It began showing up on some selected HDMI fitted devices a few years back and has become common in most devices. This is simply a technological improvement on the HDMI to enhance the quality of the services of a home entertainment system. ARC provides enhanced ability in power control, volume, and other minor features. Sometimes it automatically transfers the audio of the TV to the unit, without the need of deactivating the TV onboard speakers.
ARC is also essential in sending signals both downstream and upstream over one connection. With all these connections, only one remote control is needed. What is HDMI, anyway? Back in , HDMI products were introduced to consumers. If your cable or hardware isn't HDMI certified, you might be dealing with a dud.
You can buy them here. See, that wasn't so bad, was it? The Benefits One Plug, One Connection Like we mentioned before, you could use your old cables if you wanted to, but chances are you're using component connections.
Component cables either have three plugs on each end for transferring video, or five plugs if they include audio. HDMI combines both audio and video into one connection. Instead of three to five things to plug in, you've only got one. That one cable carries everything you need to enjoy your favorite movies and shows. In fact, the newest specification even contains an Ethernet channel to streamline networking those Smart TVs and Internet-connected devices.
It also has an Audio Return Channel for reducing cable clutter when you've got a receiver in the mix. This means you're able to get that brilliantly vivid high definition picture at the best possible quality your hardware allows. On most devices, component connections max out at i. HDMI also has the ability to transmit uncompressed signals to achieve better resolution without any loss in quality.
For capable devices, you are able to view raw, unprocessed footage. Who wouldn't want to do away with all those remotes that keep getting lost in the couch cushions? The reason for this is that the female connector pins, by the very nature of a female connector are protected and cannot suffer a short circuit by the accidental shorting by an external metallic object.
However many modern connectors also have male areas that are protected and there is less chance of short circuits. Accordingly female HDMI connectors are usually built into both the static devices at either end of the connection, e. In other words female HDMI connectors are present on the signal source device and the receiving device. Male HDMI connectors are then attached to both ends of the connecting cables.
Part of the reason for this is that many of the communications occur in both directions and therefore, even though one may be a signal source as such, the receiving device still sends signals and other data out. As a result is is sensible to adopt the strategy that the devices have female connectors and the cables have male HDMI connectors.
Normally the female HDMI connectors are recessed into the body of the various devices but even so they tend to be damaged more easily as a result of the strain sometimes applied accidentally if the cables are pulled in the wrong direction, etc. As a result, the female HDMI connectors tend to be sold more frequently as replacement connectors! Even if male connectors on a cable are damaged on the shorter commercially made HDMI cables, the difficulty of replacing them and the cost of the connector compared to a new HDMI cable means that a new HDMI cable is bought rather than trying to attempt a repair.
The most obvious format for a connector is to have one that, when plugged in to the receptacle, the cable from the free connector extends outwards from the connection. This is suitable for most applications, but it can require some space for the cable to bend to the direction in which it needs to be routed.
There are some instances where a very sharp bend might be needed. Previously these connections were often made using an optical cable. See how to connect a soundbar to your TV for more details on this. It was introduced in the HDMI 2. It allows more data to be sent through the connection. Therefore eARC supports uncompressed 5.
However, as always, you will find some swear blind that they do. Make the decision depending on your hardware and what makes sense for your system. In many systems, you might not have a choice. As, if nothing else, it saves me connecting another cable.
You may find some devices, especially from different brands, might have trouble talking to each other successfully. However, when it is set up correctly it can prove a useful feature and mean you need to use fewer remote controls. Yes — although not DVI-A. This adapter is also bi-directional. So no matter which way you need to send the signal, this should do the trick. Remember, if you use an adapter like this then you will only be able to transmit the picture.
So, in this case, you would have to send the audio via another connection type like coaxial or optical audio. Yes, you can. One way is to use your AV receiver. There are plenty to choose from. You just need to check that the converter you use will deliver the signal that you need. The one above supports resolutions up to p. Also, you need to be clear about what you want to convert from and to. If you need to do something different, then you need to look for the correct converter for that job.
