Muhammad Abrar wrote: > Now I run this program n my Laptop on whicg gnuradi 3.0.4-2ubuntu2 is > installed and i get following message. > > muhammadab...@ubuntu:~/Documents/usrp$ python usrp_wfm_rcv_pll.py >>>> gr_fir_ccf: using SSE >>>> gr_fir_fff: using SSE >>>> gr_fir_fcc: using SSE > audio_alsa_sink[hw:0,0]: unable to support sampling rate 32000 > card requested 44100 instead. > FYI: This implementation of the stereo_carrier_pll_recovery has no > squelch implementation yet > FYI: No Powermate or Contour Knob found > FYI: This implementation of the stereo_carrier_pll_recovery has no > squelch implementation yet > auauauauauauauauauauauauauauauauauauauauauauauauauauauauauauauauauauauauauauauauauauauauauauauauauauauauauauauauauauauauauauauauauauauauauauauauauauauauauauauauauauauauauaumuhammadab...@ubuntu:~/Documents/usrp$ > >
> audio_alsa_sink[hw:0,0]: unable to support sampling rate 32000 > card requested 44100 instead. This means the your audio_card does not support 32000 Hz samplerate. So you get Audio Underruns (aU) This can be solved by using the commandline parameter -O plughw:0,0 This will use the alsa software resampler to resample the 32000 to 44100 Please use reply-to-all when using the mailinglist. Now I was the only one who got your reply, and not the mailinglist. Greetings, Martin > > 2009/1/27 Martin DvH <gnuradiom...@olifantasia.com > <mailto:gnuradiom...@olifantasia.com>> > > > On Mon, 2009-01-26 at 17:04 +1300, Muhammad Abrar wrote: > > when i run this program ithe following ewrror appears, how can i > resolve this. > > Nameerror: microtune_eval_board is not defined at line 70: > > > > #!/usr/bin/env python > > > > # simple broadcast FM receiver > > > > > > from GnuRadio import * > > > > # > > # return a gr_FlowGraph > > # > > def build_graph (IF_freq): > > input_rate = 20e6 > > > > CFIR_decimate = 125 > > RFIR_decimate = 5 > > fm_demod_gain = 2200 > > > > quad_rate = input_rate / CFIR_decimate > > > > audio_rate = quad_rate / RFIR_decimate > > > > volume = 1.0 > > > > src = GrHighSpeedADCSourceS (input_rate) > > > > # compute FIR filter taps for channel selection > > channel_coeffs = \ > > gr_firdes.low_pass ( > > > > 1.0, # gain > > input_rate, # sampling rate > > 250e3, # low pass cutoff freq > > 8*100e3, # width of trans. band > > gr_firdes.WIN_HAMMING) > > > > # input: short; output: complex > > > > chan_filter = \ > > GrFreqXlatingFIRfilterSCF (CFIR_decimate, > > channel_coeffs, > > IF_freq) > > # input: complex; output: float > > fm_demod = \ > > > > GrQuadratureDemodCF (volume * fm_demod_gain) > > > > # compute FIR filter taps for audio filter > > width_of_transition_band = audio_rate / 32 > > audio_coeffs = \ > > gr_firdes.low_pass ( > > 1.0, # gain > > > > quad_rate, # sampling rate > > audio_rate/2 - width_of_transition_band, > > width_of_transition_band, > > gr_firdes.WIN_HAMMING) > > > > # input: float; output: short > > audio_filter = \ > > > > GrFIRfilterFSF (RFIR_decimate, audio_coeffs) > > > > final_sink = GrAudioSinkS () > > > > fg = gr_FlowGraph () > > > > fg.connect (src, chan_filter) > > fg.connect (chan_filter, fm_demod) > > fg.connect (fm_demod, audio_filter) > > > > fg.connect (audio_filter, final_sink) > > > > return fg > > > > if __name__ == '__main__': > > > > # connect to RF front end > > rf_front_end = microtune_eval_board () > > if not rf_front_end.board_present_p (): > > > > raise IOError, 'RF front end not found' > > > > # set gain and radio station frequency > > rf_front_end.set_AGC (300) > > rf_front_end.set_RF_freq (100.1e6) > > > > IF_freq = rf_front_end.get_output_freq () > > > > fg = build_graph (IF_freq) > > fg.start () # fork thread(s) and return > > raw_input ('Press Enter to quit: ') > > fg.stop () > > > > > You are using a very very old version of gnuradio. > Please update to the current tarball or svn code: > http://gnuradio.org/trac/wiki/Download > http://gnuradio.org/trac/wiki/GettingStarted > > Greetings, > Martin > > -- > > Engr. Muhammad Abrar > > NewZealand > > Mob: 0064211204202 > > Res: 006463586340 > > _______________________________________________ > > Discuss-gnuradio mailing list > > Discuss-gnuradio@gnu.org <mailto:Discuss-gnuradio@gnu.org> > > http://lists.gnu.org/mailman/listinfo/discuss-gnuradio > > > > > -- > Engr. Muhammad Abrar > Massey University Palmerston North > NewZealand > Mob: 0064211204202 > Res: 006463586340 _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio