Just like USB, HDMI can make things easier for you. Relating this to cameras, why do you need HDMI outputs?
Well, you will have to stick with us to know that as this post discusses HDMI for recording and live-streaming cameras. We will also provide answers to questions like what is HDMI cable used for, what is HDMI with Ethernet, and many more.
To start with, what does HDMI stand for? It’s an acronym for High Definition Multimedia Interface. The major function of an HDMI is to increase the distance of your signal (audio and video) over a single cable.
Just as it sounds, an HDMI camera is a camera that has an HDMI output. This is very useful in cases where you need to stream the recordings of an event live on a bigger screen. Popular examples of this are PTZ video cameras with HDMI, sports live streaming cameras and HDMI cameras used in telemedicine solutions.
With the aim to improve the existing connectivity standards in 2002, HDMI was invented to create a smaller connector that supports embedded audio and delivers a high video resolution signal.
The HDMI cable is the standard interface for connecting modern audio-visual devices together. For audio, it will transfer any format ranging from simple 2-channel PCM stereo audio to 8-channel uncompressed digital audio. Also, it supports all modern video formats, including high-definition signals and Ultra HD 4K.
Using a single HDMI cable, you can enjoy all the digital solutions you need. This enhanced technology ensures that your camera and external systems can communicate with each other, exchanging information.
HDMI uses a mechanism called, Transition-minimized Differential Signaling (TMDS) to move data from one device to another. The TDMS technique guards against data interference as it moves through the cable to another device. Using this, the signal is encoded by the sending device by reducing the number of transitions. This protects the signal quality and minimizes the chances of deterioration.
While the data is transferred, one of the twisted pairs of cables carries the signal and the other carries the inverse copy. When the data reaches the receiving device, the HDMI measures the signal’s difference and uses the data to make up for the lost signal.
Currently, there are only 3 official speed levels of HDMI cables. They are:
Category 1 and 2 use two types of cables – an ordinary cable and a cable “with Ethernet.” Normally, HDMI cables have 4 shielded twisted pairs and 7 separate wires. The “with Ethernet” cable uses 2 of the 7 individual wires to make an extra twisted pair conductor.
The category 3 HDMI cable has the Ethernet wiring as standard.
HDMI cables are produced in adherence to various specifications in which each of them is given a number or letter. All of them use the same type of cable but have a gradual increase in bandwidth and capabilities.
Below are details of each of the different HDMI cables.
This is the first release of the HDMI standard.
As an upgrade to the previous version, it features:
As an upgrade to the previous version, it features:
As an upgrade to the previous version, it features:
As an upgrade to the previous version, it features:
As an upgrade to the previous version, it features:
As an upgrade to the previous version, it features:
There are several HDMI cables on the market, making selection quite difficult. Fortunately, it’s not too hard once you consider the important factors, which are the specification, material, price, length, and color.
Check the specifications of the HDMI to know if it supports your needs. Considering most people’s application, all that’s needed is a Category 2 high-speed HDMI cable. With this, up to 4K data resolutions and all current audio formats can be transmitted.
In case you would like to transmit as much as 8K data resolutions, you will need an Ultra High-Speed HDMI cable.
Oftentimes, the HDMI cables come with a standard protective PVC plastic exterior and shield to prevent signal distortion. Some HDMI has a nylon braided cord which makes the cable more flexible and easier to move in tight places.
While material might not be very important to some people, a smaller and flexible cable usually makes installation easier.
The cost of the HDMI cable best suitable for you should be influenced by the cable’s specifications and what you need it for.
This is very crucial. Please take a moment to think about the distance the HDMI cable will need to run. As a rule of thumb, the shorter the cable, the better. This is because long wires can negatively affect the signal. With a long cable, it might be difficult to run it in a confined area.
The color is strictly dependent on your preference as your choice doesn’t affect the cable’s sound and image functionality. Some people prefer choosing discreet colors that can be quickly camouflaged among equipment, while most people go for the black color.
Also known as HDMI Ethernet Channel, it performs the functions of an HDMI and Ethernet cable. This technology integrates audio, video, and data streams into a single HDMI cable. It combines unmatched signal quality and HDMI convenience connectivity with the power and flexibility of home equipment.
The addition of an Ethernet channel is a significant advancement in the development of the HDMI standard. Networking capabilities are now included in a variety of IP-enabled home entertainment devices, including TVs, game consoles, DVRs, and many more.
Users can now enjoy all the advantages of Ethernet connectivity through HDMI. Their systems can be further simplified by eliminating the need for separate Ethernet cables.
Most PTZ camera suppliers, including Telycam PTZ-Webcam ensure that their products are capable of performing HDMI and Ethernet functions. The cameras are designed to have HDMI ports that support internet connectivity.
Nowadays, people can stream videos and pictures on TVs while the HDMI cable is connected to a source. This is mostly used when a bigger screen is needed to project visuals to a large number of people. Choose to use an HDMI cable for wired screen projection, connect one end of the HDMI cable to the TV, and the other end to the signal output device (such as a computer), and then switch the signal source of the TV to HDMI, and the TV can play the HDMI signal content.
For games that need an internet connection, HDMI with Ethernet is usually put to use. The HDMI Ethernet Channel performs the dual function of displaying the video signal and also connecting to the internet for network.
While a Digital Video Recorder is mainly used to record videos to storage devices, it can also be connected to analog cameras via HDMI. And for the signal to be accessed remotely, an internet connection is needed, hence the use of HDMI with Ethernet.
Using the HDMI that came with your PTZ camera or a compatible one, connect your PTZ camera to your PC.
HDMI PTZ camera couldn’t connect to the PC directly, you need to prepare a “video capture card” and “HDMI to USB/Type C cable”. Connect the HDMI PTZ camera to the video capture card with the “HDMI to Type C/USB cable”, and then insert the video capture card into the computer.
After the capture card receives the HDMI input signal, it copies the video signal into two copies, one is directly sent to the loop outlet with zero delay output, and the other is converted into an identifiable signal by the capture card chip, and is converted into an identifiable signal through the computer’s own USB or Thunderbolt interface, output to the computer, the computer can save the signal as a video in real-time through software such as OBS.
Video capture card (Video Capture card), also known as the video card, is used for cameras including PTZ live cameras, video recorders, LD video disc players, TV output video data or mixed data of video and audio input into the computer, and converted into computer-identifiable numbers. The data is stored in the computer as an editable video data file.
The first function of the video capture card is to use it for live broadcasts. For example, when the game anchor needs to use the camera to live broadcast mobile games, use the video capture card + Type-c to HDMI interface conversion cable, one end is connected to the live camera, and the other end is connected to the computer, notebook auxiliary Live broadcast, supports various types of mobile games, such as King of Glory, Peace Elite, etc., and is also compatible with major live broadcast platforms.
The second function of the video capture card can be used with professional live broadcast software OBS to record video capture, such as common video conferences, distance education training, medical inspection, and collection, etc. Can also be used for connection between set-top boxes than notebooks.
After connecting your PTZ HDMI camera, open the PTZ Joy controller. Click on the CAM 1 icon. Once you’ve done this, you should gain control of your HDMI camera through the Virtual Joystick on the Main Panel.
Yes. Some of the USB-C connector’s pins are used to transfer other protocols while it is in Alt Mode. This makes it possible for the widely adopted USB-C connector to serve more than just the function of USB data or power.
Your phone has to support HDMI Alt Mode for this to work. Also, your phone should have a USB-C port. If it does, with a USB-C to HDMI adapter, plug the adapter into your phone, then connect one end of the HDMI cable into your phone while the other is plugged into your TV.
For this, all the components, including the cable box or streaming service, the HDMI cable, and the TV must support 4K signals. Choose a High-Speed HDMI cable.
The HDMI ARC (Audio Return Channel) was added as a feature in version 1.4. Its function is to simplify the transmission of audio from a TV to a home theater receiver or another external speaker.
HDMI is the default audio and video connection standard. It’s used in cameras for the transmission of data to bigger screens, thereby serving a larger audience.
An HDMI cable serves as a connection between the source device and the receiving device. Since the invention of the first HDMI cable in 2002, there have been numerous advancements. Now, HDMI can be used in conjunction with Ethernet, making it capable of performing both functions. With great advancement of technology, China PTZ camera also is also developed rapidly, PTZ cameras for live streaming have different ports to connect, include but nor limited to HDMI port and USB port. If there is a need to source PTZ camera with HDMI output, feel free to contact Telycam.
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