Instruction: Given a question and the related document, and generate the answer to the question based on the information provided in the document.

Input:
Question: So do I still need a separate audio optical cable with this cable?
Document: Shame on me for not trying this before returning the Denon! I then connected each source componenet directly to the projector with its own HDMI cable and was able to get audio and video to immediately. Thereby realizing that the BlueRigger cable was the issue all along. Still curious, I did more testing with this cable.
Great quality product! haven't used it yet. Still need to get a converter because my computer doesn't have an HDMI port. I neglected to look at that before I ordered, but we will still use it in the future.
Works excellent and at a great price! I use it to Watch TV in my living room off my computer that is in my office. I use it only for video. I have a separate feed for the audio, so I can't speak to the audio quality, but I am sure it would be just as excellent as the video. Great cable, great price value!
The BlueRigger cables are perfect! They are well made, they have a good weight to them. Theyre not like those thin flimsy generic cables. You can tell the quality is there and they work perfectly. I have purchased the HDMI cables and the optical audio cables and I will purchase all my future cables from BlueRigger.
Many people erroneously believe that one can't deliver sound from one computer to two separate and distinct sets of speakers, but it can be done effectively using the procedure tutorial on You-Tube: "How to use two audio outputs in Windows 7."
Cable just as described. Works great and fast shipping.I would recommend these every application. Also got the Optical Cable to complete the setup.Thanks BlueRigger.
This cable works great. So great I have just purchased another (different length) but still the same manufacturer.
I didn't go to 5-stars because I still had to pay to re-run the cable. I've never had a bad HDMI cable before, but as with most anything...it happens. As long as I'm taken care of expeditiously when it does, I'm happy (mostly).
The cable is exactly what was advertised. I installed the cable between a laptop and a flatscreen HDTV. I am using this setup to display a PDF presentation on the HDTV and can still use the laptop for other things.This cable is of high quality and I recommend it.
I bought this a year back and used it 3-5 times a week (connecting my computer to my TV), Still works perfect. The best part its a long cable.I decided to buy another one for my office.Will most likely buy another one.
Answer: You do not. This wire transmits audio as well, just make sure you output device puts out audio via hdmi.