def __init__(self, audio_input_dev):
gr.hier_block2.__init__(self, "audio_rx",
gr.io_signature(0, 0, 0), # Input signature
gr.io_signature(0, 0, 0)) # Output signature
sample_rate = 44100
src = audio.source(sample_rate, audio_input_dev)
src_scale = gr.multiply_const_ff(32767)
f2s = gr.float_to_short()
voice_coder = gsm_full_rate.encode_sp()
self.packets_from_encoder = gr.msg_queue()
packet_sink = gr.message_sink(33, self.packets_from_encoder, False)
self.connect(src, src_scale, f2s, voice_coder, packet_sink)
def build_graph():
fg = gr.flow_graph()
src = audio.source(8000)
src_scale = gr.multiply_const_ff(32767)
f2s = gr.float_to_short ()
enc = gsm_full_rate.encode_sp()
dec = gsm_full_rate.decode_ps()
s2f = gr.short_to_float ()
sink_scale = gr.multiply_const_ff(1.0/32767.)
sink = audio.sink(8000)
fg.connect(src, src_scale, f2s, enc, dec, s2f, sink_scale, sink)
return fg
def __init__(self, audio_input_dev):
gr.hier_block2.__init__(self, "audio_rx",
gr.io_signature(0, 0, 0), # Input signature
gr.io_signature(0, 0, 0)) # Output signature
sample_rate = 8000
src = audio.source(sample_rate, audio_input_dev)
src_scale = gr.multiply_const_ff(32767)
f2s = gr.float_to_short()
voice_coder = gsm_full_rate.encode_sp()
self.packets_from_encoder = gr.msg_queue()
packet_sink = gr.message_sink(33, self.packets_from_encoder, False)
self.connect(src, src_scale, f2s, voice_coder, packet_sink)
def build_graph():
tb = gr.top_block()
src = audio.source(8000)
src_scale = gr.multiply_const_ff(32767)
f2s = gr.float_to_short()
enc = gsm_full_rate.encode_sp()
dec = gsm_full_rate.decode_ps()
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
