Rullz 4K Audio Video Capture Card Instruction Manual

1. Introduction

The Rullz 4K Audio Video Capture Card is a compact and portable device designed to capture both HDMI video and audio signals. It allows users to send these signals to a computer for storage, or to live streaming platforms for broadcasting. This device is ideal for high-definition acquisition, educational recording, medical imaging, and various live broadcast applications.

Figure 1: Rullz 4K Audio Video Capture Card (Super Mini)

2. Specifications

The capture card supports 4K 30fps input and 1080P 60 capture or live streaming.

Figure 2: 4K Input and 1080P Capture Capabilities

Figure 3: 1080P HD Recording

Figure 4: Max 4K 30 Input Support

3. Package Contents

• Mini USB 2.0 Video Capture Card x1
• User Manual x1

Please note that no retail box or other accessories are included unless specified.

4. System Requirements

Computer Hardware Configuration:

• CPU:
  • PC: i5-3400 or above
  • Notebook (NB): i7-3537U 2.0GHZ or above
• Graphics Card:
  • PC: NVIDIA GT630 or above
  • Notebook (NB): NVIDIA GT735M or above
• RAM: 4GB RAM

5. Setup and Connection

The Rullz 4K Audio Video Capture Card is designed for easy plug-and-play operation. Follow these steps to connect your devices:

5.1 General Connection Diagram

Figure 5: General Connection Diagram

1. Connect your HDMI source device (e.g., camera, HD Set-top Box, PS3/4, Blu-ray DVD, Xbox One) to the "Input" port of the capture card using an HDMI cable.
2. Connect the USB output of the capture card to a USB port on your computer (PC/Notebook) or a compatible Android phone (via a Type-C expansion dock with OTG function).
3. The device will be recognized automatically by your operating system.

5.2 Supported HDMI Output Devices

Figure 6: Compatible HDMI Output Devices

The capture card supports a wide range of HDMI output devices, including but not limited to:

• Camcorders
• Digital Video (DV) cameras
• Gaming Consoles (PS3, PS4, Xbox One, Nintendo Switch)
• Computers (Laptops, Desktops)
• TV Boxes
• iOS Phones (with appropriate adapters, not included)

6. Operating Instructions

Once connected, you will need to use compatible software to capture or stream your video and audio.

6.1 Supported Software and Platforms

Figure 7: Compatible Software and Platforms

The capture card is compatible with most acquisition software and major live broadcast platforms:

• Acquisition Software: VLC, OBS (Open Broadcaster Software), Vmix, Potplay, Amcap, QuickTime Player (for MacOS).
• Live Broadcast Platforms: YouTube Live, Facebook Live, Twitch, Youku, Douyu, Wowza Media Systems, Meerkat, Periscope, and others.

6.2 Capturing with a Mobile Phone (Android)

For outdoor live broadcasts or capturing directly to an Android phone:

1. Ensure your Android phone has OTG (On-The-Go) function.
2. Connect the capture card to your Android phone using a Type-C expansion dock (not included) that supports OTG.
3. Open a compatible capture software on your phone, such as "MSCopes" or "USB Camera" application.
4. Select the capture card as the video input source within the application.

Figure 8: Mobile Phone Live Broadcast Setup

Video 1: Demonstration of connecting and using the capture card with a mobile phone and a MacBook Air. (Relevant segment: 0:00-0:35 for mobile phone setup)

6.3 Capturing with a Computer (Windows/MacOS)

For capturing or live streaming with a PC or Mac:

1. Connect the capture card to your computer's USB port.
2. Open your preferred capture software (e.g., OBS, VLC, Amcap on Windows; QuickTime Player on MacOS).
3. In the software settings, select the Rullz capture card as your video input device (often labeled as "USB Camera" or similar).
4. Configure audio input if necessary (usually automatically detected as "USB Audio").
5. Start recording or streaming within the software.

Video 2: Demonstration of connecting and using the capture card with a mobile phone and a MacBook Air. (Relevant segment: 0:35-1:55 for MacBook Air setup)

6.4 Application Scenarios

Figure 9: Diverse Application Scenarios

The capture card is versatile and can be used in many situations:

• Business events and video conferences
• Concert shows and live performances
• Gaming (phone, computer, PS4, Xbox) capture or live broadcast
• Medical surgery and teacher lectures
• Capturing content from TV boxes, DVDs, or for study purposes

7. Maintenance

To ensure the longevity and optimal performance of your Rullz 4K Audio Video Capture Card, please follow these maintenance guidelines:

• Keep the device in a dry environment, away from moisture and extreme temperatures.
• Avoid dropping or subjecting the device to strong impacts.
• Clean the device with a soft, dry cloth. Do not use liquid cleaners or solvents.
• Ensure proper ventilation when in use to prevent overheating.
• Disconnect the device when not in use for extended periods.

8. Troubleshooting

If you encounter issues with your capture card, refer to the following common problems and solutions:

• No video/audio output:
  • Ensure all cables (HDMI, USB) are securely connected.
  • Verify that the HDMI source device is powered on and outputting a signal.
  • Check your capture software settings to ensure the Rullz capture card is selected as the correct video and audio input device.
  • Confirm your computer meets the minimum system requirements.
• Poor video quality or lag:
  • Ensure your computer's CPU and graphics card meet or exceed the recommended specifications.
  • Close other demanding applications running in the background.
  • Use a high-quality AWG26 HDMI cable, especially for longer distances (up to 15 meters).
  • Reduce the recording resolution or frame rate in your capture software if your system struggles to keep up.
• Device not recognized by computer:
  • Try connecting the capture card to a different USB port on your computer.
  • Restart your computer.
  • Ensure your operating system (Windows/MacOS) is up to date.
  • For Android phones, confirm OTG functionality and proper Type-C expansion dock connection.
• Audio issues (no sound or distorted sound):
  • Check audio settings in your capture software to ensure "USB Audio" or similar is selected as the input.
  • Verify the audio output from your HDMI source device.
  • Adjust volume levels in both your source device and capture software.

9. User Tips

Here are some helpful tips from other users to enhance your experience:

• For optimal performance, especially with 4K input, ensure your computer's USB port is USB 3.0 compatible, even though the card is listed as USB 2.0. This can sometimes improve data transfer stability.
• When using with gaming consoles, disable HDCP (High-bandwidth Digital Content Protection) in the console's settings if you encounter a black screen.
• Experiment with different capture software (OBS, VLC, Amcap) to find the one that best suits your needs and system. OBS is highly recommended for streaming due to its versatility.
• If experiencing latency, check for software updates for your capture application and ensure your system drivers are current.

10. Warranty and Support

For warranty information and technical support, please refer to the seller's policies or contact their customer service directly. Keep your purchase receipt for any warranty claims.