Site Updates: Weekly glossary updates

Rich Fiscus
14 Feb 2008 21:15

Another week has gone by, and as I threatened last week I'm continuing to update the Glossary. Here are the highlights of my updates over the last week.

• MPEG-4 Part 10 - MPEG-4 Part 10 is a standard for video Compression. MPEG-4 Part 2 (ASP and SP), which includes implementations like DivX and XviD, was originally designed with video conferencing and other relatively primitive types of video. MPEG-4 Part 10 was designed specifically with High Definition (HD) video... (Read More)
• 3/2 Surround - 3/2 Surround refers to either a Surround Sound encoding format utilizing 3 front channels (Left, Right, and Center) and 2 rear or Surround channels (Left Surround and Right Surround) or a matching speaker configuration... (Read More)
• 5.1 Surround - 5.1 Surround refers to a 3/2 Surround system that includes a LFE (Low Frequency Effects) Channel used for a subwoofer... (Read More)
• Matrix Surround - Surround Sound that's created by using a matrix of two or more channels is called Matrix Surround... (Read More)
• Oversampling - The Nyquist-Shannon Sampling Theorem used as the basis for all analog capturing requires a sampling Frequency equal to slightly more than twice the Frequency of the analog signal. In other words, to accurately Sample 20kHz (20,000Hz) audio you need a Sampling Frequency of at least 40.1kHz (20,000 x 2 + 1). Oversampling refers to sampling at a higher frequency than the Nyquist Frequency... (Read More)

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