Re: [Discuss-gnuradio] new to GNUradio: AFSK and codec2 gmsk modem

[Kristoff Bonne]

Tom,


(inline comments)


On 29-07-13 17:01, Tom Rondeau wrote:
> On Mon, Jul 29, 2013 at 5:48 AM, Kristoff Bonne<address@hidden>  wrote:
> > > Just found this, it might help:
> > > https://github.com/dl1ksv/gr-afsk
> > Hmmm. Looks interesting. A good start. :-)
> >
> >
> > However, it seams I have another problem: it does not build on my system
> > (ubuntu 12.04 LTS).
> > It needs gnuradio-runtime and as I currently run gnuradio 3.6.4.1 + Boost
> > 1.49 build from source, it doesn't have that.
> >
> > I tried to build 3.7.1 -which seams to include gnuradio-runtime in its
> > source- but that fails on a number of tests (qa_fir_filter,
> > qa_freq_xlating_fir_filter, qa_constellation_receiver and
> > qa_codec2_vocoder).
> >
> > Grrr! :-(
> Those QA failures are probable a Volk issue. Try running volk_profile
> after you run 'make install'. If a given kernel fails for an
> architecture, it will be disabled. Once volk_profile completes (it can
> take a while), try rerunning 'make test'.
Good news and bad news.

First test: to run volk_profile without doing the "make install" (I did 
not want to install something where the "make tests" indicated is wasn't 
100 % OK). Same result as before. "make test" still gives 4 errors.

2nd test:  ran "sudo make install" anyway, then volk_profile and then 
"make test":
Good news and bad news.
3 tests are now OK, only the codec2 vocoder still fails.


--- cut here --- cut here --- cut here --- cut here --- cut here ---
The following tests FAILED:
    168 - qa_codec2_vocoder (Failed)
Errors while running CTest
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> If it still fails, run
> 'ctest -V -R volk' and send us the output.
Is now OK:
--- cut here --- cut here --- cut here --- cut here --- cut here ---
1: *** No errors detected
1/1 Test #1: qa_volk_test_all .................   Passed    0.92 sec

The following tests passed:
    qa_volk_test_all

100% tests passed, 0 tests failed out of 1
--- cut here --- cut here --- cut here --- cut here --- cut here ---


What is strange is that I do get an error when I do this test on the 
codec2 vocoder block:
--- cut here --- cut here --- cut here --- cut here --- cut here ---

168: Test command: /bin/sh 
"/home/kristoff/ham/gnuradio/gnuradio-3.7.0/build/gr-vocoder/python/vocoder/qa_codec2_vocoder_test.sh"
168: Test timeout computed to be: 9.99988e+06
168: F
168: ======================================================================
168: FAIL: test001_module_load (__main__.test_codec2_vocoder)
168: ----------------------------------------------------------------------
168: Traceback (most recent call last):
168:   File 
"/home/kristoff/ham/gnuradio/gnuradio-3.7.0/gr-vocoder/python/vocoder/qa_codec2_vocoder.py", 
line 54, in test001_module_load
168:     self.assertEqual(expected_data, actual_result)
168: AssertionError: Tuples differ: (0, 0, 0, 3, 2, 0, 1, 5, 6, 7,... != 
(0, 0, 0, 3, 2, 0, 1, 5, 6, 7,...
168:
168: First differing element 112:
168: 24
168: 25
--- cut here --- cut here --- cut here --- cut here --- cut here ---

Am I correct to assume that the errors means there is a difference 
between what it actually gets back from the module based on a 
test-pattern and what is expects.
Is this related to the volt-libraries that produce a different result on 
my particular test.


But I must say that there does is quite a difference between the test in 
gnuradio 3.6.4.1. and 3.7.0

All the stuff about "data" and "expected data" are simply not present in 
the test-script in 3.6.4.1.

Perhaps the thing here is that the script for 3.6.4.1. simply does not 
do this "compair with what we expect" test and it might be that this 
codec2 library is just as wrong on 3.6.4.1 as in 3.7.0


Both versions I have are build with boost 1.49; as described in 
README.building-boost

I can try with newer versions of boost; but I must say that when using 
Boost 1.54, GNUradio doesn't even compile on my box.


What is the recommended version of boost to be used with gnuradio 3.7.0 ?


> What's your processor?
The machine is a dell laptop. The CPU is a quad-core "Intel(R) Core(TM) 
i5 CPU       M 520  @ 2.40GHz"
(which is a bit strange as the wikipedia says the 520m is supposed to be 
dual-core).


> Tom
Cheerio!
Kr. Bonne