In some situations, you may find it difficult, or even impossible, to plug your HDMI cable into your device.
The most common scenario is where you have your flat screen TV mounted on a wall. This useful little device will connect to the end of your existing HDMI cable and create a degree connector.
You may also see these described as degree HDMI adapters. It just means the HDMI connector is designed to point up — rather than down. The adapters I have linked to above come with both versions. One that points down degree adapter — and another that points up degree adapter. Also, some people prefer to have a cable with the correct connector hard-wired on the cable — rather than use an adapter.
A switch has multiple inputs and an output. Therefore, you can connect all your devices to the switch — and then use the single output to connect to your TV.
If you want more details on this and learn how to connect everything, check out my guide to the HDMI switch. If you are playing the movie from a device with an HDMI output — like a Blu-ray player or media streamer — then this is quite easy. You just need to buy a splitter that has enough outputs. Xbox and Roku are two examples of devices that can take advantage of HEC to connect to the Internet. Dynamic HDR simply means the dynamic range can be set on a per-scene basis or frame-by-frame in the case of high-end TVs.
The higher the resolution, color depth and frame rate, the more bits need to be transmitted until the maximum bandwidth is reached. Then, the only way to transmit more bits is to add more lanes to the cable or compress the signal.
HDMI 2. Active vs. Passive cables have a limited range more on this later. Active cables on the other hand include a signal booster that enables video and audio to be transmitted over longer distances. Active cables sometimes require a power supply. Consensus seems to be about 50 feet for p and feet for 4K video, but distances of over feet are achievable. A good practical approach is to try a passive cable and, if you have problems with signal strength, add an in-line signal booster at the receiver end.
Active Cables — Length is more definitive in the case of an active cable because signal transmission is designed and tested over the advertised distance. When transmission distance requirements exceed the limits of passive and active cables, it's time to consider the various forms of signal extension. Greater distances are possible at lower frame rates. HDMI over Fiber — The connectors on fiber HDMI convert conventional electrical inputs to pulses of light that are transmitted at high speed through optical fiber, then converted back to electricity on the receiving end.
Wireless is generally slower than hardwire so make sure the video resolution and frequency is sufficient for your needs. Yes, but not directly. The adapter may require an external power source. It is the PD handshake that establishes an Alt Mode connection. As a general rule, video and audio can be converted from one protocol to another equal or lesser protocol as the table below shows.
Protocol conversion requires an adapter. Switches and splitters are often confused and for good reason. They perform similar functions. A switch takes multiple inputs and lets you choose which one to display on your TV or computer monitor. A splitter does exactly the opposite.
It takes a single video signal and replicates it to multiple displays. Each display will show the same image. Splitters are often classified according to their inputs and outputs. For example, a 2-port splitter might be referred to as "1x2" because it has one input and two outputs. When choosing a splitter, make sure the output is at the resolution and frequency you want. For example, a boardroom presentation might include Powerpoint slides and video from a streaming service like YouTube or Vimeo.
A matrix switch has multiple inputs AND outputs. For example, a 9x2 matrix switch has 9 inputs and 2 outputs. Another variation on the many-to-one theme is the Multiviewer , which consolidates a number of video inputs on a single monitor. Multiviewers are found in broadcast control rooms and video surveillance systems.
No, an HDMI splitter takes one video signal and replicates it to multiple displays so each display shows the same image. This is known as "mirroring". Here are your options for extending your desktop:. A power surge is typically a brief increase in voltage due to, for example, an overloaded circuit, power outage or lightning strike.
A surge protector detects excess voltage and safely diverts it through the building's grounding system so it doesn't damage connected equipment. HDMI surge protectors are intended to supplement primary surge protection and are installed "in line" between a video source and display. Important: surge protectors do not provide two-way protection against power spikes.
If you want to protect both source and display, you should install two surge protectors: one with its output facing the video source and one with output facing the display.
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