Virtual Sound Card Driver

- To use applications with sound or voice input functionality, you need to install a multi-channel sound card driver. Please note that voice input applications require the concurrent use of two sound cards.

- If the speaker icon in the system tray at the bottom right of the taskbar is red and disabled, download and install a virtual sound card driver. After successful installation, click on the sound icon in the bottom right corner of your computer, and in the expanded options, you will see the installed virtual sound card displayed next to an upward arrow.

**Installing a Virtual Sound Card Driver**:

- Please download and install a virtual sound card driver on your own, or install the sound card driver developed by Parallel Cloud.

**FAQ**:

1. **How to use the sound card driver developed by Parallel Cloud?**

- Install the sound card driver developed by Parallel Cloud.

- In the authorization code, make sure to enable sound card authorization permissions and set the number of sound card channels.

2. **Why does the sound card driver developed by Parallel Cloud indicate insufficient channels?**

- When updating the virtual sound card driver with an authorization code, remember to save the authorization code again and restart the rendering service.

3. **Sound card driver installation failure:**

- Please run the installation program with administrator privileges.

4. **Sound loss after server reboot:**

- After installation, ensure that the sound card service is set to start automatically on boot.

- Open the Control Panel -> Administrative Tools -> Services, locate the "Windows Audio" and "Windows Audio Endpoint" services, and set them to start automatically.

- For the installation steps of the virtual sound card driver, please refer to the sound card driver installation guide in the software environment.

![](https://docs.paraverse.cc/media/202504/ec22ceaacedb4d43b62f71b768c43ff31444.png)