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• Dell Desktop Drivers
• Desktop Sound System
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• Hp Desktop Sound Drivers
• Hp Envy Desktop Sound Driver

Method 1: Check Your PC’s Audio Settings. The first step to resolve OBS desktop audio not working is to check the computer’s audio setting. This can be done by following these steps mentioned below: Step 1: Make a right-click on the speaker icon located in the taskbar’s right bottom corner. Step 2: Click on Open Volume Mixer in the context menu. Download drivers for sound cards for free. Operating System Versions: Windows XP, 7, 8, 8.1, 10 (x64, x86) Category: Devices. Subcategory: sound cards. Popular Drivers. Monitors controllers input devices card readers. Are you tired of looking for the drivers for your devices?

In Windows 10 you can write a universal audio driver that will work across many types of hardware. This topics discusses the benefits of this approach as well as the differences between different platforms. In addition to the Universal Windows drivers for audio, Windows continues to support previous audio driver technologies, such as WDM.

Getting Started with Universal Windows drivers for Audio

IHVs can develop a Universal Windows driver that works on all devices (desktops, laptops, tablets, phones). This can reduces development time and cost for initial development and later code maintenance.

These tools are available to develop Universal Windows driver support:

• Visual Studio 2015 Support: There is a driver setting to set “Target Platform” equal to “Universal”. For more information about setting up the driver development environment, see Getting Started with Universal Windows Drivers.

• APIValidator Tool: You can use the ApiValidator.exe tool to verify that the APIs that your driver calls are valid for a Universal Windows driver. This tool is part of the Windows Driver Kit (WDK) for Windows 10, and runs automatically if you are using Visual Studio 2015 . For more information, see Validating Universal Windows Drivers.

• Updated DDI reference documentation: The DDI reference documentation is being updated to indicate which DDIs are supported by Universal Windows drivers. For more information, see Audio Devices Reference.

Create a Universal Audio Driver

For step-by-step guidance, see Getting Started with Universal Windows Drivers. Here is a summary of the steps:

1. Load the universal audio sysvad sample to use as starting point for your universal audio driver. Alternatively, start with the empty WDM driver template and add in code from the universal sysvad sample as needed for your audio driver.

2. In the project properties, set Target Platform to 'Universal'.

3. Create an installation package: If your target is device running Windows 10 for desktop editions (Home, Pro, Enterprise, and Education), use a configurable INF file. If your target is device running Windows 10 Mobile, use PkgGen to generate an .spkg file.

4. Build, install, deploy, and debug the driver for Windows 10 for desktop editions or Windows 10 Mobile.

Sample Code

Sysvad and SwapAPO have been converted to be Universal Windows driver samples. For more information, see Sample Audio Drivers.

Available Programming Interfaces for Universal Windows drivers for Audio

Starting with Windows 10, the driver programming interfaces are part of OneCoreUAP-based editions of Windows. By using that common set, you can write a Universal Windows driver. Those drivers will run on both Windows 10 for desktop editions and Windows 10 Mobile, and other Windows 10 versions.

The following DDIs to are available when working with universal audio drivers.

Convert an Existing Audio Driver to a Universal Windows driver

Follow this process to convert an existing audio driver to a Universal Windows driver.

1. Determine whether your existing driver calls will run on OneCoreUAP Windows. Check the requirements section of the reference pages. For more information see Audio Devices Reference.

2. Recompile your driver as a Universal Windows driver. In the project properties, set Target Platform to 'Universal'.

3. Use the ApiValidator.exe tool to verify that the DDIs that your driver calls are valid for a Universal Windows driver. This tool is part of the Windows Driver Kit (WDK) for Windows 10, and runs automatically if you are using Visual Studio 2015. For more information, see Validating Universal Windows Drivers.

4. If the driver calls interfaces that are not part of OneCoreUAP, compiler displays errors.

5. Replace those calls with alternate calls, or create a code workaround, or write a new driver.

Creating a componentized audio driver installation

Overview

To create a smoother and more reliable install experience and to better support component servicing, divide the driver installation process into the following components.

• DSP (if present) and Codec
• APO
• OEM Customizations

Dell Desktop Drivers

Optionally, separate INF files can be used for the DSP and Codec.

This diagram summarizes a componentized audio installation.

A separate extension INF file is used to customize each base driver component for a particular system. Customizations include tuning parameters and other system-specific settings. For more information, seeUsing an Extension INF File.

An extension INF file must be a universal INF file. For more information, see Using a Universal INF File.

For information about adding software using INF files, see Using a Component INF File.

