date:20170221

Re: [Discuss-gnuradio] GNU Radio Companion - ALSA

2017-02-21 Thread Cinaed Simson

On 02/21/2017 04:20 AM, Robin A. Jensen wrote:
> Hello Cinaed.
> 
> It's (maybe) because X GUI is startet up on RPi and i'm connectet with a
> VNC-Client.
> But anyway, i got it to work by taking Rationel Resampler out of the
> chain and then cheat with the Sample Rate.
> So now:
> RTL-SDR Source: Samp_Rate: 2M ->
> Low Pass: Samp_rate: 1.92 M, decimation:4 ->
> WBFM: Quadrature: 480K, Demation: 10 ->
> Audio_Sink: 48K, 2 Channels.
> 
> And now it run and play with a overrun.
> 
> :-)

Did you try setting it to "mono" with

  /usr/bin/pavucontrol

?

Also, type

  aplay -l

it will give you the physical devices.

If I use hw:0,0 - the analog device - I get audio overruns for WBFM
sampling from 10 MHz all the way down to 1 MHz with the HackRF.

If I use hw:0,1 - the HDMI device - I can run the WBFM receiver at 10
MHz on the HackRF without any overruns.

Note, the HDMI device only worked with "mono". I didn't remember to test
using the analog device with "mono".

And you need HDMI monitor (or a cable from HDMI to VGA/audio for $10.)

Something is screwy.

-- Cinaed


> 
> Best regards
> Robin.
> 
> 
> Den 20-02-2017 kl. 22:05 skrev Cinaed Simson:
>> On 02/20/2017 07:31 AM, Robin A. Jensen wrote:
>>> Hello Cinaed
>>>
>>> Thank you for your interrest in the proble,
>>>
>>> When using GRC i been trying by VNCserver and directly on the pi in GUI
>>> (X11).
>>> This is what ps -ef | grep pulse audio shows
>>> pi 855 1  0 Feb19 ?00:00:00 /bin/sh
>>> /usr/bin/start-pulseaudio-x11
>>> pi1203 1  0 Feb19 ?00:00:00 /bin/sh
>>> /usr/bin/start-pulseaudio-x11
>>> pi3959  3941  0 16:24 pts/000:00:00 grep --color=auto pulse
>> That's odd - 2 copies of /usr/bin/start-pulseaudio-x11 running at the
>> same time?
>>
>>> But still:
>>> When using a signal source directly to the audio sink it will work.
>>> But if i put in Rationel Resampler, there will be no sound or a
>>> RuntimeError, if resampler interpolation is not set to 48K.
>>> So i.e. source = 480k and resampler decimate with 480 (=1000) and
>>> interpolation is set to 48 (=48000), it will create an error.
>>> It's very strange.
>> I just installed the raspbian version of gnuradio - version 3.7.4 -  on
>> my raspberry pi3.
>>
>> There were no runtime errors with the audio while logged into the
>> console.
>>
>> In fact, the audio works if I just leave the audio device blank.
>>
>> If you think it might be related to stereo, you an use
>>
>>/usr/bin/pavucontrol
>>
>> and change the audio device to mono.
>>
>> I can run a python script from a SSH connection on an Intel machine and
>> the audio works
>>
>> However, if I connect from an ARM machine, the audio doesn't work - I
>> get runtime errors.
>>
>> Using VNC from Windows, your mileage may vary - but it doesn't appear to
>> be gnuradio issue.
>>
>> The only suggestion I have is to turn off Qt/WX in the flow graph and
>> try running only the python code.
>>
>> Otherwise, post your flow chart to mailing list and I'll try in on my
>> pi3.
>>
>> -- Cinaed
>>
>>> Best regards
>>> Robin.
>>>
>>>
>>> Den 20-02-2017 kl. 01:33 skrev Cinaed Simson:
 My guess is you have pulse audio installed but it won't let you use the
 audio devices because you're not logged into the console on the pi3.

