1. Introdução
The OSEE GoStream Duet 8 ISO is an advanced 8-channel video switcher designed for professional live production environments. It offers extensive input compatibility, including 3G-SDI, 4K HDMI, NDI HX, USB webcâmeras, SRT, RTMP e direto web browser inputs. This versatility makes it suitable for a wide range of applications, from IP cameras and PTZ setups to camcorders and mirrorless cameras, eliminating the need for external converters.
This manual provides detailed instructions to help you set up, operate, and maintain your GoStream Duet 8 ISO switcher, ensuring optimal performance for your live streaming productions.
Principais características
- 8 Inputs + ISO Recording: Simultaneously record all 8 input channels and the Program (PGM) output in high-quality MP4 (H.264) format. Includes built-in dual media players for instant video playback.
- Áudio Profissional: Features two XLR inputs with 48V phantom power and studio-grade preamps (up to 75 dB gain), alongside 3.5mm mic support for various microphone types.
- Advanced Layouts & Graphics: Utilize SuperSource with 4 customizable windows, 2 Downstream Keyers (DSKs) for logos and lower-thirds, and 1 Upstream Keyer (USK) for green screen, Picture-in-Picture (PIP), and pattern effects.
- Controle perfeito: Offers auto-switching, integration with Stream Deck & Companion, a physical control panel with T-Bar, Preview (PVW)/Program (PGM) bus, macro and scene controls, and intuitive PC software for comprehensive management.

2. Configuração
This section guides you through the initial setup of your GoStream Duet 8 ISO, including power connection, input/output connections, and software installation.
2.1. Conexões Físicas
Antes de ligar o dispositivo, certifique-se de que todos os cabos necessários estejam firmemente conectados.
- Poder: Connect the provided power adapter to the DC input port on the rear panel and then to a power outlet.
- Entradas de vídeo: Connect your video sources (cameras, computers, media players) to the available HDMI and SDI input ports. The GoStream Duet 8 ISO supports 4K HDMI and 3G-SDI.
- Entradas de áudio: For professional audio, connect XLR microphones to the dedicated XLR inputs. For 3.5mm microphones, use the corresponding input.
- Rede: Connect an Ethernet cable from the LAN port to your network router for NDI HX, SRT, RTMP, and web browser inputs, as well as for PC software control.
- USB: Use the USB ports for connecting webcams or for data transfer.
- Saídas de Vídeo: Connect your monitors or recording devices to the HDMI and SDI output ports for program and multi-view monitoramento.


2.2. Instalação do Software (Opcional)
While the GoStream Duet 8 ISO can be operated via its physical panel, installing the intuitive PC software provides enhanced control and configuration options. Refer to the official OSEE website for the latest software downloads and installation instructions.
3. Instruções de operação
This section covers the core functionalities of the GoStream Duet 8 ISO, from basic switching to advanced features.
3.1. Video Switching
The physical control panel allows for seamless switching between your video sources. Use the PVW (Preview) bus to select the next source to go live, and the PGM (Program) bus to select the source currently on air. The T-Bar or CUT/AUTO buttons can be used for transitions.
- PVW/PGM Bus: Press the numbered buttons under PVW to select a source for preview. Press the numbered buttons under PGM to immediately switch a source to the program output.
- Barra em T: Smoothly transition between the preview and program sources by moving the T-Bar.
- CUT Button: Performs an instant, hard cut between the preview and program sources.
- Botão AUTO: Executes a pre-selected transition (e.g., dissolve, wipe) between the preview and program sources.

3.2. Mixagem de áudio
The GoStream Duet 8 ISO features an integrated audio mixer. Adjust audio levels for each input using the dedicated controls on the panel or via the PC software.
- Entradas XLR: Connect professional microphones. Ensure 48V phantom power is enabled if required by your condenser microphone.
- Entrada de microfone de 3.5 mm: For connecting consumer-grade microphones or wireless mic receivers.
- Controles de áudio: Use the audio mixer section on the panel to adjust gain, volume, and mute individual audio sources.

3.3. Advanced Layouts and Graphics
- SuperSource: Create complex multi-window layouts with up to 4 customizable windows. This is ideal for panel discussions, news broadcasts, or online conferences. Configure SuperSource layouts using the PC software or dedicated panel buttons.
- DSK (Downstream Keyer): Overlay graphics such as logos, lower-thirds, or titles onto your program output. The GoStream Duet 8 ISO provides 2 DSKs for flexible graphic integration.
- USK (Upstream Keyer): Utilize the USK for chroma key (green screen) effects, Picture-in-Picture (PIP), or other pattern-based keying.

