Harmonic ProView 7000

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Glossary

Numerics  A B C  D E F G H I J L M N O P 

Q R S T U V W Y 

SPTS

MPEG-2 Single Program Transport Stream.

Symbol Rate.

SRC

Seamless Rate Change. The ability to change video bandwidth in a circuit without causing

disturbance, such as coding artifacts or buffer exceptions.

Statistical Multiplexing Pool

A group of programs that share a set amount of bandwidth. Each program is allocated bandwidth

based on the complexity of the program during a specified time interval. The program may be

allocated a different amount of bandwidth during the next interval based on its complexity and

the complexity of the other programs in the pool.

status bar

The status bar, usually located at the bottom of the application window, indicates the current

selection and displays explanatory text for toolbar and menu selections.

STB

Set Top Box.

STC

System Time Clock. This clock is the common 27-MHz clock that is used to create both PCRs

and system clock references (SCRs).

stereo

A stereo signal consists of two audio signals that are directly related to each other, one signal

representing the left side of the soundfield and the other the right side.

STS

System Time Stamp. A 24-bit, 90-kHz counter that is referenced each time a packet arrives at the

input port.

stuffing byte

A null byte with a hexadecimal value (usually 0xFF) used to fill out the length of MPEG-2

sections and packets.

stuffing type

Indicates the type of stuffing byte (usually 0xFF), as either Section or adaptation field. Section

stuffing adds stuffing bytes (usually 0xFF) in the

TS packet at the end of the table section to make

up the packet length. Adaptation field stuffing adds stuffing bytes to the adaptation field at the

beginning of the TS packet so the section ends on the last byte of the TS packet.

Harmonic ProView 7000 - Page 223