No sound from zoom conference

  1. Click on up arrow button on the right side of Unmute button (Unmute button on lower left) while you are on zoom meeting.
  2. Click on Audio Settings
  3. Increase output volume to maximum (by default it is set to minimum)

These steps solved the stated problem on both of my Ubuntu OS


Another situation that can occur here is that it picks the wrong audio device. In my case literally all applications just use the currently selected default audio device. Under Ubuntu 20.04 at least, Zoom just picks one at random, in this case the HDMI output to my monitor instead of my actual sound card.

There is no settings pane or anything else to configure it seems, so:

  1. Click on the up arrow on the right side of the unmute button in the bottom left
  2. Click the correct sound card

In case of Ubuntu 20.04, choose your actual device instead of the default Built-in Audio Analog Stereo.

Here's the screenshot of that window:

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