AVerMedia CamStream 4K (BU113G2) User's Guide

Introduction

This document is the User's Guide for the CamStream 4K (BU113G2). It provides the information needed to quickly and smoothly use the AVerMedia product. The guide covers key features, system requirements, technical specifications, setup, installation, and includes links to technical support and AVerMedia's background.

CamStream 4K (BU113G2)

The CamStream 4K BU113G2 is a professional-grade HDMI video capture device designed for content creators, streamers, and professionals. It connects DSLR, mirrorless cameras, or camcorders to a PC or Android phone, enabling up to 4K60 video capture for powerful streaming and recording. It supports 4K60 capture via MJPEG for crisp visuals, RGB24 for accurate colors, and P010 for HDR input, adding depth and realism. The device features plug-and-play USB-C connectivity, eliminating the need for drivers, and a compact size with a tripod-mountable 1/4" thread for portability and studio use. Its dual-side elegant design includes a cold shoe mount accessory for versatile mounting options. The device is made with 50% Post-Consumer Recycled (PCR) plastic and is available in black and white.

Key Features

• Camera and Camcorder Video Capture: Connect your camera to your computer to upgrade video quality for streaming, recording, or video conferencing.
• Ultra-Low Latency / Audio & Video in Sync: Enjoy near real-time video transmission with synchronized audio, ideal for live broadcasts and virtual events.
• Tripod-Mountable Design: Features a built-in 1/4" thread and included cold shoe mount for secure attachment to tripods, rigs, or cages.
• Plug and Play: No drivers required; simply plug into a USB port to start streaming or recording.
• Record 4K60 Video: Capture ultra-high-definition footage at up to 4K 60fps for professional content creation.
• Compact and On-the-Go: Lightweight and sleek design fits easily in pockets or gear bags for creators needing mobility and performance.
• Multiple Video Format Record: Supports MJPEG, RGB24, P010, YUY2, and NV12 for flexible workflow options.
• True Color Images: RGB24 and HDR video input support provide richer colors and accurate visuals.

A Design That Puts User Experience First

The CamStream 4K BU113G2 embodies AVerMedia's design DNA with a golden ratio style. It features an LED light that echoes the AVerMedia logo's red dot and a built-in digital camo pattern. Its curved body enhances grip and visual balance. The device includes a built-in 1/4" thread, and with an accessory adapter, can be securely attached to a camera's hot shoe, preventing cable sway.

Image Description: The image shows a white camera with a lens, connected to the CamStream 4K device via a cable. Another image shows a hand holding the CamStream 4K device.

System Requirements

Windows® 10 x64 or later

• Desktop: Intel® Core™ i5-6XXX / AMD Ryzen™ 3 XXX or above + NVIDIA® GeForce® GTX 1060 / AMD RX5700 or above
• Laptop: Intel® Core™ i7-7700HQ + NVIDIA® GeForce® GTX 1050Ti or above
• 8 GB RAM recommended (Dual-channel)

macOS 14/15 or later

• Apple M1 or 3.6 GHz quad-core Intel Core i7
• Apple M1 or Radeon Pro 555 with 2 GB of VRAM
• 16 GB of 2400 MHz DDR4 memory
• For 4K60 MJPEG capture, requires M1 Ultra / M2 Ultra or above
• HDR capture and RGB24 format are not available for macOS

iPadOS 17 or later

Android 14 or later

• Device must support OTG (On-The-Go) functionality
• USB Type-C cable must be OTG-compatible

