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FM Radio Reception Issue on VMWare


From: James Hayek
Subject: FM Radio Reception Issue on VMWare
Date: Fri, 2 Apr 2021 14:10:16 -0700

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:
image.png

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

image.png

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?

--
Thanks,
James G Hayek
Youtube.com/JamesHayek

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