 Type

 ps -ef | grep pulse

 which should return entries similar to

 /usr/bin/pulseaudio --start --log-target=syslog
 /bin/sh /usr/bin/start-pulseaudio-x11

 Note, if pulse-audio is the problem, then you need to log into the
 console and change your audio device to 'pulse' before trying it again.

 -- Cinaed


 On 02/19/2017 12:17 PM, Robin A. Jensen wrote:
> Hello Marcus.
>
> I've haven't copy  pasted!
> I made it from a tutorial and it will work on Window 10 machine. :-)
>
> Now i have tried your suggestion and the RuntimeError is till persist.
> But you lost min the part, about moving the resampler in front of
> WBFM.
> I did it and the Runtime error is still presentet.
>
> But i'm sure that there is a bug in the debian versin of GNU Radio
> Companion 3.7.5 when using Rationel Resampler.
> It's making no sense. I have understood the concept of Decimating and
> Interpolation.
> I now have done some test with exactly the same simple setup on
> Windows
> 10 and RPi 3 Jessie.
> On Windows:
> Souce: resample 480 k Waveform: Cosine, Freq: 1k->
> Rationel Resampler: Decimation 480 (= 1000), Interpolation 48
> (=48.000) ->
> Audio Sink: Sample Rate: 48k
>
> It will produce a tone of 1 KHz.
>
> Doing precise the same on RPi 3:
> RuntimeError: audio_alsa_sink
> Only when Rationel Resampler is set to: Interpolation 48000,
> It will run, but if Decimation is 480 (= 1000 -> 1000 * 48000) it will
> sound like a metronome!
> If i'll set it as it should be: Decimation: 4800 (=1000) and

Re: [Discuss-gnuradio] volk compile error on raspberry pi3

2017-02-21 Thread Cinaed Simson

Hi Michael - it worked. Thanks!

I upgraded Raspbian Jessie to Debian Jessie and was able to install
gnuradio 3.7.10.1 from source.

The CFLAGS at that URL are for pi2 - for the pi3 I used

  CFLAGS="-march=armv8-a -mtune=cortex-a53 -mfloat-abi=hard
-mfpu=neon-vfpv4 -O2"

but

  CFLAGS="-march=armv8-a -mtune=cortex-a53"

will work too - as well as not setting CFLAGS.

-- Cinaed


On 02/20/2017 02:01 PM, Michael Dickens wrote:
> Hi Cinaed - Check out < https://brmlab.cz/user/jenda/rpi-gcc >. - MLD
> 
> On Mon, Feb 20, 2017, at 03:36 PM, Cinaed Simson wrote:
>> Any know if the following bug has been resolved?
>>
>> It appears this bug has existed since the first pi was released.
>>
>> Anyone know if a patch exists?
>>
>> I did install version 3.7.4 supported by the Raspbian OS but I'm running
>> the latest firmware on my devices it causes them to stutter - stop and
>> go - causing under flows and over flows.
>>
>> The devices work perfectly outside of gnuradio 3.7.4.
>>
>> Rumor has it the pi's don't support sbfx.
>>
>> Error:
>>
>> /opt/gnuradio/src/gnuradio-3.7.10.1/volk/kernels/volk/asm/neon/volk_32f_x2_dot_prod_32f_neonasm_opts.s:46:
>> Error: selected processor does not support ARM mode `sbfx r11,r1,#2,#1'
>>
>> gcc (Raspbian 4.9.2-10) 4.9.2
>> g++ (Raspbian 4.9.2-10) 4.9.2
>> GNU assembler (GNU Binutils for Raspbian) 2.25
> 


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[Discuss-gnuradio] GSL_FOUND both TRUE and FALSE

2017-02-21 Thread Achilleas Anastasopoulos

Hi all,

after a long time update from source on a Fedora 23 I came across the
following problem when cmaking:

