The switcher also has to support HDMI handshake requirements implemented via either the HDCP (High-bandwidth Digital Copy Protection) or HDCP 2.2 for 4K devices protocol between source devices and the TV or video projector. If you are routing the output of the switcher through a home theater receiver (instead of going directly to the TV) that provides decoding for advanced audio formats, such as Dolby TrueHD, Atmos, DTS-HD Master Audio, DTS:X, you need to make sure that your HDMI switcher is compatible. If you need to pass HDR-encoded or 3D video signals, your HDMI switcher must have those capabilities.Īll HDMI switchers pass standard Dolby Digital and DTS Digital Surround audio signals. If you have a 4K Ultra HD TV and 4K source components, the switcher must also be 4K compatible. HDMI switchers available for consumers are at least 1080p and Dolby Digital/ DTS compatible.
Lifewire / Emily Ramirez What to Look for in an HDMI Switcher Output Resolution
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