Technical Specifications

• Interface: USB 3.2 (Gen 1) Type-C (plug and play, UVC)
• Input: HDMI 2.0
• Output: USB 3.2 (Gen 1) Type-C
• Max Supported Resolutions (Video Input): 3840x2160p60 HDR/2560x1440p144 HDR/ 1920x1080p240 HDR
• Max Recording Resolution:
  • MJPEG: 3840x2160p60, 3440x1440p60, 2560x1440p144, 2560x1080p144, 1920x1080p144
  • NV12: 3840x2160p30, 2560x1440p60, 2560x1080p60, 1920x1080p120, 1280x1024p60
  • YUY2: 2560x1080p60, 1920x1200p60, 1920x1080p60, 1280x1024p60
  • P010 (HDR10) (Windows only): 1920x1080p60, 1280x1024p60
  • RGB24 (Windows only): 1920x1080p60, 1280x1024p60
• Video Format: MJPEG / NV12 / YUY2 / P010 (HDR) / RGB24
• Dimension (W x D x H): 80.8 x 40.8x 14.5 mm (3.18 x 1.61 x 0.57 in.)
• Weight: 26 g (0.92 oz.)
• Supported AVerMedia Software:
  • AVerMedia Assist Central Pro
  • AVerMedia Streaming Center (Windows only)
  • Firmware update tool
  • CamStream 4K (BU113G2)
• What's in the Box:
  • USB Type-C to Type-A Cable (1 m/3.28 ft.)
  • 1/4" Cold/Hot Shoe Mount (Adapter)
  • Quick Start Guide

* Specifications are subject to change without prior notice. Please refer to our webpage for the latest details.

* Accessories may vary slightly depending on the country of purchase.

Capture Capability Breakdown by Video Format

Input: HDMI 2.0

Output: USB 3.2 (Gen 1) Type-C (5Gbps)

Note: It's recommended to use more powerful hardware when working with higher-resolution video formats to ensure smooth performance.

Product Overview & Connection

Image Description: Two views of the CamStream 4K device are shown. The left view highlights the HDMI In port and the 1/4" Female Thread. The right view shows the LED Indicator and the USB 3.2 Type C port.

LED Indications

Streaming Center Software

Overview

Streaming Center is a powerful solution providing a centralized platform for streaming devices like capture cards, webcams, and microphones through an intuitive interface. Users can manage multiple video and audio sources, customize scenes, adjust audio settings, and fine-tune production elements before going live using its advanced layout editing tools.

Installation

Visit the AVerMedia product webpage to download Streaming Center. Follow the step-by-step instructions for installation. Upon installation, the interface will be displayed.

Image Description: A screenshot of the AVerMedia Streaming Center software interface is shown, displaying various panels for Live Streaming, Device Setting, Profile, and Membership Information, along with a preview window for editing and live output.

Main UI

The AVerMedia Streaming Center interface is divided into several key areas:

1. Function Bar: Access essential functions like Live Streaming, Device Setting, Save Folder, Profile, and Settings. Click the 3-line icon to expand.
2. Scene Device Panel: Add devices (cameras, capture cards, microphones) to scenes.
3. Screen Orientation Controls: Change screen orientation, switch between Director Mode and Easy Mode, and open the Image Detection Preview Window.
4. Recording and Streaming Controls: Enable/Disable HDR Recording, Record, and Start/Stop Streaming.
5. Edit and Live Screens: The left screen is for editing, and the right is the live screen. Click 'Transition' to move content from the edit screen to the live screen.
6. Scene Panel: Add, delete, or select scenes for editing.

Getting Started

To add a source, click the 'Live Streaming' button in the Function Bar and then click the '+' button in the panel to add your video source from a camera or capture card.

Image Description: The first image shows the 'Add Source' window within Streaming Center, allowing users to select a video source like 'Camera/Capture Card'. The second image displays the main Streaming Center interface with a video source (BU113G2) and audio mixer configured.

When a USB microphone is connected, it should automatically be set as the default audio input. If not, navigate to 'Edit Source' via the 3-line icon and manually select the microphone. Enable 'Monitor Sound' to check its audio.

Audio Tuning

Click 'Audio Setting' to access audio tuning features, including AI noise reduction, EQ adjustments, and output gain control. The software also supports virtual microphone output for third-party applications.

Image Description: Screenshots show the 'Mixer' and 'Edit Source' windows within Streaming Center, detailing audio input selection, volume control, and audio settings.

