I tried to execute usrp_wfm_rcv.py. But some errors occured :
address@hidden:~/gnuradio/gr-uhd/examples$ sudo python usrp_wfm_rcv.py
linux; GNU C++ version 4.6.1; Boost_104601; UHD_003.004.000-f592102
-- Opening a USRP1 device...
-- Using FPGA clock rate of 64.000000MHz...
>>> gr_fir_ccf: using SSE
>>> gr_fir_fff: using SSE
audio_alsa_sink[hw:0,0]: unable to support sampling rate 32000
card requested 44100 instead.
audio_alsa_sink[hw:0,0]: set_period_time_near failed: Invalid argument
Traceback (most recent call last):
File "usrp_wfm_rcv.py", line 285, in <module>
app = stdgui2.stdapp (wfm_rx_block, "USRP WFM RX")
File "/usr/local/lib/python2.7/dist-packages/gnuradio/wxgui/stdgui2.py", line 37, in __init__
wx.App.__init__(self, redirect=False)
File "/usr/lib/python2.7/dist-packages/wx-2.8-gtk2-unicode/wx/_core.py", line 7978, in __init__
self._BootstrapApp()
File "/usr/lib/python2.7/dist-packages/wx-2.8-gtk2-unicode/wx/_core.py", line 7552, in _BootstrapApp
return _core_.PyApp__BootstrapApp(*args, **kwargs)
File "/usr/local/lib/python2.7/dist-packages/gnuradio/wxgui/stdgui2.py", line 40, in OnInit
frame = stdframe (self.top_block_maker, self.title, self._nstatus)
File "/usr/local/lib/python2.7/dist-packages/gnuradio/wxgui/stdgui2.py", line 61, in __init__
self.panel = stdpanel (self, self, top_block_maker)
File "/usr/local/lib/python2.7/dist-packages/gnuradio/wxgui/stdgui2.py", line 82, in __init__
self.top_block = top_block_maker (frame, self, vbox, sys.argv)
File "usrp_wfm_rcv.py", line 107, in __init__
False) # ok_to_block
File "/usr/local/lib/python2.7/dist-packages/gnuradio/audio/audio_swig.py", line 345, in sink
return _audio_swig.sink(*args, **kwargs)
RuntimeError: audio_alsa_sink
To correct the audio_alsa_sink[hw:0,0]: unable to support sampling rate 32000
card requested 44100 instead. error , I change the
usrp_wfm_rcv.py line 84 which is : " audio_rate = 32e3 " with "
audio_rate = 44.1e3 " . Then the sampling rate problem was solved. But
the others didn't change. How can I fix this ??