--- /dev/null
+/*
+ * Copyright 2006,2008 Free Software Foundation, Inc.
+ *
+ * This file is part of GNU Radio
+ *
+ * GNU Radio is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * GNU Radio is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GNU Radio; see the file COPYING. If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include <dial_tone.h>
+#include <gr_io_signature.h>
+#include <gr_sig_source_f.h>
+#include <audio_alsa_sink.h>
+
+// Shared pointer constructor
+dial_tone_sptr make_dial_tone()
+{
+ return gnuradio::get_initial_sptr(new dial_tone());
+}
+
+// Hierarchical block constructor, with no inputs or outputs
+dial_tone::dial_tone() :
+ gr_top_block("dial_tone")
+{
+ gr_sig_source_f_sptr src0 = gr_make_sig_source_f(48000, GR_SIN_WAVE, 350, 0.1);
+ gr_sig_source_f_sptr src1 = gr_make_sig_source_f(48000, GR_SIN_WAVE, 440, 0.1);
+ audio_alsa_sink_sptr sink = audio_alsa_make_sink(48000);
+
+ connect(src0, 0, sink, 0);
+ connect(src1, 0, sink, 1);
+}