It's built in to the drivers for your GPU.Ĭan you tell me which sound output options you have in the games audio settings? I've read a large number of posts about Prototype sound quality and a common consensus suggests turning up the quality of your sound output for the respective output device.

Which type of sound output are you using? Internal speakers, HDMI output, headphones, or external speakers?ĭownloading DirectX 9.0c is not necessary. I understand you're having issues with sound output on your notebook.Ĭan you please tell me which notebook you have and what operating system you are using? For information on finding your product and model numbers click here: How Do I Find My Model Number or Product Number? To see which version of Windows you are using click here: Which Windows operating system am I running? Windows Update: Frequently Asked Questions. You can attempt to install it here: DirectX Software Development Kit.Īdditionally, make sure your operating system has the most recent updates. There was a release made in June of 2010 for the full runtime environment of DirectX APIs but was released for operating systems available at that time and does not feature support for Windows 8.1. You can find which version the game uses listed in the minimum system requirements for the game in most cases. If the option is not there it would indicate it only runs on one specific version, and depends on the game. Which do you currently have it set to? The game should also have an option to select the version of DirectX it is running in the graphics setting of the game. This lets you choose HDMI output, Digital Output, Speakers, etc. This is not something you need to manually install.Įach game should have an option under Audio settings for sound output. Please see the following guide to find your notebooks model number: How Do I Find My Model Number or Product Number?ĭirectX support is included in the drivers for the graphics card and in the Windows operating system.

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Directx cannot detect a sound card