-- Configuring gr-fec support...
--   Dependency ENABLE_VOLK = ON
--   Dependency Boost_FOUND = 1
--   Dependency ENABLE_GNURADIO_RUNTIME = ON
--   Dependency ENABLE_GR_BLOCKS = ON
--   Dependency GSL_FOUND = TRUE <
--   Enabling gr-fec support.
--   Override with -DENABLE_GR_FEC=ON/OFF
-- Checking for module 'fftw3f >= 3.0'
--   Found fftw3f , version 3.3.4
-- Found FFTW3F: /lib64/libfftw3f.so

but then

-- Configuring gr-dtv support...
--   Dependency Boost_FOUND = 1
--   Dependency GSL_FOUND = FALSE  <
--   Dependency ENABLE_GNURADIO_RUNTIME = ON
--   Dependency ENABLE_GR_ANALOG = ON
--   Dependency ENABLE_GR_FILTER = ON
--   Dependency ENABLE_GR_FEC = ON
--   Disabling gr-dtv support.
--   Override with -DENABLE_GR_DTV=ON/OFF
-- Could NOT find GSL (missing:  GSL_INCLUDE_DIRS GSL_LIBRARY_DIRS)
--
-- Configuring gr-atsc support...
--   Dependency Boost_FOUND = 1
--   Dependency GSL_FOUND = FALSE   <
--   Dependency ENABLE_GNURADIO_RUNTIME = ON
--   Dependency ENABLE_GR_FFT = ON
--   Dependency ENABLE_GR_BLOCKS = ON
--   Dependency ENABLE_GR_FEC = ON
--   Dependency ENABLE_GR_FILTER = ON
--   Dependency ENABLE_GR_ANALOG = ON
--   Disabling gr-atsc support.
--   Override with -DENABLE_GR_ATSC=ON/OFF

--
-- Configuring gr-wavelet support...
--   Dependency Boost_FOUND = 1
--   Dependency ENABLE_GNURADIO_RUNTIME = ON
--   Dependency ENABLE_GR_BLOCKS = ON
--   Dependency ENABLE_GR_ANALOG = ON
--   Dependency GSL_FOUND = FALSE  <
--   Disabling gr-wavelet support.
--   Override with -DENABLE_GR_WAVELET=ON/OFF
--

and so the packages

--   * gr-dtv
--   * gr-atsc
--   * gr-wavelet

are not being built.

BTW: I have gsl and gsl-devel installed (version 1.16-17)

Can anyone give me a hint as to what may be wrong here?

thanks
Achilleas
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[Discuss-gnuradio] [GRCon17] Call for Presentations & Papers

2017-02-21 Thread Ben Hilburn

Hey all -

The CFP for GRCon17 is now live! You can find the details on the GRCon17
website:
http://gnuradio.org/grcon-2017/submit/

We are accepting abstracts for three types of presentations at GRCon17:
talks, tutorials, and posters. The format for the poster presentations will
change somewhat this year, as there will be scheduled poster session times
during the conference.

The deadline to submit your presentation abstract is *Thursday 1 June. *

In addition, we are very excited to once again publish the Annual Technical
Proceedings of the GNU Radio Conference. The proceedings of GRCon are
published on the GNU Radio website (http://pubs.gnuradio.org/), and are
also indexed by Google Scholar. Last year's proceedings have some truly
excellent contributions to the field, and we look forward to seeing this
year's papers.

*You do not need to publish in the proceedings to give a talk at GRCon, and
you do not need to give a talk at GRCon to publish in the proceedings.* We
encourage everyone giving a talk to also submit a paper, and anyone
submitting a paper to also give a talk, but it is not required. We do this
to so that people with important contributions to publish, but who are
unable to make it to the conference, can still participate.

We take pride in GRCon's reputation for having a high signal-to-noise
ratio, and our growing attendance is testament to the high quality of
people and content at the conference each year . This is only possible with
your participation, and we look forward to seeing you at the conference!
Please let us know if you have any questions.

