Telex 38109-977 manual Spl

SMPTE/EBU Time Code

Sound

Sound System

Special List

SPL

Squawk (Versus Matrix)

Stacked Key

Stereo

Studio Camera

Studio Talkback

Supra Aural

Headset

Supercardioid

Switcher (usually the Technical Director)

System

Recorded on videotape or audiotape. Provides a time address for each video frame in hours, minutes, seconds, and frame numbers. Requires a SMPTE code generator to create. Some RTS™ Systems audio equipment can be used to distribute SMPTE time code. Consult RTS™ Systems Engineering Department for details.

Variations in pressure (usually air) caused by vibrating bodies. Examples are air columns (pipe organs), strings (violins), vocal cords and larynxes (humans).

A combination of transducers, amplifiers, and interconnections. A simple sound system could consist of a microphone or pickup and an amplifier and a headphone or speaker.

A special list is a means for a keypanel operator to talk and/or listen to several unrelated destinations using a single key. Special lists are useful for group call or zone paging. Special list members are defined in the intercom configuration software. Once a special list has been configured, it can be assigned to a keypanel key. A special list is a group of intercom ports that a keypanel operator can talk or listen to by activating a single key. Special lists are typically used for paging, all call, group call etc. Special lists have default names SL01, SL02 etc. These names can be changed using Other Alpha setup. You define the members of the special list using Special List setup. Once a special list has been set up, you typically assign it to a keypanel key using Keypanel setup. The keypanel operator can then activate the special list key to talk or listen to all members of the special list. IMPORTANT: Do not confuse special lists and Party-Lines. A special list is used when a keypanel operator needs to occasionally talk or listen to a group of intercom ports that are otherwise unrelated. A Party-Line is typically used when several users of non-keypanel devices (such as belt packs or camera intercoms) are engaged in a specific common activity and they need to talk and/or listen to each other all the time. Keypanels are almost never members of Party-Lines (although they can be). However, a keypanel key can be assigned to occasionally talk or listen to a Party-Line if desired. Just remember: Party-Lines are primarily set up for Party-Line members, with occasional access by keypanel operators, while special lists are set up exclusively for keypanel operators to talk or listen to several unrelated intercom ports. For specific information about special list setup, search for “special list” in AZ™EDIT help.

Sound Pressure Level. Sound is alternating pressure waves. Sound Pressures (amplitudes) are measured in pascals. The amplitudes can be converted into decibels using an equation. These new numbers are Sound Pressure Levels.

Aterm to differentiate two kinds of point-to-point intercom. A squawk type intercom allows instantaneous momentary communication. The Model 810 in the “squawk” configuration (momentary buttons only) is a pure squawk system. The Model 810 is available in a “matrix” configuration (alternate action buttons, electrically the same).

See the descriptions for talk level, talk level 2.

Recording, transmitting or reproducing a sound source with two or more separate sound pickups. The recording has two or more separate channels.

Used both in studios and remote locations. A heavier, larger camera mounted on a pedestal or other suitable mount. Generally has better quality pictures than a lighter, smaller field camera. A loudspeaker system from the control room to the studio. Also called SA (Stage Announce, or Studio Announce).

A headset where the earpieces rest on the ear.

A microphone pattern with a maximum rejection at 125 degrees off axis. A compromise design between the cardioid and the hypercardioid.

Person who operates the switcher to switch the video; the switching device itself.

1.An assemblage or combination of things or parts forming a complex or unitary whole. 2. The structure or organization of society, business, or politics. 3. The interrelationship of a collection of interdependent elements and processes.

148 H a n d b o o k o f I n t e r c o m S y s t e m s E n g i n e e r i n g