Audio Bus Issue

[kechiao]

Tested versions

• Godot 4.5.1
• Godot 4.6-dev4

System information

Godot v4.6.dev4 - Windows 11 (build 26100) - Multi-window, 2 monitors - OpenGL 3 (Compatibility) - NVIDIA GeForce RTX 3080 (NVIDIA; 32.0.15.6094) - 12th Gen Intel(R) Core(TM) i7-12700K (20 threads) - 31.75 GiB memory

Issue description

I have an SFX bus created in godot editor, set the routing to master, and saved this as a resource i.e. custom_bus.tres. I've made sure I have chosen "custom_bus.tres" in the godot project settings under Audio -> Buses.

In my code, I am creating AudioStreamPlayers during _ready() and have explicitly set the bus name (player.bus = "SFX"), but when I am playing my game in debug, the buses show inactive (blue/green volume, not red/orange).

However, when I play a sound from the inspector (i.e., going to an explicit audiostreamplayer, set an audiostream, and toggle "playing", I can see the audio being active, the waveforms lighting up, etc.

Note that AudioResource.AUDIO_BUS.SFX is a string, not an enum/int constant.

• Reproducible in both Godot 4.5.1 and 4.6-dev4
• Windows

Steps to reproduce

• Create Multiple Audio Buses
• Save as a custom audio bus layout resource
• Ensure project settings -> audio -> bus has the custom audio bus layout resource selected
• Programatically, create an Audio Stream Player and set the bus to a custom bus i.e. SFX
• Play the audio stream during debug mode in game
• Observe that none of the buses light up / show active / muting / solo / etc buttons dont' do anything
• Play sounds directly from an AudioStreamPlayer node via the inspector
• Observe that the buses are reacting

Minimal reproduction project (MRP)

audio_bug.zip

[AThousandShips]

I don't think this is a bug, the audio bus displays in the editor are not connected to the running game, at least muting or updating them don't have any effect, see:

• Make the editor's audio bus editor affect the running project in real-time godot-proposals#1186

I think this is a duplicate of that proposal

[kechiao]

Ah I see, thanks for providing context! Did not know that audio buses aren't connected to the running game

[AThousandShips]

This should probably be documented better, but for the missing feature please see that proposal