What are MP3 files and how do they work?
MP3 music download. If you have read How CDs Work, you understand how musical sounds can be turned into numbers and recorded on a CD. A CD stores music using 44,100 samples per second, 16 bits per sample and two channels (for stereo sound). This means that a CD stores about 10 million bytes (megabytes) of data per minute of music on the CD. A three-minute song therefore requires 30 megabytes of data.
If you have ever tried to download files on the Internet, you know that 30 megabytes is huge. If you are using a modem to connect to the Internet, 30 megabytes of data would take several hours to download.
MPEG (The Moving Picture Experts Group) has developed compression systems used for video data. For example, DVD movies, HDTV broadcasts and DSS satellite systems use MPEG compression to fit video and movie data into smaller spaces. The MPEG compression system includes a subsystem to compress sound, called MPEG Audio Layer-3. We know it by its abbreviation, MP3.
How Plasma TVs And LCD TVs Differ
The buying of large-screen TVs has absolutely skyrocketed lately. It seems that everyone wants one – and with good reason. The large-screen TV has come a long way from those faded-out behemoths of old that took up half your living room and never really produced a picture of decent quality. Now, however, especially in combination with HDTV, you can get not only a nice, large picture, but a crisp, clean one too.
Once you decide that you’re ready for a large-screen TV, you quickly discover that you only really have two main options, a plasma TV or an LCD TV. Plasma TVs were first on the scene, but the recent mass production of LCD TVs by major manufactures has put LCD TVs pretty much on equal footing with plasmas. That said, you will still have to make a choice.
If you’re like most people, you not only have no idea how the two differ, you don’t even know the areas you should be considering in order to determine how they differ. But they do indeed differ, and knowing the difference is extremely important if you’re going to get the TV that’s right for you.
Why You Should Buy A Plasma Television
The plasma television has many advantages and benefits for you and your entertainment needs and wants. The plasma TV gives you incredible picture quality, it has a sleek design, and it is HDTV compatible.
Plasmas provide sharper images and more vibrant colors. You can display both HDTV and DTV signals as well as computer signals such as XGA, SVGA, and VGA.
Plasmas Superior to Both CRT’s and LCD
Plasma screen televisions provide sharp, clear pictures, plus no image distortion. CRTs can’t match this. Plasma TVs have brighter pictures and provide a better viewing angle at 160 degrees, than LCDs. For the best technology in display panels, choose plasma technology.