Submitting componentized INF files

APO INF packages must be submitted to the Partner Center separately from the base driver package. For more information about creating packages, see Windows HLK Getting Started.

SYSVAD componentized INF files

To see an example of componentized INF files examine the sysvad/TabletAudioSample, on Github.

The traditional INF files continue to be available in the SYSVAD sample.

APO vendor specific tuning parameters and feature configuration

All APO vendor system specific settings, parameters, and tuning values must be installed via an extension INF package. In many cases, this can be performed in a simple manner with the INF AddReg directive. In more complex cases, a tuning file can be used.

Base driver packages must not depend on these customizations in order to function (although of course functionality may be reduced).

UWP Audio Settings APPs

To implement an end user UI, use a Hardware Support App (HSA) for a Windows Universal Audio driver. For more information, see Hardware Support App (HSA): Steps for Driver Developers.

Programmatically launching UWP Hardware Support Apps

To programmatically launch a UWP Hardware Support App, based on a driver event (for example, when a new audio device is connected), use the Windows Shell APIs. The Windows 10 Shell APIs support a method for launching UWP UI based on resource activation, or directly via IApplicationActivationManager. You can find more details on automated launching for UWP applications in Automate launching Windows 10 UWP apps.

APO and device driver vendor use of the AudioModules API

The Audio Modules API/DDI is designed to standardize the communication transport (but not the protocol) for commands passed between a UWP application or user-mode service to a kernel driver module or DSP processing block. Audio Modules requires a driver implementing the correct DDI to support module enumeration and communication. The commands are passed as binary and interpretation/definition is left up to the creator.

Audio Modules is not currently designed to facilitate direct communication between a UWP app and a SW APO running in the audio engine.

For more information about audio modules, see Implementing Audio Module Communication and Configure and query audio device modules.

APO HWID strings construction

APO Hardware IDs incorporate both standard information and vendor-defined strings.

They are constructed as follows:

Where:

• v(4) is the 4-character identifier for the APO device vendor. This will be managed by Microsoft.
• a(4) is the 4-character identifier for the APO, defined by the APO vendor.
• n(4) is the 4-character PCI SIG-assigned identifier for the vendor of the subsystem for the parent device. This is typically the OEM identifier.
• s(4) is the 4-character vendor-defined subsystem identifier for the parent device. This is typically the OEM product identifier.

Plug and Play INF version and date evaluation for driver update

The Windows Plug and Play system evaluates the date and the driver version to determine which drive to install when multiple drivers exist. For more information, see How Windows Ranks Drivers.

To allow the latest driver to be used, be sure and update the date and version, for each new version of the driver.

APO driver registry key

For third party-defined audio driver/APO registry keys, use HKR with the exception of HKLMSystemCurrentControlSet.

Use a Windows Service to facilitate UWP <-> APO communication

A Windows Service is not strictly required for management of user-mode components like APOs, however, if your design includes an RPC server to facilitate UWP <-> APO communication, we recommend implementing that functionality in a Windows Service that then controls the APO running in the audio engine.

Building the Sysvad Universal Audio Sample for Windows 10 Desktop

Complete the following steps to build the sysvad sample for Windows 10 desktop.

1. Locate the desktop inf file (tabletaudiosample.inf) and set the manufacturer name to a value such as 'Contoso'

2. In Solution Explorer, select and hold (or right-click) Solution 'sysvad' , and choose Configuration Manager. If you are deploying to a 64 bit version of Windows, set the target platform to x64. Make sure that the configuration and platform settings are the same for all of the projects.

3. Build the all of the projects in the sysvad solution.

4. Locate the output directory for the build from the build. For example it could be located in a directory like this:

5. Navigate to the Tools folder in your WDK installation and locate the PnpUtil tool. For example, look in the following folder: C:Program Files (x86)Windows Kits10Toolsx64PnpUtil.exe .

6. Copy the following files to the system that you want to install the sysvad driver:

Install and test the driver

Follow these steps to install the driver using the PnpUtil on the target system.

1. Open and Administrator command prompt and type the following in the directory that you copied the driver files to.

   pnputil -i -a tabletaudiosample.inf

2. The sysvad driver install should complete. If there are any errors you can examine this file for additional information: %windir%infsetupapi.dev.log

3. In Device Manager, on the View menu, choose Devices by type. In the device tree, locate Microsoft Virtual Audio Device (WDM) - Sysvad Sample. This is typically under the Sound, video and game controllers node.

