->''Woah! That's cheating, sneaking up. Do you have your legs on silent?''
-->-- '''The Tenth Doctor''' [[SubvertedTrope to Cybermen]], "The Next Doctor"

This is a SoundFX trope relating to any robot, {{cyborg}}, MechanicalLifeform or PoweredArmor that makes mechanical creaking sounds when they move around. Most RealLife robots tend to make loud snaps and hissing noises due to the hydraulics or compressed air they use for movement and creaking noises mean that somebody has to pick up the oilcan ''stat'' unless they fancy replacing components. In the case of dangerous robots in fiction, it ramps up the tension, but also makes it easier for the protagonists to run or hide.


[[folder: Anime And Manga ]]

* The Franchise/{{Gundam}} Franchise has a very specific set of sounds for nearly every move a [[HumongousMecha Mobile Suit]] makes.
* Chachamaru in the ''Anime/NegimaSecondSeries'' second series had robotic noises added to accompany her movements.
* While the Combat {{Cyborg}}s in ''Anime/MagicalGirlLyricalNanohaStrikers'' are normally silent, body parts that have been damaged beyond a certain point will emit mechanical whirring sounds when they move, as shown in the hospital scene after the massive terrorist attack by Jail.
* Dorothy from ''Anime/TheBigO'' makes very smooth mechanical sounds when she moves [[DependingOnTheWriter Depending on the Episode]]


[[folder: Fanworks ]]

* ''WebVideo/FriendshipIsWitchcraft'' features in episode 4 a discussion about robots. Episode 5 focuses on one, and her servos could use some maintenance. Not that anyone cares.


[[folder: Film ]]

* ''Franchise/StarWars'' is guilty of this, with most civilian droids making odd pneumatic whining sounds whenever they move and military droids that have an inexplicable clanking sound accompany their every step, even while walking on grass.
* Although not technically a robot, [[PoweredArmor the powerloader]] used by Ripley in ''Film/{{Aliens}}'' makes satisfying hydraulic whirrs and clomps as it moves around.
* [[Film/ShortCircuit Johnny 5]] makes all kinds of noise when he moves around, but it's natural, since he's animatronic.
* Unlike the clanking, whirring robots usually represented by this trope, [[RidiculouslyHumanRobots Ava]] from ''Film/ExMachina'' makes a rather smooth buzzing sound when she makes any significant movement, and she makes no noise at all with small movements. Even further, [[spoiler:she and her "sisters" can cover up the noise when covered up by a sheath of false skin]]. That actually becomes part of a plot point.
* Most of the machines in ''Film/RobotAndFrank'' make extranious noise while moving.
* Spencer from the movie ''Film/StarKid'' makes note of this when attempting to sneak around his house late at night while wearing the cyber-suit.


[[folder: Gamebooks ]]

* In the ''Star Challenge'' books 2-Tor, your robotic companion, follows this trope to a T. The thing is very often described not only beeping or clicking, but also with flashing lights (at least it moves silently, since it hovers.)


[[folder: Literature ]]

* In the first ''Literature/TheHitchhikersGuideToTheGalaxy'' book, Marvin deliberately makes clanking and labouring noises whenever he moves.


[[folder: Live Action TV ]]

* The bomb disposal robots in ''Series/BombPatrolAfghanistan'' are noisier than you would expect of a military gradr machine. Then again, it is designed to be remotely operated an possibly make [[HeroicSacrifice heroic sacrifices]] so the humans won't have to get up close and personal with [=IEDs=].
* The Cybermen in ''Series/DoctorWho''. Lampshaded in one episode when they somehow manage to sneak up on the Doctor and he asks them if they've "got their legs on 'silent'".
* In ''Franchise/StarTrek'', we have Borg drones that make mechanical and electrical noise when moving, or [[YouWillBeAssimilated assimilating]].
* Franchise/{{Robocop}} in [[Series/RoboCopTheSeries the TV series]]. When walking he only made stepping thumps, but moving anything else made mechanical noises.
* ''Series/{{Westworld}}''. Dr Ford is introduced talking to an early model android that's stored in the basement. Unlike the flawless cyborg models currently being used, it moves with jerky, whirring movements.


