Why does "Monitor of Built-in Analog Audio" Has no Sound?

I don't know how far you got in this process, so I start from the beginning:

Install pavucontrol:
```
sudo apt-get install pavucontrol
```
Launch it:
```
pavucontrol
```
On the Input Devices tab select Show: All input devices
Check the Volume level and if necessary Unmute the Monitor of Built-in Analog Audio channel by clicking on the little speaker icon.
Launch Audacity, start recording
While Audacity is recording: In the pavucontrol Recording tab change the Input Source for Audacity to Monitor of Built-in Analog Audio

Did that help?

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