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[Discuss-gnuradio] File source woes
From: |
John Bratteli |
Subject: |
[Discuss-gnuradio] File source woes |
Date: |
Thu, 5 Jul 2007 11:13:45 -0700 (PDT) |
I'm attempting to write a script, based on
usrp_fft.py, that will read a file of gr_complex and
display it. It works, except that it plays back much
faster than it was recorded. For example, I recorded
a five second file and gave it to my script. It
looked to be correct data, but it finished playback in
less than a second. Here's the essential code:
self.input = gr.file_source(gr.sizeof_gr_complex,
options.filename, options.loop)
adc_freq = 64e6 #inherent to USRP
decim_rate = float(options.decim) #whatever decimation
rate used in recording
input_rate = adc_freq / decim_rate
self.scope = fftsink.fft_sink_c(self, panel,
fft_size=1024, sample_rate=input_rate)
self.connect(self.input, self.scope)
self._build_gui(vbox)
*********************************************
Any help would be greatly appreciated.
John Bratteli
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- [Discuss-gnuradio] File source woes,
John Bratteli <=