[op25-dev] OP25 GRC - Almost but not quite working

Andy Knitt andyknitt at gmail.com
Thu Apr 26 01:22:16 UTC 2012


It looks like imbe_decoder_factory.cc in OP25 defaults to
'software_imbe_decoder'.  I manually changed the IMBE environment variable
to "soft" and confirmed it with printenv, but I'm still getting a flat line
at the output of the OP25 block.  Any other ideas?

Thanks,

Andy

On Mon, Apr 23, 2012 at 11:47 PM, Balint <balint256 at hotmail.com> wrote:

> **
>
>
> I *still* haven’t checked out the latest code, but in my old code the
> default voice frame output was (null?).****
>
> There are options for file output, null, external (hardware) decoder and
> internal decoder. You used to be able to spec this on the command line as
> an environment variable:****
>
> export IMBE=soft****
>
> I changed my default to be the internal decoder (see
> ‘imbe_decoder_factory.cc’).****
>
> ** **
>
> *From:* op25-dev at yahoogroups.com [mailto:op25-dev at yahoogroups.com] *On
> Behalf Of *Andy Knitt
> *Sent:* Tuesday, 24 April 2012 12:45 PM
> *To:* op25-dev at yahoogroups.com
> *Subject:* [op25-dev] OP25 GRC - Almost but not quite working****
>
> ** **
>
>   ****
>
> I have the OP25 GRC demo that Balint provided up and running.
> Everything seems to working except I'm not getting any audio out of
> the OP25 block. I'm getting the "four line" output from the dibit
> output port when there is traffic on the channel, and the autotune
> output is outputting data. However, no audio. I put a scope on the
> audio output and it's a flat line at zero, even when the dibit output
> is "four lines". Any tips on how to further troubleshoot?
>
> Thanks,
>
> Andy****
>
> ****
>
>  
>
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