Imported Upstream version 3.2.2

[debian/gnuradio] / gnuradio-examples / python / audio / dial_tone_wav.py

diff --git a/gnuradio-examples/python/audio/dial_tone_wav.py b/gnuradio-examples/python/audio/dial_tone_wav.py
new file mode 100755 (executable)
index 0000000..6e87b2a
--- /dev/null
+++ b/gnuradio-examples/python/audio/dial_tone_wav.py
@@ -0,0 +1,61 @@
+#!/usr/bin/env python
+#
+# Copyright 2004,2005,2007,2008 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.
+# 
+
+# GNU Radio example program to record a dial tone to a WAV file
+
+from gnuradio import gr
+from gnuradio.eng_option import eng_option
+from optparse import OptionParser
+
+class my_top_block(gr.top_block):
+
+    def __init__(self):
+        gr.top_block.__init__(self)
+
+       usage = "%prog: [options] filename"
+        parser = OptionParser(option_class=eng_option, usage=usage)
+        parser.add_option("-r", "--sample-rate", type="eng_float", default=48000,
+                          help="set sample rate to RATE (48000)")
+       parser.add_option("-N", "--samples", type="eng_float", default=None,
+                         help="number of samples to record")
+        (options, args) = parser.parse_args ()
+        if len(args) != 1 or options.samples is None:
+            parser.print_help()
+            raise SystemExit, 1
+
+        sample_rate = int(options.sample_rate)
+        ampl = 0.1
+
+        src0 = gr.sig_source_f (sample_rate, gr.GR_SIN_WAVE, 350, ampl)
+        src1 = gr.sig_source_f (sample_rate, gr.GR_SIN_WAVE, 440, ampl)
+       head0 = gr.head(gr.sizeof_float, int(options.samples))
+       head1 = gr.head(gr.sizeof_float, int(options.samples))
+       dst = gr.wavfile_sink(args[0], 2, int(options.sample_rate), 16)
+
+        self.connect(src0, head0, (dst, 0))
+        self.connect(src1, head1, (dst, 1))
+
+if __name__ == '__main__':
+    try:
+        my_top_block().run()
+    except KeyboardInterrupt:
+        pass