Does DVI Carry Audio? Getting Your Interface Needs

Acronyms such as DVI and HDMI come up very often when talking about connecting a TV to a PC or to a console or any other connection that involves video and audio.

So which cable has what capabilities? The features of a cable will determine what it can be used for. 

Some cables can only carry audio signals; others can carry both audio and video, while others can carry only video signals. Let us look into DVI cables and know all there is about them;

Does DVI Carry Audio?

Standard DVI will only support video signals, and it will not carry audio signals. This is because the DVI jack into which it is plugged does not support audio output; thus, the HDMI end on the TV will not receive audio. 

Some Graphic card manufacturers have created a way to transmit both video and audio, but you would have to do some tweaking first.

What Is DVI?

DVI is an acronym for Digital Video Interface. It was created to be an industrial standard for transmitting video material to devices for display with high resolutions of up to 2560×1600 pixels. 

It is commonly used for computer monitors, HDTVs, and projectors. DVI cables are not standard in TVs since they cannot transmit audio signals. 

The DVI can be named differently depending on the signal it supports as follows; 

DVI-D and DVI-A are for digital and analog signals, respectively, and DVI-I transmits both forms. These are specifics that you would need to know when buying a device related to DVI, such as a cable.

HDMI To DVI Cable

Many reasons would make you want to send video from your laptop or PC to your TV. First, this will be a convenient switch since the TV has a much better and larger picture.

The problem is that many computers have DVI outputs while TVs mostly have an HDMI input.

If your PC has a DVI-I single or dual-link or you have a DVI-D single or dual video output, you could use an HDMI to DVI cable to connect your PC directly to your TV and get full 1080-pixel resolution.

You could also use the cable to connect two monitors if you want to extend your desktop. You can do it by connecting it to the HDMI output into the DVI port of a monitor. You will need to run your video separately since DVI is a video-only interface.

If you don’t have the cable, you would have to use a DVI to HDMI adapter. You could buy one on eBay or Amazon if you did not get it with your graphics card.

Plug the adapter into the back of your monitor then plug the HDMI cable at the back of it.

You could change the settings to have an image on only one screen or both screens, depending on your needs. This method will work for PS, Xbox, or any other Console that uses HDMI cables.

Connecting Two Monitors To One Computer Using A DVI Cable

Having two monitors will significantly improve both the look of your workspace and your efficiency as you work. 

For this, you need to get a computer with an available port, an additional monitor, and a DVI cable.

  1. Check the CPU’s back for an open VGA or DVI slot in which you will fit the cord from your other monitor. Buy and install a PCI or AGP video card in case your computer did not come with a port. 
  2. Plugin the other screen and power it on, then plugin the first monitor to the DVI port to configure the hardware, and then reboot your PC. If the screen has no DVI port, you can use the DVI-to-VGA adapter to interface them.
  3. When the computer is on, right-click on the home screen and click on properties to set up the second desktop. Click the settings tab on the display properties screen.
  4. Click on the display dropdown list and pick an external monitor then click on the check box to extend your desktop onto another monitor and move on to more specifications.
  5. In the same window, fix the organization of the screens by dragging the icon until you get the perfect fit, then click okay. Again, there are simple diagrams to show how the adjustments will affect the screens to know what you are doing.
  6. Arrange the displays of the screens by going to display under system preferences. Select arrangement, then drag the icons, so they compare to the arrangement of your external monitors, then finish the process. 

Understanding The Different Ports Available On Your Computer

It is simple to connect a screen or monitor to a computer; you take the cable, plug it into the computer, and plug the other end into your screen. 

Most people don’t know that these cables have different capabilities; thus, they are made for different tasks.

The most common ports found on PCs are VGA ports, HDMI ports, and Display ports, so we will focus on them to understand the difference between them and when you can use them.

1. VGA

A VGA cable is usually black with a blue head that has two thumb screws for fastening. A VGA carries an analog video signal from the computer to a screen. However, the transfer of analog video brings up an issue with the loss of quality.

If your screen has a resolution of 720 pixels or lower, a VGA cable will work, and the image quality will be okay since it uses an analog signal. If you have a small screen, VGA is an affordable and perfect solution for you.

However, if your screen has a higher resolution, like FHD, you will get a blurry image. With a VGA, the higher you set the resolution, the worse the image quality gets. 

You would best use this to connect a computer to a monitor since it doesn’t transmit audio signals.

The locking mechanism is an advantage since it will keep you from accidentally disconnecting the monitor.

2. DVI

DVI cables are often black with a white head with more pins than those on a VGA cable. It also has two thumb screws that will keep the cable tightly connected to your monitor or PC.  

The most significant advantage of DVI is that it is capable of transmitting a fully digital video signal.

This means that the video quality will not degrade as you increase the resolution. There are two versions of DVI; DVI-single link and DVI-dual link.

The difference is that the dual-link version has higher bandwidth and supports higher resolution since it has more pins.

Single link DVI goes as high as 1900×1200 pixels at 60Hz, while dual-link DVI goes up to 2560×1600 pixels at 60Hz. 

This will be a better choice for gaming since it does not affect the quality. It would help if you had good speakers on your computer or external speakers since DVI cables will not transmit sound to the screen.

3. HDMI

An HDMI cable is much smaller and slimmer than a DVI or VGA cable. It has a head that resembles that of a USB; only it is much larger. 

It transmits digital video signals, and it can transmit at the same quality as a dual-link DVI cable. An HDMI has some added advantages since it can support resolutions of up to 4k. 

For example, HDMI version 1.2 can go up to 3840×2160 at 24 frames per second, while HDMI version 2.0 can go up to 3840×2160 at 60 frames per second.

There is no loss of quality, and it also carries 8 channels of audio signals. You can use the speakers on your TV to connect it to a laptop with no internal speakers. The only problem with it is that it lacks a locking mechanism.

4. Display Port 

The display port connector resembles an HDMI, but the difference is that it has a locking mechanism on its head. 

In addition, it has a button on the head to pull the locks back in to allow for unplugging.

The display port has an amazingly high bandwidth that can support up to 8k resolution at 60 frames per second, double that of HDMI. This is good, but there is no screen with 8k resolution, but you will enjoy those available.

The cable also works with technologies such as NVIDIA’s G-Sync, which will be an asset for gamers. It can also carry an audio signal just like HDMI, which will improve your general experience.

Conclusion

Digital Video Interface cables have become common in connections between TVs and PCs, and it could be a good addition for your setup. 

However, you must ensure you have another option for audio since DVI cables are not meant to transmit audio signals.

A better option for you in such a case would be using an HDMI or Display Port. These will allow you better resolutions and sound transmission to your TV. A display port would be the best when it comes to video quality.

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