Moonlight setting 'Mute host PC speakers while streaming' doesn't work with Sunshine

[b5mith]

Is there an existing issue for this?

• I have searched the existing issues

Is your issue described in the documentation?

• I have read the documentation

Is your issue present in the nightly release?

• This issue is present in the nightly release

Describe the Bug

Explanation is in the title.
The setting in Moonlight doesn't seem to have any effect, but it does work with NVIDIA Gamestream.

Expected Behavior

Audio should be muted on the host PC while streaming.

Additional Context

No response

Host Operating System

Windows

Operating System Version

Windows 11 Pro Version 10.0.22621 Build 22621

Architecture

64 bit

Sunshine commit or version

0.18

Package

Windows - installer

GPU Type

Nvidia

GPU Model

GeForce RTX 2070

GPU Driver/Mesa Version

527.57

Capture Method (Linux Only)

No response

Relevant log output

No response

[mlbrnm]

Do you have some sort of virtual sink audio driver installed? You can use the Steam ones found here:

https://github.com/FCGWolfe/SteamLinkAudioDrivers

I had to install these as well to get audio out of Moonlight and mute the host PC. It should maybe be part of the docs/FAQ as I've seen it mentioned a few times if this is indeed your issue.

[AlexKuai]

I also have the same question. My audio settings in Sunshine are the default settings during installation. Do you need to modify them?

[b5mith]

Do you have some sort of virtual sink audio driver installed? You can use the Steam ones found here:

https://github.com/FCGWolfe/SteamLinkAudioDrivers

I had to install these as well to get audio out of Moonlight and mute the host PC. It should maybe be part of the docs/FAQ as I've seen it mentioned a few times if this is indeed your issue.

I've tried the following configs in Sunshine, but same issue. Audio plays just fine in Moonlight, but the host PC isn't muted.

Host audio devices:

===== Device =====
Device ID          : {0.0.0.00000000}.{4091eefb-3d55-48fe-b478-c7715ed048d4}
Device name        : Desktop (Realtek(R) Audio)
Adapter name       : Realtek(R) Audio
Device description : Desktop
Device state       : Active

===== Device =====
Device ID          : {0.0.0.00000000}.{cbd89264-5af0-4077-ba81-6ccd6ee5f102}
Device name        : Speakers (Steam Streaming Speakers)
Adapter name       : Steam Streaming Speakers
Device description : Speakers
Device state       : Active

Sunshine Settings:

Audio Sink {0.0.0.00000000}.{4091eefb-3d55-48fe-b478-c7715ed048d4}
Virtual Sink {0.0.0.00000000}.{cbd89264-5af0-4077-ba81-6ccd6ee5f102}

[ReenigneArcher]

Just set the virtual sink only, not both. You can use virtual audio cable -> https://vb-audio.com/Cable/