4. On the target computer, open Control Panel and navigate to Hardware and Sound > Manage audio devices. In the Sound dialog box, select the speaker icon labeled as Microsoft Virtual Audio Device (WDM) - Sysvad Sample, then select Set Default, but do not select OK. This will keep the Sound dialog box open.

5. Locate an MP3 or other audio file on the target computer and double-click to play it. Then in the Sound dialog box, verify that there is activity in the volume level indicator associated with the Microsoft Virtual Audio Device (WDM) - Sysvad Sample driver.

The Open Broadcaster Software is a fantastic application that has revolutionized the video recording and live streaming process from your PC. Once installed, you do not need any other professional software, and it is compatible with Windows, Linux, and Mac. OBS allows users to stream live to YouTube, Twitch, and many other platforms with ease. However, some users have complained about facing issues like OBS desktop audio not working and no sound on desktop. This guide will attempt to provide a quick and simple resolution for these issues.

Steps On How To Fix OBS Desktop Audio Not Working

Four troubleshooting methods can be used to resolve desktop sound not working on your PC after installing the OBS application. However, before you attempt any step mentioned below, check and uninstall any other third-party programs that might control the Audio on your PC, like Realtek Gaming Software, Nahimic, etc.

Method 1: Check Your PC’s Audio Settings

The first step to resolve OBS desktop audio not working is to check the computer’s audio setting. This can be done by following these steps mentioned below:

Step 1: Make a right-click on the speaker icon located in the taskbar’s right bottom corner.

Step 2: Click on Open Volume Mixer in the context menu.

Step 3: Now check for the Speaker Icon under the OBS section and Click on it to unmute it.

Note: If the OBS speaker option is unmuted and click on it to toggle it once.

Check if the desktop sound not working issue has been resolved on your PC.

Also Read: {FIXED}: OBS Windows Capture Black Screen Issue 2020

Method 2: Check OBS Audio Settings

After you have checked the PC’s settings, it is time to check the OBS application settings related to audio. This can be done by following the quick and simple steps mentioned below:

Step 1: Open the OBS program and then click on File in the upper left corner.

Step 2: Click on Settings from the drop-down menu to open the Settings window.

Step 3: Now, click on the Audio option in the left pane and select Stereo next to Channels under the General section.

Step 4: Scroll down and locate Desktop Audio and Mic/Auxillary Audio. Choose your device in both these options.

Step 5: Exit out of the Settings and relaunch the OBS application.

Check if the no sound on desktop error has been resolved.

Method 3: Reinstall OBS

If there is no issue with either of the settings and you are still facing desktop sound not working in Windows 10, then you can try to reinstall the OBS app on your computer. To reinstall any app, you will have to uninstall it first and then install it from a new source. Here are the steps to uninstall the OBS app:

Step 1: Press Windows + R to open the RUN box and type “appwiz.cpl” followed by OK.

Step 2: A new window will open listing all the apps installed on your PC. Locate OBS Studio, click on it, and then click on the Uninstall option on the top to obliterate the program from your system.

Step 3: Now, download a fresh copy of the OBS Studio from the official website and install it.

Desktop Sound System

A new clean installation of OBS will resolve the OBS desktop audio not working issue for you.

Method 4: Update Sound Drivers

No Sound On Desktop

The final option to resolve the no sound on desktop issue is by updating your sound drivers. This can be done manually if you know the model and make of your hardware. Just visit your sound card’s support website and search for the latest drivers compatible with your hardware. If you want to save time, effort and get over with it quickly, you can try Advanced Driver Updater. Here are the steps to use ADU to update your sound card drivers and resolve desktop sound not working issue.

Step 1: Download and Install ADU on your computer from the link provided below.

Step 2: Click on the Scan Now button to identify all the outdated drivers on your PC.

Step 3: Locate your sound card among the list of driver issues displayed on the screen and click on the Update Driver link next to it.

Step 4: The ADU will auto scan your PC and search for the most updated driver compatible with your hardware and install it as well.

Note: Advanced Driver Updater is available in two versions: Trial & Pro. To update all drivers, we recommend using the Pro version.

The Final Word On How To Fix OBS Desktop Audio Not Working In Windows 10 PC?

The above methods will surely help you to resolve the OBS desktop audio not working on your PC. These methods have been compiled from troubleshooting forums, and the method which describes updating drives seemed to have worked for many. If you wish to try this method first, you can use these methods in any sequential order. Remember to check your OBS audio after each method and mention the method that worked for you in the comments section below.

Hp Desktop Sound Drivers

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Hp Envy Desktop Sound Driver

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