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1When a person [[AppliedPhlebotinum taps into some mystical wellspring of power]] [[note]]or higher levels of testosterone[[/note]], a common side effect is that their voice immediately plummets several octaves. Naturally, this is [[OhCrap a tell-tale sign]] that copious amounts of ass are about to be kicked.
2
3When pulled off correctly, the results can be spectacular.
4
5May be justified if the power upgrade comes with HulkingOut or transforming into a OneWingedAngel: being larger probably corresponds with longer vocal chords, which produce deeper sounds.
6
7Characters who are not, strictly speaking, examples of this trope may consciously alter their voices to sound deeper (or sexier) while in their heroic/villainous personas, in order to sound more impressive (or [[DistractedByTheSexy distracting]]) and to protect their [[SecretIdentity identities]].
8
9SisterTrope to PowerEchoes and BaritoneOfStrength, and the neutral cousin of EvilSoundsDeep and VoiceOfTheLegion; indeed, if WithGreatPowerComesGreatInsanity, this trope can come hand-in-hand with the preceding two tropes. A SecretIdentityVocalShift may appear to be this if the voice for the superhero identity is deeper than their civilian version (which is usually the case). See also HeavyVoice.
10----
11!!Examples:
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13[[foldercontrol]]
14
15[[folder:Anime and Manga]]
16* In ''Manga/MyBrideIsAMermaid'', UnluckyEverydude Nagasumi turns into a [[Manga/FistOfTheNorthStar Kenshiro]] {{expy}} while under the influence of the Song of Heroes. Or just when [[RageBreakingPoint sufficiently pissed off]].
17* ''Anime/YuGiOh'':
18** Any time Yugi and his Millennium Puzzle-residing alter-ego do a MentalFusion, expect Yugi's voice to plummet faster than [[Ride/DisneyThemeParks the Tower of Terror]]. This goes double for the dub, [[CompellingVoice thanks to none other than]] '''[[Creator/DanGreen DAN]] [[MemeticMutation GREEN]]!''' ([[VocalEvolution and it gets deeper over time]]). The voice is actually the Pharaoh's voice and is naturally that deep (so Yugi's just "borrowing" it) and in ''Anime/YuGiOhGX'', older!Yugi is shown to have the exact same voice. [[SugarWiki/FunnyMoments Hilariously]] [[LampshadeHanging lampshaded]] in the first episode of ''WebVideo/YuGiOhTheAbridgedSeries'' by Kaiba.
19--->'''Kaiba:''' "Wait. Did your testicles just drop in the last five seconds or something? What the heck happened to your voice?"
20** [[SealedEvilInACan Yami Bakura]] and [[SplitPersonality Yami Malik]] have also deeper voices than their host/other personality.
21* In ''VisualNovel/FateStayNight'', Archer's voice in comparison to [[spoiler:Shirou's.]]
22* ''Manga/{{Bleach}}'':
23** This happens to the Visored when they put on their [[SuperpoweredEvilSide Hollow masks]].
24** ''[[InvertedTrope Inverted]]'', whenever Ichigo transforms into a Hollow. His voice gets ''higher''.
25** Inverted again, with [[spoiler:Kaname Tousen]] whose voice gets higher after activating his Resurrección.
26* In ''Manga/RosarioPlusVampire'', Inner Moka has a much deeper voice than Outer Moka. Ironically, Inner Moka is the real one, that means it's her natural voice.
27* ''Manga/{{Naruto}}'':
28** Naruto's voice gets noticeably deeper while using Kyuubi's chakra.
29** Like Ichigo above, Juugo's voice [[InvertedTrope gets higher]] when he uses Level 2 of the Cursed Seal's power.
30* ''Manga/DragonBall'':
31** Goku and (Teen) Gohan's voices become noticeably deeper when they transform into Super Saiyan 2 and 3 respectively.
32** Goku's scream as he transforms into a Super Saiyan for the first time. More noticeable in ''[[Anime/DragonBallZKai Kai]]''.
33** In the English dub (original and ''Kai''), Freeza's voice gets progressively deeper as he transforms -- and then crosses the BishonenLine along with the rest of him, reverting to something like his first form.
34** In ''Anime/DragonBallGT'', Goku's voice is as its lowest pitch when he is Super Saiyajin 4.
35** In ''Anime/DragonBallSuper'', Kale is a rare female example in the series. Her base form is a high-pitched, [[ShrinkingViolet meek-sounding]] voice, but her voice as a [[HulkingOut Super Saiyan Berserk]] is huskier and more sensual.
