+PORTNAME=	basicdsp
+PORTVERSION=	1.0
+CATEGORIES=	cad hamradio
+MASTER_SITES=	http://wwwhome.cs.utwente.nl/~ptdeboer/ham/basicdsp/ \
+		${MASTER_SITE_LOCAL}
+MASTER_SITE_SUBDIR=	db
+EXTRACT_SUFX=	.tgz
+
+MAINTAINER=	db@FreeBSD.org
+COMMENT=	A program for experimenting with simple audio DSP algorithms
+
+USE_DOS2UNIX=	yes
+USE_WX=		2.6+
+WX_UNICODE=	yes
+WX_COMPS=	wx wx:build wx:run
+
+PLIST_FILES=	bin/basicdsp
+MAN1=		basicdsp.1
+
+post-patch:
+	@${REINPLACE_CMD} -e 's|%%WX_CONFIG%%|${WX_CONFIG}|g' ${WRKSRC}/Makefile
+
+do-install:
+	${INSTALL_MAN}	${FILESDIR}/basicdsp.1 ${MANPREFIX}/man/man1/basicdsp.1
+	${INSTALL_PROGRAM}	${WRKSRC}/basicdsp ${PREFIX}/bin/
+
+.include <bsd.port.mk>

cad/basicdsp/distinfo

@@ -0,0 +1,3 @@
+MD5 (basicdsp-1.0.tgz) = 2d7f0f1c56a3398657b876f20c2a5311
+SHA256 (basicdsp-1.0.tgz) = ca2f2c22bd2974fc9dd8bbc1791630bf533f1c739e834926b9aa7e99edb485f7
+SIZE (basicdsp-1.0.tgz) = 56542

cad/basicdsp/files/basicdsp.1

@@ -0,0 +1,41 @@
+.Dd June 16, 2008
+.Os Unix
+.Dt basicdsp 1
+.Sh NAME
+.Nm basicdsp
+.Nd DSP demonstration program
+.Sh SYNOPSIS
+A program for experimenting with simple audio DSP algorithms.
+.Sh DESCRIPTION
+.Pp
+BasicDSP is a program to apply simple Digital Signal Processing algorithms
+to audio signals. The input can either be taken from the sound card, or
+be a locally generated sine wave, white noise or impulse signal. The output
+is fed to the sound card, as well as to a virtual oscilloscope and spectrum
+analyzer.
+.Pp
+The DSP algorithm itself is specified in a very straightforward programming
+language which has only assignment statements (and on unix a print statement).
+Each line contains one statement, and all lines are executed once for each
+incoming sample. The input sample is available in variables named 'in',
+'inl' (left channel) and 'inr' (right channel). The program should write the
+output into variables named 'out', 'outl' and/or 'outr'.
+Here's a simple example program:
+
+  a = a + slider1 * (in - a)
+  outl = a
+  outr = fir(in, 0.1, 0.3, 0.3, 0.1)
+.Pp
+This illustrates defining new variables ('a' in the example), the use of
+the sliders, and the use of a built-in function like fir().
+The help-menu gives access to a complete list of built-in variables and
+functions.
+.Pp
+Note: the program was originally written to accompany a series of articles
+on Software-Defined Radio appearing in the Dutch amateur radio journal
+\'Electron\'. Another tutorial appeared in the December 2007 issue of SPRAT.
+.Sh PROJECT WEBSITE, DOCUMENTATION
+http://wwwhome.cs.utwente.nl/~ptdeboer/ham/basicdsp/
+.Pp
+.Sh AUTHORS
+Pieter-Tjerk de Boer, Niels A. Moseley

cad/basicdsp/files/patch-Makefile

@@ -0,0 +1,17 @@
+--- Makefile.orig	2007-12-02 17:18:59.000000000 -0500
++++ Makefile	2008-08-14 10:13:05.000000000 -0400
+@@ -1,5 +1,5 @@
+-CXXFLAGS	= -O9 -g -Wall `wx-config --cxxflags` -g -Wall -pg
+-LDFLAGS	= `wx-config --libs` -lm -g -pg
++CXXFLAGS	+= -Wall `%%WX_CONFIG%% --cxxflags --unicode=yes` 
++LDFLAGS	= `%%WX_CONFIG%% --libs --unicode=yes` -lm 
+ 
+ OBJS 	= 	aboutdialog.o book.o core.o displayslider.o graphframe.o gui.o linux.o vu_meter.o spectrumplot.o fft4g.o wav_streamer.o
+ 
+@@ -11,5 +11,5 @@
+ 	./mkhelp > help.h
+ 
+ basicdsp:	help.h $(OBJS)
+-	g++ $(LDFLAGS) $(OBJS) -o basicdsp
++	${CXX} $(LDFLAGS) $(OBJS) -o basicdsp
+ 

cad/basicdsp/files/patch-aboutdialog.cpp

@@ -0,0 +1,11 @@
+--- aboutdialog.cpp.orig	2008-08-16 23:33:09.000000000 -0400
++++ aboutdialog.cpp	2008-08-16 23:34:13.000000000 -0400
+@@ -29,7 +29,7 @@
+   // to clean this up would mean patching wxWidgets :(
+   splash_xpm = new wxImage(basicdsp_splash_xpm);
+   if (splash_xpm != NULL) 
+-    splash_bitmap = new wxBitmap(splash_xpm);
++    splash_bitmap = new wxBitmap((const wxImage&)splash_xpm);
+ 
+   if ((splash_bitmap!=NULL) && (splash_bitmap->Ok()))
+   {

cad/basicdsp/files/patch-book.cpp

@@ -0,0 +1,14 @@
+--- book.cpp.orig	2008-08-16 23:28:51.000000000 -0400
++++ book.cpp	2008-08-16 23:31:02.000000000 -0400
+@@ -30,6 +30,11 @@
+ {
+ }
+ 
++int wxBook::ChangeSelection(size_t n)
++{
++  return n;
++}
++
+ int wxBook::SetSelection(size_t n)
+ {
+   int old_selected = m_selected;

cad/basicdsp/files/patch-book.h

@@ -0,0 +1,10 @@
+--- book.h.orig	2008-08-16 23:28:06.000000000 -0400
++++ book.h	2008-08-16 23:29:07.000000000 -0400
+@@ -27,6 +27,7 @@
+   virtual int GetSelection() const { return m_selected;};
+   virtual wxSize CalcSizeFromPage(const wxSize& sizePage) const;
+ 
++  virtual int ChangeSelection(size_t n);
+   virtual int SetSelection(size_t n);
+ 
+   // the same as AddPage(), but adds the page at the specified position

cad/basicdsp/files/patch-gui.cpp

@@ -0,0 +1,12 @@
+--- gui.cpp.orig	2008-08-16 23:38:20.000000000 -0400
++++ gui.cpp	2008-08-16 23:38:29.000000000 -0400
+@@ -631,6 +631,9 @@
+ #endif
+ }
+ 
++#ifndef wxHIDE_READONLY
++#define wxHIDE_READONLY 0
++#endif
+ 
+ void MyFrame::OnOpen(wxCommandEvent& WXUNUSED(event))
+ {

cad/basicdsp/pkg-descr

@@ -0,0 +1,7 @@
+BasicDSP is an educational tool that makes it easy to experiment with simple
+Digital Signal Processing algorithms for audio signals. The input can either
+be taken from the sound card, or be a locally generated sine wave, white noise
+or impulse signal. The output is fed to the sound card, as well as to a virtual
+oscilloscope and spectrum analyzer. 
+
+WWW:	http://wwwhome.cs.utwente.nl/~ptdeboer/ham/basicdsp/