Do HDMI Cables Carry Sound?
Although HDMI cables were originally designed for the transfer of video, subsequent additions have since allowed for the handling of stereo audio and multi-channel surround sound audio. As mentioned previously, the latest versions of HDMI cabling allow for the transfer of audio return channel (ARC) and have the capacity for multiple audio formats, including Dolby Tru-HD and DTS-HD.
How Do You Know Which Version an HDMI Cable is?
Some cable manufacturers apply model numbers and attach labels for easy identification of the different versions. You can also establish the version number by checking the supported resolutions and refresh modes. Some of the early versions of HDMI cabling have the capacity to support the bandwidth of later versions.
What Does High Speed Really Mean?
Standard HDMI cables, otherwise referred to as category 1, have undergone HDMI Licensing testing to perform at speeds of 75Mhz. This equates to a 1080i signal. High-speed cabling has the capacity to perform at speeds of 340Mhz. This is the highest level of bandwidth which can currently be transmitted via HDMI cabling.
What Do I Do if My HDMI Cable isn’t Working?
There is a number of reasons why audio and visual signals may not be effectively transferred via HDMI cabling. The first check you should perform is to ensure the use of the correct input. This will involve a visual inspection of the ports at the back of the television or amplifier to confirm connection through the correct port. You should also ensure that the connected device is switched on. Other connectivity issues may be resolved through the disconnection and reconnection of the HDMI cable.
Additional connectivity solutions include:
Alternating the component turn-on sequence
Trying a different HDMI input
Resetting the source device’s video resolution output setting
Checking and updating the firmware as necessary
Can HDMI Cables Be Fixed or Repaired?
It’s advisable to arrange for the assistance of a professional technician to remove HDMI cabling from walls. However, common household tools and supplies can be used to repair a broken connector.
Steps to repair an HDMI connector are as follows:
Carefully inspect the cabling and ensure that the connector is definitely the issue
Unplug the cabling from the device and use a pair of wire cutters to disconnect the connector from the cable tip
Splice the appropriate type of connector onto the HDMI cable
Connect the cable with the HDMI receiver