36* In ''Manga/FairyTail'', Mirajane Strauss's voice gets deeper while using her Take Over Satan Soul.
37* Tsunayoshi Sawada from ''Manga/Reborn2004'' when in [[TranquilFury Hyper Dying Will Mode]].
38* [[FriendlyNeighborhoodVampire Seras Victoria]] from ''Manga/{{Hellsing}}'' sounds much deeper after [[spoiler:drinking Pip's blood]].
39* In the DarkMagicalGirl anime ''Anime/DayBreakIllusion'', Akari's voice is deeper when she's in her Tenebrae form.
40* [[Anime/FutariWaPrettyCure Honoka Yukishiro]] and [[Anime/YesPrettyCure5 Nozomi Yumehara]] from the ''Anime/PrettyCure franchise'' get noticeably deeper voices in their Cure forms, Cure White and Cure Dream, respectively. [[Anime/DokiDokiPrecure Aguri Madoka]]/[[Anime/GlitterForceDokiDoki Natalie Miller]], too, but in her case, it's justified because Cure/Glitter Ace is her OlderAlterEgo.
41* ''Anime/{{Symphogear}}'':
42** Hibiki and Chris have noticeably deeper singing voices when they are in IGNITE Mode.
43*** Whenever Hibiki and Maria (or basically anyone) fail to go into IGNITE Mode, they go berserk, turn completely black and become more bestial. Their voices drastically deepen.
44** In general, the heroes have mezzo-soprano singing voice when [[ByThePowerOfGrayskull they invoking the holy chants]], despite several like Hibiki and Kirika having a higher register when talking or singing normally.
45* Invoked in ''Anime/VividStrike''. [[DarkMagicalGirl Rinne's]] voice is noticeably deeper when she's in public as part of her attempt to [[NeverBeHurtAgain avoid showing weakness]]. [[BeneathTheMask When her mask starts to crack]] (or if she's in the presence of [[HappilyAdopted her parents]]) it returns to its natural high pitch.
46[[/folder]]
47
48[[folder:Comic Books]]
49* In ''ComicBook/CloakAndDaggerMarvelComics'', Tyrone Johnson's voice became much lower when he changed to his Cloak superhero identity.
50* The comic versions of ComicBook/GhostRider all get deep, scary voices once they change from their human identities to the Rider. Typically, it's represented by a change in their speech bubbles (speaking in italics, with the bubbles now outlined in black fire, or speaking in white text in black bubbles, and so on).
51* Some incarnations of ComicBook/{{Superman}} actually do this as a deliberate affectation to make himself sound less like Clark Kent.
52* ComicBook/TheIncredibleHulk and his cousin ComicBook/SheHulk both are noted for having deep voices when they transform.
53[[/folder]]
54
55[[folder:Fan Works]]
56* Averted in ''Fanfic/{{Nexus}}''. When Jack's in his demon form, his voice has a metallic edge; much like the Autobots.
57* ''Fanfic/ChildrenOfAnElderGod'': When [[spoiler:[[ArchnemesisDad Gendo and Yui]] seize the power stolen from the [[Franchise/CthulhuMythos Outer Gods]] by the main characters]], their voices plummet and boom when they speak.
58* In ''Fanfic/ThousandShinji'', when [[spoiler:the main characters ascend to godhood]], their voices similarly plummet and boom when they talk to their followers.
59* ''Fanfic/AdviceAndTrust'': When Rei uses her hidden power, her voice becomes throatier and deeper, and she actually growls.
60* In the ''VideoGame/{{Undertale}}'' fanfic ''Fanfic/{{Visiontale}}'', [[https://archiveofourown.org/works/8779618/chapters/20125687 posted on]] Website/ArchiveOfOurOwn, the deeper a monster's voice, the stronger they are magically. Sans also indulges in this when he is about to give someone a bad time by casting particularly powerful magic.
61[[/folder]]
62
63[[folder:Films -- Animated]]
64* In ''WesternAnimation/TheLittleMermaid1989'', Ursula, the movie's BigBad, already had a [[EvilSoundsDeep pretty deep voice]]. After she uses the trident's magic to empower herself and [[AttackOfThe50FootWhatever grow to a humongous size]], her voice becomes ''downright demonic''. This is more noticeable in the Latin American Spanish dub of the film.
65* ''WesternAnimation/MyLittlePonyEquestriaGirlsFriendshipGames'': Zig-zagged. [[spoiler:Human!Twilight's voice gets deeper when she initially transforms, and returns to her usual voice when Spike reminds her of herself. Sunset's voice is unaffected when she transforms.]] Only evil power makes your voice deep. The first ''WesternAnimation/EquestriaGirls'' played this trope straight when the then-evil Sunset transformed into a she-demon under the power of Princess Twilight's crown.
