3 # Copyright 2006 Free Software Foundation, Inc.
5 # This file is part of GNU Radio.
7 # GNU Radio is free software; you can redistribute it and/or modify
8 # it under the terms of the GNU General Public License as published by
9 # the Free Software Foundation; either version 3, or (at your option)
12 # GNU Radio is distributed in the hope that it will be useful,
13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 # GNU General Public License for more details.
17 # You should have received a copy of the GNU General Public License
18 # along with GNU Radio; see the file COPYING. If not, write to
19 # the Free Software Foundation, Inc., 51 Franklin Street,
20 # Boston, MA 02110-1301, USA.
23 from gnuradio import gr
24 from gnuradio import audio
25 from gnuradio.eng_option import eng_option
26 from optparse import OptionParser
28 class my_graph(gr.flow_graph):
31 gr.flow_graph.__init__(self)
33 parser = OptionParser(option_class=eng_option)
34 parser.add_option("-O", "--audio-output",
37 help="audio output device name. E.g., hw:0,0 or /dev/dsp")
38 parser.add_option("-I", "--audio-input",
41 help="audio input device name. E.g., hw:0,0 or /dev/dsp")
42 parser.add_option("-r", "--sample-rate",
45 help="set sample rate to RATE (48000)")
46 (options, args) = parser.parse_args ()
51 sample_rate = int(options.sample_rate)
52 src = audio.source (sample_rate, options.audio_output)
53 dst = audio.sink (sample_rate, options.audio_output)
55 max_chan = max (src.output_signature().max_streams(),
56 dst.output_signature().max_streams())
58 for i in range (max_chan):
59 self.connect ((src, i), (dst, i))
61 if __name__ == '__main__':
64 except KeyboardInterrupt: