Some people have found themselves in situations where the TV didn't have enough HDMI inputs to connect consoles, computers and other devices.In such cases, an audio and video adapter may be the solution to this problem.Currently, the market offers three adapter options: splitter, switch and matrix.Although all are pieces for HDMI connections, each one has a specific function when organizing an audio and video structure.For those who are still confused by the terms and features, Canaltech will explain how to use each of these accessories on a daily basis.Also, know tips for when you buy these products.The HDMI splitter is the adapter used when a source needs to send the audio and video signal to several screens simultaneously.For example, it is used when a computer needs to display the same content on two or more monitors.In this way, the accessory has only one HDMI input (input) for signal distribution, while it can have from two outputs (output) to feed several screens.When using the HDMI splitter, it is necessary to pay attention to the image resolution.While it is possible for the source and screens to have the same resolution, it is common for the lower standard to be the quality transmitted to all monitors.If a computer is streaming 4K to a 4K monitor and 1080p television, the source will only send 1080p signal to everyone.Unfortunately, the adapter will not convert the signal to serve just one screen.The HDMI switch (or switch) is used when there are multiple sources that need to send the signal to one screen.A common example is the user having a cable TV receiver and a console, but the TV has only one HDMI input.With basic models from two inputs, the accessory connects several devices and allows you to select which one will send the signal to TV or monitor.On the other hand, the adapter only provides one output that will be connected to the main screen.For those who are thinking of buying an HDMI switch, the suggestion is to purchase a product with more input ports than is necessary.Later, this will become a convenience if the user buys new devices with an HDMI connection.It is also important to mention that there are models of bidirectional switches.By changing a switch, the adapter can act as a traditional switch (one output, multiple inputs) or a splitter (one input, multiple outputs).Matrix HDMI is an adapter that combines the functions of the two previous options.With multiple inputs and outputs, the accessory allows you to connect different devices to different screens.In home installations, this model is often used to allow multiple appliances to connect to different monitors or TVs.So, the user can manage the various signals and screens through a single device.Making use simpler, these products are often sold with a remote control, an integrated system, or require a special mobile app.So, while the other devices can be “hidden”, only the Matrix HDMI will be visible.Before purchasing an HDMI adapter, it is necessary to pay attention to some details.This can prevent errors in audio and video structure design when purchasing products with different functions.Unfortunately, many stores categorize HDMI splitters and HDMI switches as the same product.Therefore, it is necessary to pay attention to the number of input and output ports of the adapter so as not to acquire the item with different functionality.By default, the number of inputs and outputs are separated by an “x”.Simply put: the number of inputs refers to the number before the “x”, while the number of outputs of the adapter is the number indicated after the “x”.Thus, a 3x1 switch is an accessory with three input ports and only one output port.So a 1x3 splitter has only one HDMI input and three outputs.Most HDMI switches support resolutions up to 1080p.However, an HDCP-compatible adapter or converter is required to be able to play back 4K images.Regarding audio, Dolby Digital and DTS Digital Surround are “basic” formats.Therefore, a special switch is required to use Dolby Atmos, DTS:X or any other high definition sound standard.Many models of HDMI switches and HDMI splitters use power supplies.Therefore, it is necessary to be aware that some products do not have plug adapters, only a USB cable.These details must be considered when the person is assembling an audio and video structure.Especially when users are looking to use only the minimum amount of cables needed.As obvious as it is, some users forget to buy additional cables when installing an HDMI adapter.At least two cables are needed to make the connection between the power supply, the switch/splitter/matrix and the display.In order to make everything “perfect”, it is also necessary to calculate the size of the cables that will be used in the project.This will prevent the wires from getting too tight, too loose or not reaching the appliances.Did you like these tips on what is and how to use HDMI adapters?Don't forget to share this content with more people interested in the topic!Source: Discabos, CNet, Electronics NotesEnter your email address on Canaltech to receive daily updates with the latest news from the world of technology.