3.4. Gravação e transmissão
- ISO Recording: The GoStream Duet 8 ISO can simultaneously record all 8 input channels and the final program output as individual MP4 (H.264) files. This allows for post-production flexibility.
- Media Players: Utilize the built-in dual media players to play back pre-recorded video clips or graphics during your live production.
- SRT/RTMP Streaming: Directly stream your program output to various platforms using SRT (Secure Reliable Transport) or RTMP (Real-Time Messaging Protocol). This feature also enables inviting remote guests worldwide.

4. Manutenção
Proper maintenance ensures the longevity and reliable performance of your GoStream Duet 8 ISO.
- Limpeza: Regularly wipe the exterior of the unit with a soft, dry cloth. Avoid using abrasive cleaners or solvents. Ensure no liquids enter the device.
- Ventilação: Ensure the ventilation openings are clear and not obstructed to prevent overheating. Operate the device in a well-ventilated area.
- Atualizações de firmware: Periodically check the official OSEE website for firmware updates. Firmware updates can provide new features, performance improvements, and bug fixes. Follow the instructions provided with the update package carefully.
- Gerenciamento de cabos: Mantenha os cabos organizados e livres de dobras ou torções excessivas para evitar danos e garantir conexões estáveis.
5. Solução De Problemas
This section provides solutions to common issues you might encounter with your GoStream Duet 8 ISO.
5.1. Sem sinal de vídeo
- Verifique as conexões: Ensure all HDMI/SDI cables are securely connected to both the source and the switcher.
- Verify Source Output: Confirm that your video source (camera, computer) is powered on and outputting a signal. Try connecting the source directly to a monitor to verify its output.
- Formato de entrada: Ensure the input signal format (resolution, frame rate) is supported by the GoStream Duet 8 ISO. Refer to the specifications.
- Selecione a entrada correta: Make sure you have selected the correct input channel on the switcher's control panel or software.
5.2. Sem saída de áudio
- Check Audio Levels: Verify that the audio levels for the active input are not muted or set too low on the switcher.
- Conexão do microfone: Ensure microphones are properly connected to the XLR or 3.5mm inputs. If using condenser mics, confirm 48V phantom power is enabled.
- Áudio original: If audio is embedded in HDMI/SDI, ensure the source device is outputting audio.
- Dispositivo de saída: Check the audio connection to your monitoring device (headphones, speakers) and its volume.
5.3. Problemas de conectividade de rede
- Cabo Ethernet: Ensure the Ethernet cable is securely connected to the LAN port and your router/network switch.
- Configurações de rede: Verify IP address settings (DHCP or static) on the switcher and your controlling PC.
- Firewall: Check if your computer's firewall is blocking communication with the switcher's software.
- Status do roteador: Confirm your router is functioning correctly and providing network access.
5.4. Dispositivo não responde
- Ciclo de energia: Disconnect the power adapter, wait 10 seconds, and then reconnect it.
- Firmware: Ensure the device is running the latest firmware.
- Restauração de fábrica: As a last resort, consult the OSEE support documentation for instructions on performing a factory reset. Note that this will erase all custom settings.
6. Especificações
Below are the technical specifications for the OSEE GoStream Duet 8 ISO Live Streaming Switcher.
| Recurso | Detalhe |
|---|---|
| Modelo | GoStream Duet 8 ISO |
| Marca | OSEE |
| ASIN | B0FC32987P |
| UPC | 769293552381 |
| Entradas de vídeo | 4K HDMI, 3G-SDI, NDI HX, USB Webcam, SRT, RTMP, Web Navegador |
| Entradas de áudio | 2 x XLR (with 48V Phantom Power), 1 x 3.5mm Mic |
| Gravação | 8-channel ISO + PGM (MP4 H.264) |
| Chaveadores | 1 x Upstream Keyer, 2 x Downstream Keyers |
| Características especiais | SuperSource (4 windows), Dual Media Players, Stream Deck & Companion Integration |
| Data da primeira disponibilidade | 5 de junho de 2025 |
7. Garantia e Suporte
For warranty information, please refer to the documentation included with your purchase or visit the official OSEE webOs termos e condições da garantia podem variar conforme a região e o revendedor.
If you encounter issues not covered in this manual or require further assistance, please contact OSEE customer support. Have your product model (GoStream Duet 8 ISO) and serial number ready when contacting support.
Fabricante: OSEE
For the most up-to-date support resources, including FAQs, software downloads, and contact information, please visit the official OSEE support page.





