1 <?xml version="1.0" encoding="ISO-8859-1"?>
2 <example id="dial_tone_ex"><title>Dial Tone Output</title>
6 from gnuradio import gr
7 from gnuradio import audio
14 src0 = gr.sig_source_f (sampling_freq, gr.GR_SIN_WAVE, 350, ampl)
15 src1 = gr.sig_source_f (sampling_freq, gr.GR_SIN_WAVE, 440, ampl)
16 dst = audio.sink (sampling_freq)
17 fg.connect ((src0, 0), (dst, 0))
18 fg.connect ((src1, 0), (dst, 1))
22 if __name__ == '__main__':
25 raw_input ('Press Enter to quit: ')