[[folder: Music ]]

* The robots of Music/SteamPoweredGiraffe let out occasional hydraulic hisses and whirrs, particularly when they start up or power down.


[[folder: Radio ]]

* Marvin from ''Radio/TheHitchhikersGuideToTheGalaxy'' does this.
* The radio adaptation of the Twilight Zone episode "Uncle Simon" embodies this trope.


[[folder: Toys ]]

* Most of the ''Toys/{{Bionicle}}'' web animations have this for ''all'' the characters, even though they're partly organic and technically not robots. (Including [[FridgeLogic a few who are actually organic beings wearing armour]]). Averted in the DirectToDVD movies, however (save for a handful of instances).
* Even though the ''WesternAnimation/{{Mixels}}'' are all cyborg-esque in design, the only ones to make these noises are the steampunk-themed Klinkers, who creak with metal and make hydraulic hisses when they move.


[[folder: Video Games ]]

* Most robotic constructs in ''VideoGame/WorldOfWarcraft'' are rather clanky. Justified because most of them are hostile or potentially attackable [=NPCs=], and all [=NPCs=] have a combat noise. Robots are just noisier than most.
* There are creaking/squeaking robot enemies in the video games ''VideoGame/BanjoKazooie'' and/or ''Banjo-Tooie''.
* [[{{Cyborg}} The Arachnotrons, Spider Mastermind and the Cyberdemon]] from ''VideoGame/{{Doom}}'' make a hell of a noise when they walk around on their metal legs.
* ''VideoGame/{{Tekken}}'''s Jack-type cyborgs make a satisfying crashing noise when knocked over, although they're quiet when moving.
* ''Franchise/TheElderScrolls'': The various Dwemer MechaMooks (known as "[[http://elderscrolls.wikia.com/wiki/Animunculi Animunculi]]" in the lore), as seen in ''[[VideoGame/TheElderScrollsIIIMorrowind Morrowind]]'' and ''[[VideoGame/TheElderScrollsVSkyrim Skyrim]]'', make "clanky" metal-on-stone or metal-on-metal sounds as they move. Even when still, they'll make noise by releasing steam.
* Omega makes these only in ''[[VideoGame/SonicTheHedgeHog2006 Sonic 2006]]''.
* The various Robot Mercenaries of Grey Mann's army in ''VideoGame/TeamFortress2'''s Mann Vs. Machine mode clatter, sputter, and clank as they move around. [[http://youtu.be/C4cfo0f88Ug?t=2m Most obvious in the trailer video]] but they're still fairly noisy in the game. This is masked somewhat by their tendency to babble constantly.
* ''FiveNightsAtFreddys'': One of the most terrifying examples of this trope. We're all familiar with "SKREEEE!", "REARGHHHH!", "HISSSSGRH!" and "SGROURGHHH!" Otherwise, it's rather DownPlayed tough, while the animatronics do make other noises as they stalk you through the nights, they can also be quite sneaky as well.
* ''VideoGame/WarcraftIII'': Goblin Shredders (huge mecha used for rapid harvesting of lumber, sometimes used against squishier targets) are so noisy even their unit responses consist of nothing but metallic grinding and hydraulic noises (with the occasional giggle from the pilot).


[[folder: Western Animation ]]

* In ''Franchise/{{Transformers}}'', you sometimes (different series are different on this, and many things) hear sounds as the robots move. ''WesternAnimation/TransformersAnimated'' in particular has fun with it, with high-pitched whirring noises that say 'high tech' for most of them, but the old geezer of a medic, Ratchet, makes much creakier noises.
* {{Subverted}} in ''TheSimpsons'' episode "Lisa's Wedding": we FlashForward to the far future [[IWantMyJetpack (2010)]] and see what we think are a group of robots clanking by, but it's really just several college kids going to ''Film/TheWizardOfOz'' auditions in Tin Man costumes.