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#!/usr/bin/env python
#
# Copyright 2004,2007 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.
#
from gnuradio import gr
from gnuradio import audio
def build_graph ():
sampling_freq = 32000
ampl = 0.1
tb = gr.top_block ()
src0 = gr.sig_source_f (sampling_freq, gr.GR_SIN_WAVE, 350, ampl)
src1 = gr.sig_source_f (sampling_freq, gr.GR_SIN_WAVE, 440, ampl)
dst = audio.sink (sampling_freq)
tb.connect (src0, (dst, 0))
tb.connect (src1, (dst, 1))
return tb
if __name__ == '__main__':
tb = build_graph ()
tb.start ()
raw_input ('Press Enter to quit: ')
tb.stop ()
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