Cheers,
The GRCon Organizers
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Re: [Discuss-gnuradio] Gunradio on RHEL6

2017-02-21 Thread Neel Pandeya

I would strongly suggest that you use RHEL/CentOS 7 instead, as RHEL/CentOS
6 is quite old now, and the default versions of many packages are old or
obsolete.

--Neel Pandeya



On 21 February 2017 at 08:13, Sumit Saluja  wrote:

>
> HI All,
>
> I have compiled gnuradio on RHEL6 I am able compile gnuradio but some of
> the components are disabled
> * sphinx
> --   * gr-ctrlport
> --   * gr-comedi
> --   * gr-qtgui
> --   * gr-uhd
> --   * gr-video-sdl
> --   * gr-wxgui
> --   * gr-zeromq
>
> How can I enable them  ?
>
> Thanks
> Sumit Saluja
>
> ___
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Re: [Discuss-gnuradio] Gunradio on RHEL6

2017-02-21 Thread Kyeong Su Shin

Dear Sumit Saluja:

It is usually because your system have unmet dependencies (or because cmake
failed to detect the libraries, even though they were actually installed).

You have to check the cmake log and install missing dependencies.
Alternatively, you can try PyBombs if it is for your personal use (I never
really used PyBombs, so I really cannot give much info about that, though).

Regards,
Kyeong Su Shin

On Tue, Feb 21, 2017 at 8:13 AM, Sumit Saluja  wrote:

>
> HI All,
>
> I have compiled gnuradio on RHEL6 I am able compile gnuradio but some of
> the components are disabled
> * sphinx
> --   * gr-ctrlport
> --   * gr-comedi
> --   * gr-qtgui
> --   * gr-uhd
> --   * gr-video-sdl
> --   * gr-wxgui
> --   * gr-zeromq
>
> How can I enable them  ?
>
> Thanks
> Sumit Saluja
>
> ___
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>
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[Discuss-gnuradio] Gunradio on RHEL6

2017-02-21 Thread Sumit Saluja


HI All,

I have compiled gnuradio on RHEL6 I am able compile gnuradio but some of the 
components are disabled 
* sphinx
--   * gr-ctrlport
--   * gr-comedi
--   * gr-qtgui
--   * gr-uhd
--   * gr-video-sdl
--   * gr-wxgui
--   * gr-zeromq

How can I enable them  ?

Thanks
Sumit Saluja

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Re: [Discuss-gnuradio] Receiving streaming data by external application

2017-02-21 Thread Marcus Müller

Hi Mehmeto,

I'd argue you're looking at the best example :)

But: gr-zmq comes with more examples in gnuradio/gr-zeromq/examples . If
you're on linux, these get typically installed to
/usr[/local]/share/gnuradio/examples/zeromq

Also, you posted this question twice (no harm done); I'd like to point
out that nabble.com really isn't the greatest way to deal with the
mailing list. You're using GMail, anyway, and that works rather nicely
for mailing lists: simply sign up on

https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

directly instead of using Nabble. You can add a nice filter in GMail that 
filters all emails coming to the mailing list into a separate folder/label.

Best regards,

Marcus

On 21.02.2017 15:37, Mehmeto wrote:
> Hi ya, 
>
> Just executed the flowgraphs "Streaming processed data from the E31x with
> GNU Radio and ZMQ" 
> https://kb.ettus.com/Streaming_processed_data_from_the_E31x_with_GNU_Radio_and_ZMQ#Host_flow_graph.
>  
>
> The flowgraphs work just fine. 
>
> I want to replace the fm_receiver_zmq_host.grc with my own
> application.(C++). 
>
> Are there any examples of such an external application which uses streaming
> data? 
>
>
>
> --
> View this message in context: 
> http://gnuradio.4.n7.nabble.com/Receiving-streaming-data-by-external-application-tp62907.html
> Sent from the GnuRadio mailing list archive at Nabble.com.
>
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[Discuss-gnuradio] Receiving streaming data by external application

2017-02-21 Thread Mehmeto

Hi ya, 

Just executed the flowgraphs "Streaming processed data from the E31x with
GNU Radio and ZMQ" 
https://kb.ettus.com/Streaming_processed_data_from_the_E31x_with_GNU_Radio_and_ZMQ#Host_flow_graph.
 

