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List: gnuradio-discuss
Subject: Re: PlutoSDR : Audio Sink not properly demodulating or miss-configured
From: Cinaed Simson <cinaed.simson () gmail ! com>
Date: 2021-02-13 21:41:57
Message-ID: 5f693f99-8485-e4bc-976e-c4a6e59978ff () gmail ! com
[Download RAW message or body]
Hi Jay - then show us a simplified GRC file which demonstrates the
problem as you outlined using the green and red boxes.
There are pluto sources or sinks in the GRC file you sent.
-- Cinaed
On 2/13/21 10:23 AM, Jay Patel wrote:
> Hi all,
>
> I had a non-GRC application (zmqPUSH.py) sending messages to GNURadio
> for Transmission. I had successfully got that msg inside gnuradio
> using ZMQ PUll message source and I debug that with message debug
> print and it printed perfectly ok. I am testing a loopback where that
> message is transmitted using an audio sink and received and decoded
> using an audio source. I can see in QT time & Frequency sink that it
> is receiving the messages.
>
> GNURadioError.png
>
> But for some reason it is not properly decode the message using
> message debug. It looks like my Audio source is playing aUaUaUaU (I
> know this may be related issue to my my audio sink/source
> configuration), I googled and tried bunch of things suggested here :
> https://github.com/rxseger/linuxproblems/issues/4
> <https://github.com/rxseger/linuxproblems/issues/4> but that didn't
> work either. Normally I test my audio source and sink with a
> simple sin source and that works fine without anything in the "device
> name".
>
> Is there anything I am missing here ? Do I have to configure
> something specifically ? My end goal is replacing the audio sink and
> source with PlutoSDR for real time transmitting.
>
> I know I should update my gnuradio version to a newer version but
> unfortunately, I don't have those leverages as I have other co-systems
> such as ROS Kinetic and external simulator which only runs properly
> with 16.04.
>
> I had attached my files for your reference. Any help would be greatly
> appreciated.
>
> */With Regards,/*
> /Jay Patel/
>
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<br>
Hi Jay - then show us a simplified GRC file which demonstrates the
problem as you outlined using the green and red boxes. <br>
<br>
There are pluto sources or sinks in the GRC file you sent. <br>
<br>
-- Cinaed<br>
<br>
<div class="moz-cite-prefix">On 2/13/21 10:23 AM, Jay Patel wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAAAzugE1rBRQL74KtWY3T5736p1NHr5nYzpzVJc5+w=kZnai=A@mail.gmail.com">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<div dir="ltr">
<div class="gmail_default"
style="font-family:verdana,sans-serif">Hi all,</div>
<div class="gmail_default"
style="font-family:verdana,sans-serif"><br>
</div>
<div class="gmail_default"
style="font-family:verdana,sans-serif">I had a non-GRC
application (zmqPUSH.py) sending messages to GNURadio for
Transmission. I had successfully got that msg inside gnuradio
using ZMQ PUll message source and I debug that with
message debug print and it printed perfectly ok. I am testing
a loopback where that message is transmitted using an audio
sink and received and decoded using an audio source. I can see
in QT time & Frequency sink that it is receiving the
messages. </div>
<div class="gmail_default"
style="font-family:verdana,sans-serif"><br>
</div>
<div class="gmail_default"
style="font-family:verdana,sans-serif"><img
src="cid:part1.D462452D.E4500760@gmail.com"
alt="GNURadioError.png" style="margin-right: 0px;" class=""
width="542" height="225"><br>
</div>
<div class="gmail_default"
style="font-family:verdana,sans-serif"><br>
</div>
<div class="gmail_default"
style="font-family:verdana,sans-serif">But for some reason it
is not properly decode the message using message debug. It
looks like my Audio source is playing aUaUaUaU (I know this
may be related issue to my my audio sink/source
configuration), I googled and tried bunch of things suggested
here : <a
href="https://github.com/rxseger/linuxproblems/issues/4"
moz-do-not-send="true">https://github.com/rxseger/linuxproblems/issues/4 </a> but
that didn't work either. Normally I test my audio source and
sink with a simple sin source and that works fine without
anything in the "device name". </div>
<div class="gmail_default"
style="font-family:verdana,sans-serif"><br>
</div>
<div class="gmail_default"
style="font-family:verdana,sans-serif">Is there anything I
am missing here ? Do I have to configure
something specifically ? My end goal is replacing the audio
sink and source with PlutoSDR for real time transmitting.</div>
<div class="gmail_default"
style="font-family:verdana,sans-serif"><br>
</div>
<div class="gmail_default"
style="font-family:verdana,sans-serif"> I know I should update
my gnuradio version to a newer version but unfortunately, I
don't have those leverages as I have other co-systems such as
ROS Kinetic and external simulator which only runs properly
with 16.04. </div>
<div class="gmail_default"
style="font-family:verdana,sans-serif"><br>
</div>
<div class="gmail_default"
style="font-family:verdana,sans-serif">I had attached my files
for your reference. Any help would be greatly appreciated. <br>
</div>
<div class="gmail_default"
style="font-family:verdana,sans-serif"><br>
</div>
<div>
<div dir="ltr" data-smartmail="gmail_signature">
<div dir="ltr">
<div>
<div dir="ltr">
<div>
<div dir="ltr">
<div dir="ltr"><font face="verdana, sans-serif"><b><i>With
Regards,</i></b></font>
<div><font face="verdana, sans-serif"><i>Jay
Patel</i></font></div>
<div><br>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</blockquote>
<br>
</body>
</html>
["GNURadioError.png" (image/png)]
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