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Wireless HDMI At 1080p, Lag-Free WHDI Tested

Posted by CmdrTaco on from the i-got-no-strings-to-hold-me-down dept.

MojoKid writes "Wireless HDMI technologies have finally come of age. Though there are two camps currently in the market (Intel's WiDi and WHDI), the bottom line is lag-free full HD 1080p wireless HDMI video/audio transmission is now a reality. No longer does an HTPC need to be shoehorned into the confines of the entertainment center. Also, that notebook you have perched on the coffee table just got a major display upgrade. This demo of the Asus WiCast and the briteView HDelight wireless HDMI transmitter kits, shows the technology in action and its impressive actually. Both of these WHDI-based kits utilize the same family of Amimon WHDI transmitter and receiver chipsets. The technology is capable of full 1080p HD video and Dolby Digital surround sound audio transmissions, over distances of up to 30 feet with less than a millisecond of latency."

21 of 171 comments (clear)

  1. Price is crazy by y86 · · Score: 2, Informative

    A Asus Oplay box or a roku box is still a better way to deliver content over wireless for this price.

    At 30$ I'm a buyer.

  2. Do not trust by DigiShaman · · Score: 3, Insightful

    What the subject says. If it's WiFi, I have good reason to never trust a trouble-free uninterrupted level of operation that it claims. I want copper, and shielded. Thank you very much.

    --
    Life is not for the lazy.
    1. Re:Do not trust by Simon80 · · Score: 2, Informative

      WiFi and wireless do not mean the same thing..

    2. Re:Do not trust by Kohath · · Score: 2, Funny

      If it's WiFi,

      It isn't WiFi.

      Thank you very much.

      You are welcome.

    3. Re:Do not trust by jgagnon · · Score: 3, Funny

      I realize I'm arguing with AC, but you are uneducated AND opinionated. You should run for a seat in congress!

      --
      Remember to maintain your supply of /facepalm oil to prevent chafing.
  3. Security? by rotide · · Score: 3, Interesting

    Just curious, but what security is there besides 8 channels (Not that channels offer security)? What's stopping my neighbor from watching where I surf or what I watch?

    1. Re:Security? by EdZ · · Score: 3, Funny

      Going wired won't help you with that. You must learn to interact with your computer purely through morse blinking of the capslock LED!

    2. Re:Security? by Neon+Spiral+Injector · · Score: 4, Informative

      Amimon's FAQ answers this question.

      Is WHDI secured? Could someone eavesdrop on my wireless high definition video?

      WHDI uses strong encryption (AES 256 bit-based) to protect the high definition wireless link. This ensures that all video or audio content transmitted wirelessly over WHDI links is safe from intentional or accidental eavesdropping.

    3. Re:Security? by Abstrackt · · Score: 2, Funny

      This ensures that all video or audio content transmitted wirelessly over WHDI links is safe from intentional or accidental eavesdropping.

      Accidental eavesdropping is becoming a real concern these days. Just yesterday, some guy with a really loud stereo pulled up next to me at a red light and I accidentally eavesdropped on the music he was playing. it's a good thing the RIAA wasn't around to see that.

      --
      They say a little knowledge is a dangerous thing, but it's not one half so bad as a lot of ignorance. - Terry Pratchett
    4. Re:Security? by SuiteSisterMary · · Score: 2, Informative

      Three people in a neighbourhood all get 900 mhz baby monitors. Person A can hear person B's transmitter. Not by intent. That's accidental.

      --
      Vintage computer games and RPG books available. Email me if you're interested.
    5. Re:Security? by MikeBabcock · · Score: 2, Insightful

      That's not a valid answer.

      AES encryption is only good if the keys are randomly generated or guaranteed to be secret at the time of transmission. If using fixed keys, or a bad system for key generation, its just as viewable as unencrypted video flying through the airwaves.

      --
      - Michael T. Babcock (Yes, I blog)
  4. "Unauthorized retransmission" prosecutions... by jeffb+(2.718) · · Score: 2, Interesting

    ...coming right up?

  5. I need your displays by FauxPasIII · · Score: 2, Funny

    I want to get this for my cell phone, so I can pretend I'm Tony Stark. "I need your displays."

    --
    25% Funny, 25% Insightful, 25% Informative, 25% Troll
  6. WiDi by LordMyren · · Score: 2, Interesting

    keep in mind, WiDi requires an Intel Core processor and special software on the computer doing the realtime encoding. Can anyone confirm whether Wireless Display is compatible with the existing spec called Wireless HD? Wikipedia forwards WiDi to WirelessHD, but my understanding was Intel's spec was not inter-compatible.

  7. Huh? by MrEricSir · · Score: 2, Funny

    HDMI, WiDi, WHDI, HTPC, WiCast... what the hell are you talking about? Are these even words, or did you just make all this up?

    --
    There's no -1 for "I don't get it."
  8. More importantly... by Syberz · · Score: 3, Funny

    How easy will it be for me to access my hot neighbor's webcam feed, for um... research purposes?

    --
    ~Syberz
    1. Re:More importantly... by KingMotley · · Score: 2, Funny

      $8.99 / minute.

  9. Re:HTPC's not limited only by HDMI. by Combatso · · Score: 2, Interesting

    my HTPC is used for other purposes too.. more of a regular PC with HTPC capabilities.. i dunno what to call it... wait yes I do... its a PC.. its only HT when i turn the lights off

  10. Not loseless by mike449 · · Score: 2, Informative

    Note that the transmission is not loseless.
    “It appears that WHDI is manipulating the color-space conversion by dropping some of the pixels’ LSBs and maybe even sending some pixels as monochrome interspersed with color pixels that change from frame to frame".

  11. Re:millisecond? Why by KingMotley · · Score: 2, Insightful

    Really? Because I could swear my computer, and my PS3 play games and they aren't compressed into h.264 before being put in the monitor/tv.

  12. Re:HTPC's not limited only by HDMI. by Combatso · · Score: 2, Insightful

    my CPU gets hot.. what more do ya want man? I dont have a stand alone box to underclock, because I use my computer for other things. If my crummy Athalon X2 didnt need a fan, i wouldnt have one on it.. am I the only one who thinks a stand alone box is overkill sometimes.. in a perfect world i'd have a big pile of money to buy the latest in slow computers I would.. but right now im more concerned about keeping a roof over my families head and food in their bellies.