The flowgraphs work just fine. 

I want to replace the fm_receiver_zmq_host.grc with my own
application.(C++). 

Are there any examples of such an external application which uses streaming
data? 



--
View this message in context: 
http://gnuradio.4.n7.nabble.com/Receiving-streaming-data-by-external-application-tp62907.html
Sent from the GnuRadio mailing list archive at Nabble.com.

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[Discuss-gnuradio] Receiving streaming data by external application

2017-02-21 Thread Mehmeto

Hi ya, 

Just executed the flowgraphs "Streaming processed data from the E31x with
GNU Radio and ZMQ" 
https://kb.ettus.com/Streaming_processed_data_from_the_E31x_with_GNU_Radio_and_ZMQ#Host_flow_graph.
 

The flowgraphs work just fine. 

I want to replace the fm_receiver_zmq_host.grc with my own
application.(C++). 

Are there any examples of such an external application which uses streaming
data? 



--
View this message in context: 
http://gnuradio.4.n7.nabble.com/Receiving-streaming-data-by-external-application-tp62908.html
Sent from the GnuRadio mailing list archive at Nabble.com.

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Re: [Discuss-gnuradio] GNU Radio Companion - ALSA

2017-02-21 Thread Robin A. Jensen


Hello Cinaed.

It's (maybe) because X GUI is startet up on RPi and i'm connectet with a 
VNC-Client.
But anyway, i got it to work by taking Rationel Resampler out of the 
chain and then cheat with the Sample Rate.

So now:
RTL-SDR Source: Samp_Rate: 2M ->
Low Pass: Samp_rate: 1.92 M, decimation:4 ->
WBFM: Quadrature: 480K, Demation: 10 ->
Audio_Sink: 48K, 2 Channels.

And now it run and play with a overrun.

:-)

Best regards
Robin.


Den 20-02-2017 kl. 22:05 skrev Cinaed Simson:

On 02/20/2017 07:31 AM, Robin A. Jensen wrote:

Hello Cinaed

Thank you for your interrest in the proble,

When using GRC i been trying by VNCserver and directly on the pi in GUI
(X11).
This is what ps -ef | grep pulse audio shows
pi 855 1  0 Feb19 ?00:00:00 /bin/sh
/usr/bin/start-pulseaudio-x11
pi1203 1  0 Feb19 ?00:00:00 /bin/sh
/usr/bin/start-pulseaudio-x11
pi3959  3941  0 16:24 pts/000:00:00 grep --color=auto pulse

That's odd - 2 copies of /usr/bin/start-pulseaudio-x11 running at the
same time?


But still:
When using a signal source directly to the audio sink it will work.
But if i put in Rationel Resampler, there will be no sound or a
RuntimeError, if resampler interpolation is not set to 48K.
So i.e. source = 480k and resampler decimate with 480 (=1000) and
interpolation is set to 48 (=48000), it will create an error.
It's very strange.

I just installed the raspbian version of gnuradio - version 3.7.4 -  on
my raspberry pi3.

There were no runtime errors with the audio while logged into the console.

In fact, the audio works if I just leave the audio device blank.

If you think it might be related to stereo, you an use

   /usr/bin/pavucontrol

and change the audio device to mono.

I can run a python script from a SSH connection on an Intel machine and
the audio works

However, if I connect from an ARM machine, the audio doesn't work - I
get runtime errors.

