Aperture Science Speaker System

{{Youmayr|Speaker System|Announcer|Aperture Science Announcement System}}
{{Portal Cleanup}}
{{Technology Infobox
| image=FileSpeaker system.jpg|250px
| image2=FileSpeaker system simple.jpg|100px
| name=Aperture Science Speaker System
| affiliation=Aperture Science
| type=WikipediaPublic address|Public address system
| usedby=GLaDOS
| entity=prop_dynamic + generic_actor
| designer=
| voicedby= Ellen McLain 
| hidei=
| hideu=
| hideg=

The '''Aperture Science Speaker System''' is a public address system used by GLaDOS in ''Portal'' to deliver announcements throughout the Aperture Science Enrichment Center. it may also be a part in the Aperture Science Announcement System.

FileSpeaker system maintenance pistons.jpg|Speaker system device with screen in a maintenance area.|200px|left|thumb

The communications are relayed by speakers spread through the laboratories. The speakers always come in two, and they are sometimes accompanied by a screen (although they could also consist of a speaker and a microphone, possibly to be activated by the small button always present under it). These screens are never used by GLaDOS during the game, hinting they were originally used by the Aperture Science scientists. Instead, they are completely black, with an Aperture Laboratories logo constantly fading from orange to yellow on the bottom left, acting like some sort of screensaver (the button present under the speakers follows the same color fade).

Throughout the Test Chambers, the communications are apparently made in a different way, as no speakers can be found. Aperture Science Security Camera|Security cameras also complete the surveillance.

The devices are often found near doors, for convenience or possibly because they have other abilities, such as locking doors.

*This is the ''Portal'' equivalent of ''Half-Life''’s Black Mesa Announcement System and ''Half-Life 2''’s Breencast.
*Attempting to interact with a Speaker System device will not give any results as Chell is never meant to be able to use one other than listen to GLaDOS.
*Its proper name is unsure. The current name is based on that of the models, "speaker_system" 01 and 02.
*The models come in the speakers alone ("speaker_system_02"), or the speakers and the screen ("speaker_system_01"). They also come in "clean" and "dirty" versions, depending on the locations they are seen.


FileSpeaker system maintenance fence.jpg|Speaker system device with a screen in a maintenance area.
FileSpeaker system and grid.jpg|Speaker system device without screen in an office area, beyond a Aperture Science Material Emancipation Grill|Material Emancipation Grill.
FileSpeaker system open door.jpg|Speaker system device without screen in an office area.
FileSpeaker system door signs.jpg|Ditto.
FileSpeaker system dark.jpg|Ditto, with screen.
FileAperture Labs speaker system orange.svg|Orange Aperture Laboratories logo seen on the screens.
FileAperture Labs speaker system yellow.svg|Yellow Aperture Laboratories logo seen on the screens.

==List of appearances==

*''Portal'' {{1st}}
*''Portal Still Alive'' {{Nc}}


==See also==
*Aperture Science Announcement System
*Black Mesa Announcement System
CategoryAperture Science technology
CategoryPublic address systems