Re: FM Radio Reception Issue on VMWare

Thanks all. Jay, you were right. Adding audio_alsa to the .conf file resolved the choppy audio issue (and the output of aU's).

On Fri, Apr 2, 2021 at 2:51 PM Jay Patel <patel999jay@gmail.com> wrote:

Hi James,

From your screenshot, it looks like your audio is underrunning. Here is the link you can find more details : 

https://wiki.gnuradio.org/index.php/ALSAPulseAudio

Also i made flow graph for FM radio for my earlier projects. You can find those flowgraphs here:  

https://github.com/patel999jay/ADALM-Pluto-File-Transfer

Hope this helps.

Regards,

Jay

On Fri, Apr 2, 2021 at 6:14 PM James Hayek <james.hayek@gmail.com> wrote:

Hello all, I am unsure if this is an issue with my flowgraph or something specific to my VMWare machine. I am running Windows 10 along with a Virtual Machine running Ubuntu 20.04 and GNU Radio 3.8.2.0 (Python 3.8.5). I am using the Pluto SDR.

On my Windows machine, I have GNU Radio 3.17.13.4

I created similar flow graphs on both platforms and only encounter playback (choppy) issues when running on my VM Machine.

My Linux flowgraph is a little nicer with QT GUI's and shown below:

My Windows machine doesn't have any GUI's, but the same flow control.

See below:

Why am I getting a choppy audio output on my VM Machine?

Btw, I ran "aplay -l" to determine the Linux Audio output would be "plughw:0,1", but even leaving this blank I still get choppy audio.

Any ideas?

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Thanks,
James G Hayek

Youtube.com/JamesHayek

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With Regards,

Jay Patel

​+1 902-818-8034​

+91 9510032033

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Thanks,
James G Hayek

Youtube.com/JamesHayek