Using VNC from Windows, your mileage may vary - but it doesn't appear to
be gnuradio issue.

The only suggestion I have is to turn off Qt/WX in the flow graph and
try running only the python code.

Otherwise, post your flow chart to mailing list and I'll try in on my pi3.

-- Cinaed


Best regards
Robin.


Den 20-02-2017 kl. 01:33 skrev Cinaed Simson:

My guess is you have pulse audio installed but it won't let you use the
audio devices because you're not logged into the console on the pi3.

Type

ps -ef | grep pulse

which should return entries similar to

/usr/bin/pulseaudio --start --log-target=syslog
/bin/sh /usr/bin/start-pulseaudio-x11

Note, if pulse-audio is the problem, then you need to log into the
console and change your audio device to 'pulse' before trying it again.

-- Cinaed


On 02/19/2017 12:17 PM, Robin A. Jensen wrote:

Hello Marcus.

I've haven't copy  pasted!
I made it from a tutorial and it will work on Window 10 machine. :-)

Now i have tried your suggestion and the RuntimeError is till persist.
But you lost min the part, about moving the resampler in front of WBFM.
I did it and the Runtime error is still presentet.

But i'm sure that there is a bug in the debian versin of GNU Radio
Companion 3.7.5 when using Rationel Resampler.
It's making no sense. I have understood the concept of Decimating and
Interpolation.
I now have done some test with exactly the same simple setup on Windows
10 and RPi 3 Jessie.
On Windows:
Souce: resample 480 k Waveform: Cosine, Freq: 1k->
Rationel Resampler: Decimation 480 (= 1000), Interpolation 48
(=48.000) ->
Audio Sink: Sample Rate: 48k

It will produce a tone of 1 KHz.

Doing precise the same on RPi 3:
RuntimeError: audio_alsa_sink
Only when Rationel Resampler is set to: Interpolation 48000,
It will run, but if Decimation is 480 (= 1000 -> 1000 * 48000) it will
sound like a metronome!
If i'll set it as it should be: Decimation: 4800 (=1000) and
Interpolation: 48 (48 * 1000 = 48 KHz)
It will throw RuntimeError: audio_alsa_sink.

I've tried many different settings Rationel Resampler and if
Interpolation is not set to 48000, it will create and RuntimeError.

If i do the test on windows with:
Source: sample rate: 48k -> Rationel Resampler: Interpolation: 1,
Decimation: 1 -> Audio Sink
It will work and procuce 1KHz tone.

Doing the same on RPi 3:
And it throws a RuntimeError.
If I then change Rationel Resampler: Interpolation 48000
It will run without RuntimeError and with no sound!

So i'll think this is not about a copy / paste error.
All block used in these test, are with the same Types float 32.

So i'm quit sure that is something wrong with the Rationel Resampler
block i RPi - Jessie version.

Best regards
Robin.

Den 19-02-2017 kl. 20:39 skrev Marcus Müller:

*high five*, got it to work!

So, why the rational resampler?! makes no sense, especially since both
interpolation and decimation need to be integers; since it doesn't make
sense mathematical, is it possible you did something slightly different
on Windows?

Resamplers are *only* necessary to

Re: [Discuss-gnuradio] GNU Radio Companion - ALSA

Re: [Discuss-gnuradio] volk compile error on raspberry pi3

[Discuss-gnuradio] GSL_FOUND both TRUE and FALSE

[Discuss-gnuradio] [GRCon17] Call for Presentations & Papers

Re: [Discuss-gnuradio] Gunradio on RHEL6

Re: [Discuss-gnuradio] Gunradio on RHEL6

[Discuss-gnuradio] Gunradio on RHEL6

Re: [Discuss-gnuradio] Receiving streaming data by external application

[Discuss-gnuradio] Receiving streaming data by external application

[Discuss-gnuradio] Receiving streaming data by external application

Re: [Discuss-gnuradio] GNU Radio Companion - ALSA

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