Assist Central Pro Software

Assist Central Pro is a unified software consolidating AVerMedia Assist Central and Gaming Utility functionalities into a single platform for efficiency and scalability. It allows management of AVerMedia capture card configurations, displaying device information, controlling settings, and reporting issues.

The software helps detect the latest drivers, firmware, and software updates for connected AVerMedia devices. Integrating with Streaming Center, Assist Central Pro ensures faster connections for updates, configuration, and issue reporting. Accessing 'Device Settings' in Streaming Center automatically opens Assist Central Pro for the device.

Image Description: Multiple screenshots of the Assist Central Pro software are shown, illustrating device information, settings, update checks, and a help/feedback section.

Download AVerMedia Softwares

Short URL: http://q.avermedia.com/BU113G2 Download

Redirection URL: https://www.avermedia.com/product-detail/capture-card-BU113G2#download

Contact Us

For questions or suggestions, please contact AVerMedia via the provided link.

About AVerMedia

AVerMedia Technologies specializes in digital video and audio technology, providing cutting-edge peripherals, professional capturing and streaming solutions, Edge AI technology, and video collaboration solutions. Their mission is to enhance user experience and communication in education, content creation, and video communication through innovative and eco-friendly solutions. AVerMedia is committed to contributing to society by creating products that improve customers' lives and ensuring socially responsible operations.

Connect with AVerMedia:

• Website: https://www.avermedia.com/
• LinkedIn: https://www.linkedin.com/company/avermedia-technologies

Appendix – Supported Software

CamStream 4K can send video to various applications, including:

• AVerMedia Streaming Center (Windows only)
• OBS Studio
• CameraFi Live (Android & iPadOS)
• USB Camera (Android & iPadOS)
• CapView (Android & iPadOS)
• Camo Studio (iPadOS)

For compatibility, use a device running Android 14 or later with OTG support and an OTG-compatible USB Type-C cable.

CamStream 4K uses a UVC driver, making it universally compatible with conference software that supports webcams, such as:

• Zoom
• Microsoft Teams
• Google Meet
• Cisco WebEx
• Skype

Appendix – F.A.Q.

Q: Why does the video from BU113G2 look a bit blurry in OBS or other software?

A: This may occur if the video source outputs a resolution higher than 1080p, and the capture card downscales it. Check the input resolution in Assist Central Pro. If the source resolution is not one of BU113G2's preferred resolutions, it may default to 1080p60, causing a slightly blurred output. To fix this:

1. Check the resolution output settings of your source device.
2. Open Assist Central Pro and set the preferred resolution based on your source.

Q: Why is audio and video out of sync when using OBS Studio on Windows?

A:

1. Use Streaming Center for better performance.
2. In OBS, if monitoring audio from the "Video Capture Device," A/V sync issues may occur. Fix: Disable audio from the video capture device and monitor from the audio input capture instead.
3. In Assist Central Pro, set VRR (Variable Refresh Rate) to Off.

Q: Why does my video stutter when recording high-resolution, high-frame-rate gameplay with OBS on Windows?

A: Use Streaming Center, which runs more smoothly and is optimized for this capture device.

Q: Why do I experience frame drops when using OBS with 4K60 MJPEG on Windows?

A: Switch to Streaming Center for better performance and smoother recording.

Appendix – Camera Setup Tips

To achieve the best video quality with CamStream 4K BU113G2, consider these general camera tips:

• Turn off Auto Power Off: Disable auto shutoff in camera settings to ensure the camera stays on during video calls or live streaming.
• Make Sure the HDMI Output is Clean: Turn off "HDMI Info Display" or hide on-screen icons in camera HDMI settings to avoid extra information in your video.
• Use a Power Adapter: Use an AC power adapter or a "dummy battery" to ensure continuous camera operation, as most cameras cannot charge and operate simultaneously.
• Switch to Movie Mode: Select "Movie Mode" on your camera, often indicated by a small film camera icon on the mode dial.