Gizmo Cafe Blog

  • HD DVD, Blu-ray and HDMI 1.3 – Soylent Green is PEOPLE!

    Hype and misunderstanding follow the new HDMI v1.3 and how it relates to high resolution audio formats found on HD DVD and Blu-ray discs. Many believe that in order to take advantage of the audio formats, you have to buy all new supporting products. That’s not necessarily true.

     

    Consumers are being bombarded with new products like HD DVD and Blu-ray players that carry new standards in audio and require new protocols to make everything work. HDMI (High Definition Multi-media Interface) is a new interface designed to simplify hooking up all your audio/video gear. For the first time ever, we can connect audio and video through one high bandwidth cable. The interface is also compatible with HDCP (High Definition Content Protection) – so you don’t have to worry about a high def DRM boogeyman.

     

    Recently, HDMI released its latest version; 1.3. Here are a few of the things HDMI 1.3 will do for you:

     

    HDMI 1.3

     

    • Higher Speeds
    • Deeper Color (up to 16-bit)
    • Makes you taller, more attractive
    • HD lossless audio support

    The source of some very good information on HDMI and support for HD lossless audio formats, the horses mouth - hdmi.org.

     

    HDMI 1.3 does, indeed, support Dolby TrueHD and DTS-HD. Many new HD DVD and Blu-ray discs have an available audio track in these high resolution lossless audio formats. But they have to be decoded to be heard properly.

     

    So, if your player and receiver have HDMI 1.3, your HD DVD or Blu-ray player can read the TrueHD soundtrack and send it in its raw, digital form to your receiver for decoding. But to enjoy the benefits of Dolby TrueHD or DTS-HD, you don’t need HDMI 1.3.

     

    Soylent Green is People!

     

    The trouble today is that all that HDMI 1.3 gear is expensive. Currently, no HD DVD or Blu-ray play supports sending the raw codec through HDMI; not even Sony’s PlayStation 3. [http://www.dvdtalk.com/hd/hdmi_13_and_you.html] Toshiba has only just announced an HD DVD player capable of sending a lossless audio bitstream in the HD-A35.

     

    But before you get depressed about your chances of hearing the new lossless audio formats, don’t despair. You don’t need HDMI 1.3. HDMI 1.1, which has been out since 2004, supports 8 channels of uncompressed high resolution audio in PCM (Pulse Code Modulation). That means, for the new lossless audio formats, HDMI 1.3 was a solution in search of a problem. But the problem doesn’t exist if your player is capable of decoding TrueHD or DTS-HD. You can let your HD DVD or Blu-ray player decode the audio codec (TrueHD or DTS-HD) for your receiver and send it via HDMI 1.1 – or better, to your receiver. You’ll not hear a single bit of difference from those players that are sending the raw codec through HDMI 1.3. Both let you hear the high res audio soundtrack in all of its lossless glory.

  • Home Theater on a Budget – Digital Surround Sound Receivers

    After buying that brand new HDTV you just want to get home and enjoy your new gear. But don’t forget the sound system. Hopefully I’ve convinced you not to buy a home theater in a box system, but if not, read my last post.

     

    Let’s take a quick look at the centerpiece to any home theater audio system, the receiver.

     

    Home Theater Receiver

     

    The receiver acts as a bridge between everything in your home entertainment system, and it powers your speakers. In short it connects everything together, which is a tall order for one box.

     

    Input/Output (I/O) is a key feature. Generally the box utilizes multiple video (and audio) inputs and a single video output to your TV. This allows you to kick back and switch between source devices on your home theater system through one remote. It’s a huge convenience.

     

    Input/Output

     

    Given today’s technology, look for receivers with HDMI input/output capabilities. But make sure your new receiver has a video output to match the video input of your new HDTV – likely HDMI.

     

    Audio Inputs

     

    A full set of 5.1 analogue audio inputs or HDMI v1.1 (or better) is a must have for your new home theater receiver. And if you’re dabbling in the high def disc formats in the future, you’ll be all set for future upgrades.

     

    Almost all current receivers can decode Dolby Digital and DTS – the audio formats found on a basic DVD. A digital audio connector from your DVD to receiver is sufficient to feed it the surround sound from DVD soundtracks.

     

    But newer audio formats (because of Blu-ray and HD DVD) are starting to hit store shelves – TrueHD and DTS-HD. With an HDMI version 1.1 (or greater), you’ll be upgrade ready if your new Receiver has HDMI version 1.1 (or greater) inputs available. Don’t believe the hype that you need HDMI 1.3 for these new audio formats.

     

    Nitty Gritty on Home Theater Receivers

     

    Home theater receivers today can do it all for less than $500, but upgrades can soar well beyond $1000 – especially high end. Quality receivers are made by Yamaha, Onkyo, and others. But NAD, Adcom, Rotel and Arcam carry the impeccable reputation of truly high end gear.

     

    Contrary to popular belief, receivers don’t contribute to sound quality. The speakers produce the sound and tonal quality, but receivers can detract by under-powering  speakers or causing distortion.

     

    Be sure your receiver can adequately power your new speakers by matching total power output of the receiver with the recommended power input range of the speakers. Receiver’s power output is measured as follows: total watts per channel continuous (RMS), 20Hz to 20 KHz. Accept no other measure of a Receiver’s power – regardless of vague “1000 watt receiver” you’ll find on some product specs. That’s simply not sufficient information.

     

    Impedance is another important measurement, but in North America all speakers and receivers deal exclusively in 8 Ohms; beware of anything else. The Federal Trade Commission requires an 8 Ohm de-facto standard for impedance.

