About HDMI

Designed to meet the increased demands of digital TV, HDMI (High Definition Multimedia Interface) is a new digital interface standard for connecting TVs, projectors, Blu-ray Disc/DVD players, set-top boxes, and other video components. Until now, several separate video and audio cables have been required to connect AV components. With HDMI, a single cable can carry control signals, digital video, and up to eight channels of digital audio (2- channel PCM, multichannel digital audio, and multichannel PCM).

The HDMI video stream (i.e., video signal) is compatible with DVI (Digital Visual Interface)*1, so TVs and displays with a DVI input can be connected by using an HDMI-to- DVI adapter cable. (This may not work with some TVs and displays, resulting in no picture.)

The AV receiver uses HDCP (High-bandwidth Digital Content Protection)*2, so only HDCP-compatible components can display the picture.

The AV receiver’s HDMI interface is based on the following:

Audio Return Channel, 3D, x.v.Color, DeepColor, Lip Sync, DTS-HD Master Audio, DTS-HD High Resolution Audio, Dolby TrueHD, Dolby Digital Plus, DSD and Multichannel PCM.

Supported Audio Formats

•2-channel linear PCM (32–192 kHz, 16/20/24 bit)

•Multichannel linear PCM (up to 7.1 ch, 32–192 kHz, 16/20/24 bit)

•Bitstream (DSD, Dolby Digital, Dolby Digital Plus, Dolby TrueHD, DTS, DTS-HD High Resolution Audio, DTS-HD Master Audio)

Your Blu-ray Disc/DVD player must also support HDMI output of the above audio formats.

Appendix

About Copyright Protection

The AV receiver supports HDCP (High-bandwidth Digital Content Protection)*2, a copy-protection system for digital video signals. Other devices connected to the AV receiver via HDMI must also support HDCP.

*1 DVI (Digital Visual Interface): The digital display interface standard set by the DDWG*3 in 1999.

*2 HDCP (High-bandwidth Digital Content Protection): The video encryption technology developed by Intel for HDMI/DVI. It’s designed to protect video content and requires a HDCP-compatible device to display the encrypted video.

*3 DDWG (Digital Display Working Group): Lead by Intel, Compaq, Fujitsu, Hewlett Packard, IBM, NEC, and Silicon Image, this open industry group’s objective is to address the industry’s requirements for a digital connectivity specification for high-performance PCs and digital displays.

Note

•The HDMI video stream is compatible with DVI (Digital Visual Interface), so TVs and displays with a DVI input can be connected by using an HDMI-to-DVI adapter cable. (Note that DVI connections only carry video, so you’ll need to make a separate connection for audio.) However, reliable operation with such an adapter is not guaranteed. In addition, video signals from a PC are not supported.

•The HDMI audio signal (sampling rate, bit length, etc.) may be restricted by the connected source component. If the picture is poor or there’s no sound from a component connected via HDMI, check its setup. Refer to the connected component’s instruction manual for details.

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Onkyo HT-R791 instruction manual About Hdmi, En-88, Supported Audio Formats, About Copyright Protection
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HT-R791 specifications

The Onkyo HT-R791 is a highly regarded home theater receiver that seamlessly combines power, flexibility, and advanced technology to provide a captivating audio experience. This receiver is designed for both movie enthusiasts and music lovers, delivering high-quality sound and a variety of connectivity options to accommodate modern entertainment setups.

At the heart of the HT-R791 is its power amplification, featuring a 7.1 channel configuration that can deliver a robust 100 watts per channel. This allows for immersive surround sound that brings movies, music, and gaming to life, creating a dynamic audio environment. With multiple amplification circuits, the receiver ensures optimal performance and minimal distortion, resulting in crystal-clear sound reproduction.

The HT-R791 is equipped with various advanced surround sound technologies, including Dolby TrueHD and DTS-HD Master Audio. These formats are synonymous with high-definition audio and provide lossless sound quality, enhancing the detail and richness of every sound effect and musical note. Furthermore, the receiver supports Dolby Pro Logic IIz, which adds an extra dimension to sound by including height channels, enriching the overall spatial experience.

One of the standout features of the Onkyo HT-R791 is its extensive connectivity options. It boasts numerous HDMI inputs, enabling seamless integration with HD devices like Blu-ray players, gaming consoles, and streaming devices. With 4K video pass-through support, the receiver ensures compatibility with the latest display technologies, making it future-proof for homeowners looking to upgrade their visual setup.

Additionally, the HT-R791 includes legacy connections, such as composite and component video inputs, along with optical and coaxial audio inputs, allowing users to integrate older devices easily. The inclusion of a USB port further allows for playback of digital audio files directly from compatible devices.

For user convenience, the Onkyo HT-R791 features an easy-to-navigate on-screen display, making setup and operation straightforward even for novice users. Its user-friendly remote control provides quick access to essential controls, including listening modes and audio adjustments.

Overall, the Onkyo HT-R791 emerges as a versatile home theater receiver that blends power with intelligence, ensuring a rich audio-visual experience perfect for any home theater setup. Whether watching movies, enjoying music, or gaming, this receiver is designed to cater to diverse entertainment needs while maintaining exceptional sound quality and ease of use.
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