Audio level editor setting

Where can I find the audio level setting that appears when checking the stats window to show them in Game mode? I think because it’s set to -74.8 dB there’s no sound at all even if it was working just a couple hours ago. I think somehow I changed it with a key combination or something. Thank you.

Here’s a screenshot, notice -74.8 dB in game tab stats.

Have anyone find the solution for this issue?

I have the audio level settings to -Inf and i dont know how to change it.

Thanks