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I think it depends whether your HDTV requires them or not

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Q: You have HDMI cables do you need optical audio cable?
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Related questions

What is the best audio cable for a computer?

HDMI cables are best for computers with HDMI capabilities.


Is there any difference in picture between HDMI and componet cables?

No, but the HDMI cable also carries AUDIO.


How do you connect surround sound to a TV?

There are essentially two ways to get surround sound out of the Xbox. Via HDMI or via optical (TOSLINK) out. If you have the component video cable, then the end that attaches to the Xbox has an optical out port. Simply attach this to the optical in on your home theatre receiver with an optical cable. If you want to use audio via HDMI, in order to get surround sound you'll have to have an HDMI receiver capable of receiving audio. In this case run the Xbox via HDMI to the receiver and then the receiver via HDMI to the TV. The HDMI will send both audio and video. If you have the official Xbox HDMI cable you can also connect the HDMI cable directly to the TV and use the optical out connector that it comes with instead.


Does one HDMI cable from your tv to your cable set top box handle both the video and the audio or do you still need two separate cables like you would using component cables?

HDMI cables carry both video and audio. You only need one.


What type of audio cables are required for a Roku player?

An HDMI port, and a HDMI cable are required for a Roku player for both audio and visual. The audio cable should come with the Roku player itself, and if it does not, it can be purchased online from a variety of retailers.


What is a HDMI cable?

HDMI (High Definition Multimedia Interface) cables carry digital video and Dolby Digital audio data streams.


This is not an HDMI cable. Its for Playstation only. HDMI to DVI would be a cable, but does not support audio. We do not have a way to tap the audio off of an HDMI port.?

This is not an HDMI cable. Its for Playstation only. HDMI to DVI would be a cable, but does not support audio. We do not have a way to tap the audio off of an HDMI port.


How do you get audio through an HDMI cable from my rca surround system to my samsung lcd tv?

HDMI cables contain both the video and the audio signal, so you just plug it in and it should work.


Do you need Audio cable for HDMI connection?

no the HDMI cable provides for both audio and HD video


Can the mini displayPort to HDMI cable carry both video and audio?

Both DisplayPort and HDMI cables carry video and sound, so yes.


Are DVI cables better than HDMI cables?

DVI cables and HDMI carry the same video quality, HDMI however can pass audio.


Where can I find information in HDMI cables?

HDMI cables provide the best quality video and audio since there is no analog to digital conversion. They are also easy to use because you only need one cable as to using multiple cables. For more information on HDMI cables, try http://www.hdmi.org/learningcenter/faq.aspx