Sound is gone
Product: The Sims 4
Platform:PC
Which language are you playing the game in? English
How often does the bug occur? Every time (100%)
What is your current game version number? 1.74.80.1020
What expansions, game packs, and stuff packs do you have installed? All Expansions as of 1/28/2021, Outdoor Retreat
Steps: How can we find the bug ourselves? On startup if it's affecting your game
What happens when the bug occurs? The sound is gone
What do you expect to see? I expect sound
Have you installed any customization with the game, e.g. Custom Content or Mods? Not now. I've removed them.
Did this issue appear after a specific patch or change you made to your system? Neutral/Not Sure
The sound is completely gone, as though muted though I haven't changed anything in the past few days. I checked the in-game volume, my out-of-game volume mixer, I updated my audio devices, I did a clean reinstall of Sims 4, I rebooted, and still nothing. My audio is fine for other games and anything else on my computer. The Sims 4 sound was fine just a few days ago. I have changed no settings whatsoever since then.
@SoakAToa I meant what kind of sound device is supposed to produce the sound itself, e.g. Bluetooth speakers, headphones connected via jack, etc. Sometimes the "active" device, at least as far as Sims 4 is concerned, is one you've unplugged or disabled.
Anyway, the more obvious issue is that Nahimic has been crashing. Try disabling it in the Task Manager (under Background processes) before you open Sims 4. It will restart the next time you reboot your computer.
It may be unrelated, but your graphics driver is also crashing. Since you already have the newest Nvidia driver, it's a good idea to do a clean uninstall and reinstall. Download Display Driver Uninstaller from here:
https://www.wagnardsoft.com/forums/viewtopic.php?f=5&t=3403
Get a fresh copy of the newest driver here:
https://www.nvidia.com/Download/driverResults.aspx/170313/en-us
Next, take your computer completely offline—disable wifi and/or pull the ethernet cord—and double-click the DDU.exe. Take note of where the file will land, and click Extract. If it's easier, you can copy the path and then paste it into the address bar in a File Explorer window. Open the folder and then launch Display Driver Uninstaller.exe, and you'll get a message that you're not in Safe Mode. Click OK, then go to Options and enable Safe Mode dialog. Here's a screenshot of what your options should look like; make sure the box in red is checked:
Close options, and the DDU, and then open the DDU.exe again. For launch options, choose "Safe Mode (Recommended)," and then click Reboot to Safe Mode (you'll need your password, so find it before rebooting). Once you login, you'll see this:
In the blue box, choose GPU, then Nvidia if it's not already showing. Then click Clean and Restart (red box).
Once your computer has rebooted, now back in normal mode, run the driver install .exe in custom mode. Select "perform a clean installation" and install ONLY the GPU driver and the PHYSX software.
Reboot again, go back online, and test the game.