     

    That’s covers the bare necessities for Home Theater receiver shopping in today’s market. If you’re a home heater newbie, feel free to leave a comment and ask questions.

  • Nokia Cell Phone Recall - What to do about Your Overheating Battery

    If you own a Nokia cell phone with battery BL-5C, it’s at risk of overheating. But don’t worry; the overheating cell phone batteries are not exploding, starting fires, squirting acid into the eyes of its users or razing villages to the ground. In fact, the problem is really quite mild and Nokia is firm that this is just a voluntary recall.

     

    The battery has been overheating while recharging. Nokia is playing down the effects of the overheating by saying it may only swell slightly and cause minor damage to your cell phone.

     

    The overheating 3.7 volt Lithium-ion battery is made by Matsushita and could affect some 46 million cell phones sold by Nokia. The recall will cost Nokia about 500 million dollars. Some are calling it the largest voluntary recall in the history of consumer electronics.

     

    If you have a Nokia cell phone, check the battery model and if it matches the image above, go to Nokia’s site and get your replacement.

     

    Nokia set up a temporary web page for you to enter your battery identification number (BIN) so you can find out if you’re at risk. Follow further instructions on the website.

     

    Nokia Says it’s NOT a REAL Recall / Not our Fault

     

    I’ll reiterate the important point Nokia is making on its website:

     

    Remember, this is not Nokia’s fault, it’s Matsushita’s. Nokia is not required to conduct this recall because it’s such a minor problem. Nokia is just being a proactive, good customer service company by sucking up the $500 Mil and doing the right thing for customers - before it is required by law! Let’s take care of this problem before someone gets hurt by an exploding BL-5C battery, has acid squirted into their eyes and their tiny village gets razed to the ground.

  • Home Theater in a Box, Cheap Audio Systems and Why to Avoid Them

    Getting chintzy after spending big on a big-screen TV is definitely not the way to go.

     

    Chances are, after spending upwards of $3,000 for a new 50-inch flat panel HDTV, you’ve got an amazing display device and are well on your way to an amazing home theater system. But don’t – and I can’t stress this enough – back it up with a $300 Home Theater in a Box (HTiB) audio system.

     

    Granted, not many of us are audiophiles pursuing the perfect sound, which will require us to fork over tens of thousands of dollars. That’s a luxury you can’t afford unless you have disposable wealth and plenty of time on your hands.

     

    But there is a vast sea of options between high-end audiophile gear and low-rent HTiB.

     

    Who Buys HTiB Anyway?

     

    If you’re a college student in a dorm, live on a limited budget or your audio system will be set up in a bedroom, by all means go with HTiB. It’s a quick, cheap option. You don’t have to think about what you’re buying, just set it up, plug it in and it goes.

     

    Sadly, that’s the only enduring appeal.

     

    The two big problems with HTiB are size and compatibility.

     

    Size: Speakers tend to be small and designed for rooms not much bigger than a 12-foot by 12-foot bedroom. Even with the included subwoofer, putting that system into a room the size of the average livingroom results in anemic sound quality. The included speakers are usually tiny, micro-satellites.

     

    No matter how high-tech a new set of micro-satellite speakers may be, there are certain inalienable laws in the world of physics that simply can’t be broken, despite what the manufacturer might say.

     

    • Sound is delivered through air.
    • Speaker drivers deliver sound to your ears by pushing air.
    • Tiny drivers move less air.  

    Hear me?

     

    Compatibility: The whole system is generally designed as a single unit. You can’t mix and match or upgrade components like you could if you bought them separately. In other words, you don’t really have a DVD player, you have HTiB. You don’t really have a home theater receiver, you have HTiB. You don’t really have speakers, you have … well, you get the idea.

     

    Why is HTiB so Popular?

     

    These days consumer electronics have become so complex that shopping has a steep learning curve.

     

    After wading through all the decisions that must be made when buying an HDTV, most people aren’t anxious to learn the complexities of multi-channel audio sources. Generally the big-box warehouse stores where most people buy – hence learn – aren’t relaxing places to shop.

     

    That’s why smaller business hi-fi and audio shops are much better. Staff will generally take the time to teach you because they’re usually enthusiasts themselves. 

     

    Sadly, people will continue to buy HTiB systems because it provides one quick, cheap and easy purchase.

     

    Inside one box is the simple promise of decent home theater sound quality. It’s difficult to compete with that.

     

    Next: Getting home theater audio on a limited budget. Be here or risk poor sound quality.

  • Premium Xbox 360 Still Lacks 65nm Chipset

    You'd expect cooler, new 65nm chips dubbed “Falcon” to lurk within the new HDMI version of Xbox 360, wouldn't you? But it’s not to be, at least not yet.

     

    According to a Neogaf forum user that goes by the name of Wonderkins, the new Xbox 360 Premium has only the old “Zephyr” chipset. The new quieter BenQ DVD ROM drive is a nice plus but you’ll have to wait on the cooler chips.

     

    Speculation from Wonderkins is that this early run of HDMI Xbox 360s doesn’t include the Falcon chip yet, but later runs will. Here at GizmoCafe, we're hopeful that Falcon will make an appearance soon. Wonderkins suggests you check the multi-barcode sticker on the side of your Xbox 360. Make sure it’s the HDMI version and if it’s lot 0727, it’s not going to include the 65nm chipsets. Wonderkins says it’s possible that subsequent lot numbers (i.e., lot 0728, and onward) will include the new cooler chipsets.

     

    If you’re on the hunt for your new and improved Xbox 360, good luck and I’ll continue to scour the web for more clues.

     

    Special thanks to Wonderkins for posting the images on Neogaf. Go check out the at all the images of the new Xbox 360 innards for yourself.

More Posts Next page »