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I am having issues with getting the GNU Radio Audio sink to work properly when using  ADRV1CRR-FMC carrier and SOM boards.

Question asked by banksbh on Jan 23, 2018
Latest reply on Jan 26, 2018 by travisfcollins

Hello Engineering support,

I am having issues when attempting to output to the GNU Radio audio sink block. I opened the example FMradio.grc and copied the parameter audiodevice which has a value of "dmix:CARD=monitor,DEV=0" and copied the audio sink block into a new project. I used the wave file source block and pointed to a pre recorded wav file and routed it to the audio sink block. I was not able to hear anything out of the speakers. Also, I tried the signal source block with a variable assigned to the amplitude and frequency without any luck. I was able to route the signals( wav source, signal source) to a wav file sink block and then open the recorded files with VLC media player and play them back successfully. The parole media player outputted an error when attempting to play back the files. Error="GStreamer backend error Could not initialize supporting library".

My thoughts are that the device value "dmix:CARD=monitor,DEV=0" may be for another piece of hardware, but I was not able to track down what would be the correct device value for this board. 

 

Any assistance would be greatly be appreciated.

 

Regards,

Brian B.

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