Hello - thanks for reviewing this issue.  I do see others similar but will try to provide more info.

To repro (for me):

• Load up Minecraft Dungeons via the Xbox Game Pass on PC (Beta)
• Once through the developer/logo intros (including the very loud Mojang one), proceed to the Main Menu
• At Main Menu, notice that there is no sound (music, SFX, VO, etc...).  This continues if you move into the game.   
• I've reproduced this on every instance of loading up the game (including checking if wireless Xbox controller connected was an issue
• I've never had Minecraft installed on this computer (if for some weird reason that was an issue)

Some info about software/hardware:

• Direct X version: 12
• Windows updates current? Yes
• Video Card: NVIDIA GeForce RTX 2060 Super
• Sound: Using Raxer Kraken headset
• CPU: Intel i7-6700K

I've tried several other games on GamePass and the audio is fine. Only Dungeons is impacted.

Any help is greatly appreciated.