diff options
Diffstat (limited to 'gr-vocoder/examples/g723_24_audio_loopback.py')
-rwxr-xr-x | gr-vocoder/examples/g723_24_audio_loopback.py | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/gr-vocoder/examples/g723_24_audio_loopback.py b/gr-vocoder/examples/g723_24_audio_loopback.py new file mode 100755 index 000000000..f125282dc --- /dev/null +++ b/gr-vocoder/examples/g723_24_audio_loopback.py @@ -0,0 +1,45 @@ +#!/usr/bin/env python +# +# Copyright 2011 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 +from gnuradio import vocoder + +def build_graph(): + tb = gr.top_block() + src = audio.source(8000) + src_scale = gr.multiply_const_ff(32767) + f2s = gr.float_to_short () + enc = vocoder.g723_24_encode_sb() + dec = vocoder.g723_24_decode_bs() + s2f = gr.short_to_float () + sink_scale = gr.multiply_const_ff(1.0/32767.) + sink = audio.sink(8000) + tb.connect(src, src_scale, f2s, enc, dec, s2f, sink_scale, sink) + return tb + +if __name__ == '__main__': + tb = build_graph() + tb.start() + raw_input ('Press Enter to exit: ') + tb.stop() + tb.wait() |