Audio Drivers Issue

Hi, me again with Audio stuff, sorry if it was already discussed in other threads, please let me know if i’m missing something here.

I’m having some problems in order to get Audio working on a new computer.
Fresh vvvv install 7.0-0005 using gamma launcher.
If I load an existing project using the provided DriverSettings node i get this.
Audio Configuration panel is empty.

Failed to run handler of VL.Audio Configuration
System.NullReferenceException: Object reference not set to an instance of an object.
   at VL.Audio.AudioEngine.GetSupportedChannels(Int32& inputChannels, Int32& outputChannels)
   at _VL_Audio_.Audio.DriverStatus_KO34XCKo2v1OzrwCrrrcJnProgram_.Update(DriverStatus_KO34XCKo2v1OzrwCrrrcJn __self, Boolean& Is_Playing_Out, String& Selected_Driver_Out, Boolean& Driver_Is_Default_Selection_Out, Boole
an& Is_ASIO_Out, Int32& Sample_Rate_Out, Int32& Buffer_Size_Out, String& Selected_WASAPI_Input_Device_Out, Boolean& WASAPI_Input_Is_Default_Selection_Out, Int32& Available_Input_Channels_Out, Int32& Open_Input_Channels_
Out, Int32& Available_Output_Channels_Out, Int32& Open_Output_Channels_Out, Int32& ASIO_Input_Channel_Offset_Out, Int32& ASIO_Output_Channel_Offset_Out, String& Last_Error_Out) in C:\Program Files\vvvv\vvvv_gamma_7.0-00
05-gfd21b8f14a-win-x64\packs\VL.Audio\VL.Audio.vl.2.cs:line 1772
   at _VL_Audio_.Audio.DriverStatus_KO34XCKo2v1OzrwCrrrcJn.Update(Boolean& Is_Playing_Out, String& Selected_Driver_Out, Boolean& Driver_Is_Default_Selection_Out, Boolean& Is_ASIO_Out, Int32& Sample_Rate_Out, Int32& Buff
er_Size_Out, String& Selected_WASAPI_Input_Device_Out, Boolean& WASAPI_Input_Is_Default_Selection_Out, Int32& Available_Input_Channels_Out, Int32& Open_Input_Channels_Out, Int32& Available_Output_Channels_Out, Int32& Op
en_Output_Channels_Out, Int32& ASIO_Input_Channel_Offset_Out, Int32& ASIO_Output_Channel_Offset_Out, String& Last_Error_Out) in C:\Program Files\vvvv\vvvv_gamma_7.0-0005-gfd21b8f14a-win-x64\packs\VL.Audio\VL.Audio.vl.2.
cs:line 1742
   at _VL_Audio_UI_.Audio.SettingsUI.Controller_S3CWhfU8QqfLJ3sXU76kavProgram_.Update(Controller_S3CWhfU8QqfLJ3sXU76kav __self, IObservable`1 UI_State_In, AudioSettings_R& Output_Out) in C:\Program Files\vvvv\vvvv_gamma
_7.0-0005-gfd21b8f14a-win-x64\packs\VL.Audio.UI\VL.Audio.UI.vl.1.cs:line 1115
   at _VL_Audio_UI_.Audio.SettingsUI.SettingsUI_Widget_Icd0LROqxeNLm3bsDoYisRProgram_.Update(SettingsUI_Widget_Icd0LROqxeNLm3bsDoYisR __self, ColorTheme_R ColorTheme_In, Context& Output_Out) in C:\Program Files\vvvv\vvv
v_gamma_7.0-0005-gfd21b8f14a-win-x64\packs\VL.Audio.UI\VL.Audio.UI.vl.1.cs:line 4213
   at _VL_Audio_HDE_.__auto.VL_Audio_HDEApplication_VyP04T5McEJP0VF85XlHM4Program_.<>c__DisplayClass0_0.<Update>b__8(Object stateInput_64, IReadOnlyList`1 inputs_65, IReadOnlyList`1 incomingLinks_66, Object& stateOutput
_68, Spread`1& outputs_69) in C:\Program Files\vvvv\vvvv_gamma_7.0-0005-gfd21b8f14a-win-x64\packs\VL.Audio\VL.Audio.HDE.vl.1.cs:line 4018
   at _VL_ImGui_.ReGui.ImmediateModeNode_C.<>c__DisplayClass3_0.<Update>b__0(Context Obj_In_51)
   at VL.ImGui.Widget.Update(Context context)
   at VL.ImGui.ToSkiaLayer.Update(Widget widget, Boolean dockingEnabled, Spread`1 fonts, Boolean fullscreenWindow, IStyle Style)
   at _VL_Audio_HDE_.__auto.VL_Audio_HDEApplication_VyP04T5McEJP0VF85XlHM4Program_.<>c__DisplayClass0_0.<Update>b__0(Object stateInput_22, Object& stateOutput_24, IWindow& window_25) in C:\Program Files\vvvv\vvvv_gamma_
7.0-0005-gfd21b8f14a-win-x64\packs\VL.Audio\VL.Audio.HDE.vl.1.cs:line 4027
   at VL.HDE.WindowFactory.Update(String name, CreateHandler create, UpdateHandler update, Int32& activeWindowCount)

Seems to be the same error:

are you seeing the same problem if instead you’re opening the help patch of the AudioPlayer node only?

Hi guys,
It looks that if there is nothing connected to the physical output (headphones for example) it tries to connect audio via the HDMI output and probably not all the monitors provide a valid audio solution.

Opennig the same project with headphones connected solves the issue, but I think this should be better tested (if there are not audio drivers present or other scenarios) in order to provide the best user experience, mostly for new users.

I experienced the same behavior.

interesting… so assuming you’re on win11, without headphones connected can you show a screenshot of your System → Sound settings, like:


is this showing the HDMI output? if so what device do you have on the HDMI output that shows up as an audio device?


Also interesting that i don’t get the driversettings pink error any more

Thanks, please try again now with latest preview and report back.

It looks much better now