How is hdmi port

Be careful when you are buying an HDMI cable. Some brands like to make out that their cable is faster than the rest and use many exciting ways to describe them. There are currently only 3 official specifications for the speed of an HDMI cable:. Internally, HDMI cables have 4 shielded twisted pairs and 7 separate wires. An HDMI cable has 3 data pairs of wire that transmit the signal. The two different categories of HDMI cable are speed tested using just one data pair.

Yet the bit rate you see quoted will often be the combined total for all three to get a higher number to impress you with. Or, 2. This is the equivalent of a p or i video signal. This is up to 3. This is the equivalent of a p signal at 60 frames per second — or a 4K p signal at 30 frames per second. This would also include 3D video and any signals with increased color depth. This new category was introduced to allow for the increased speed requirements of the HDMI 2.

The full range of video resolutions and frame rates supported by HDMI 2. The theory is that a gold-plated connector will be more resistant to oxidization and will conduct the signal better.

The truth is you are hardly likely to get much oxidization going on in your living room. There are currently 3 standards of HDMI cable — category 1 standard , category 2 high-speed and premium high-speed and category 3 ultra high-speed. The different standards of HDMI cables are simply designed and tested to transfer a maximum amount of data. It is increased video resolutions that have required improved data rates in newer HDMI cables.

This will ensure it will transfer the high data rates required. Probably not. However, before you buy a new cable, give it a try and you may find it will work. One part of the new HDMI 1. The 1. Only if you currently have a category 1 HDMI cable. Maybe, but probably not. An interesting point has been reached where the maximum data rate specification of the HDMI 2. HDMI 2. However, a well-made category 2 cable will probably handle data rates far higher than it has been tested to.

The same rule applies to that mentioned above. If you are using HDMI 2. First, try your old cables, they may work. If you have a problem, then you might need to invest in new cables. The length of your cables will be important. If your cables are 2 or 3 meters, you might not have a problem with an older cable. If you have a device with an HDMI output, like a laptop, for example, you may need to connect it to a projector that only has a VGA input. And then use a standard HDMI cable to connect to your display device.

Why might you want to do this? The most common reason would be that you want to connect your computer or notebook to an external monitor or HDTV. You could also use this type of adapter to add a second monitor if you are already using an HDMI output.

And, it also only supports p video on a USB 3. So, you must read the description of the adapter before buying one. Many will only support certain operating systems, video resolutions, and audio formats.

This converter uses the smaller USB type-C connection. Make sure that you buy the right one for the device that you have. The decoding is done by the receiver instead. There are five types of HDMI connectors :. Each pin is defined in the HDMI specification for a specific task, and in the earlier versions of HDMI, some of the pins were optional or reserved for future use.

For example, pin 14 was reserved in HDMI 1. There are four shielded twisted pairs for sending video and audio data, with seven more conductors used for features like the Display Data Channel, CEC, Audio Return Channel and power.

Three of the seven separate conductors in an HDMI with Ethernet cable also form an extra twisted pair. However, some of the pins are assigned in a different order. Introduced in the HDMI 1. Video and audio from the source device — and audio back to the source. In a standard HDMI connection, you send data from a playback device to a display device. This is where an ARC connection is useful. The AV receiver can send video to the TV to display — but it can also receive audio from the TV to play over the speaker system.

It is then easy to play the audio from these apps on your home theater speaker system. All using the same cable. 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. However, there are limitations to the distance HDMI transmissions can travel. There is high grade Category 2 cable available, using which we can successfully achieve cable lengths of up to 15 metres.

With over 50 years experience in supply and system design for many of the UK's largest, high profile audio projects, our AV experts provide a unique level of technical support and customer service. Click on the links below to find out more. There are a whole host of reasons why a seemingly good HDMI signal can drop out without warning. We take a look at a number of reasons for signal drop-out and provide a checklist for fault-finding on your system. With more and more sources being connected to your TV or screen, chances are you're limited to just 2 or 3 HDMI inputs?

So how can you add more inputs without having to invest in a new TV? With recommended transmission distances of just 5 to 10 metres 20 metres at very best over standard HDMI cable, getting your HDMI Source signal to the Screen can often seem a challenge. But their are a number of devices and technologies out there - from simple equalisers and repeaters, to the latest in HDMI over Ethernet or Fiber - that can increase your signal transmission distances to hundreds of metres!

Good question! Though HDMI carries both video and audio signals simultaneously of course, there are certain commercial applications where you might need to embed an alternative audio signal think sports bars showing sports TV channel but playing music from a different source, for example. We look at how HDMI audio embedders offer a simple solution.

Whether it's for commercial or residential systems, the number of AV Source and Display devices we own continues to increase. And, therefore, many integrated system require the ability to switch and change between which Source is transmitting to which Display or TV. HDMI Switchers, Matrix devices and the latest software solutions provide management, control and distribution of the growing multi-device AV system.

However, it can cause huge headaches between devices, with the much maligned ' HDCP error ' message appearing on screen! Subscribe to our YouTube channel now at howtoav. Login Log in to your Account. Toggle navigation.