66* ''WesternAnimation/TurningRed'': [[spoiler:Ming's voice noticeably drops several octaves when in her [[AttackOfThe50FootWhatever Kaiju-sized]] red panda form]].
67[[/folder]]
68
69[[folder:Films -- Live-Action]]
70* Blackheart from ''Film/GhostRider2007'' gets this magical power once he summons 1000 souls into his body. That may have been the only benefit from the whole deal; unless standing around getting blown up so you can slowly reform again is highly sought after in demon society.
71* [[PlayedForLaughs Done for humorous effect]] in ''Film/BatmanForever'':
72-->'''The Riddler:''' "For if knowledge is power, then '''''[[AGodAmI A GOD AM I]]!'''''" ({{beat}}) "Was that over the top? I can never tell!"
73* Galadriel's voice gets pretty deep (and reverbed) in ''Film/TheLordOfTheRingsTheFellowshipOfTheRing'' when she is ''imagining'' what she would do with the kind of power provided by the One Ring. However, Galadriel is already plenty powerful, so all the deep voice and special effects that went with it were her own doing.
74** In ''Film/TheHobbit'', it seems to be her standard way of casting spells, including unnatural lighting and DroneOfDread.
75** In the book, her normal speaking voice is described as "clear and musical, but deeper than woman's wont".
76** Her granddaughter Arwen is similar. Liv Tyler plays her as generally having a deeper voice than Tyler's natural one, probably because of this trope. Her voice becomes deeper yet (and also reverbed) when she casts a spell at the Ford of Bruinen to summon a flood, and ''much'' deeper when Frodo, half in the spirit world after being wounded with a Morgul blade, is able to perceive her spiritual power as an elven princess.
77* When [[spoiler:Tia Dalma]] once again becomes the sea goddess Calypso in ''Film/PiratesOfTheCaribbeanAtWorldsEnd'', her voice grows extremely deep and reverbed. It could be because she was also extremely pissed off. [[AttackOfThe50FootWhatever Growing to a size so massive]] that she dwarfed the ''Black Pearl'' and all of its crew might've also had something to do with it.
78[[/folder]]
79
80[[folder:Literature]]
81* The High Seekers in the ''[[Literature/{{Emberverse}} Novels of the Change]]'', controlled by some unearthly force, sometimes go so deep that it's represented by boldface. This usually heralds the good guys getting a royal spanking.
82* Subverted in ''Literature/ArtemisFowl'', when the characters expect this, but get a falsetto instead.
83-->'''Number 1:''' "I know. Less airy, more fairy, right?"
84* In the Franchise/StarWarsExpandedUniverse there are a few times when the SentientCosmicForce decides to convey something to a young Force-Sensitive in a less ambiguous fashion than usual, and actually takes on a voice that seems to come from deep inside of the person. This either sounds like someone the person knows who has died and joined with TheLifestream, or it sounds a lot like ''them''.
85** ''Rebel Force'' has Luke Skywalker think that the voice sounds like his, but deeper, older, more certain. He assumes it's his father's voice encouraging him from beyond the grave. [[LukeIAmYourFather We know it's not.]]
86** ''Literature/GalaxyOfFear'' has Tash Arranda similarly encouraged and hearing an older-Tash voice. Before that, the Force swells in her when she's commanding someone to stop and not kill [[spoiler:her uncle]] and she doesn't recognize it as hers -- it's lower, commanding, and forceful.
87%% * Zoey from the ''Literature/TheHouseOfNight'' series experienced this during a certain [[BigLippedAlligatorMoment infamous scene]] in ''Chosen''.
88[[/folder]]
89
90[[folder:Live-Action TV]]
91* Willow in ''Series/BuffyTheVampireSlayer'' gets amped up on mystical magic powers and Creator/AlysonHannigan speaks the character with a ''slightly'' lower and slower tone and speed.
92* ''Series/DoctorWho'':
93** In [[Recap/DoctorWhoS4E9TheEvilOfTheDaleks "The Evil of the Daleks"]], the Emperor Dalek has a noticeably deeper voice, modulated at a lower frequency, than the other Daleks. (Avoided with the normal Supreme Daleks, who tend to have ''higher-pitched'' voices than the other Daleks, making them sound like they're on the verge of snapping from stress.)
94** There are some clever {{justified|Trope}} examples in [[Recap/DoctorWhoS14E5TheRobotsOfDeath "The Robots of Death"]], when the Doctor gets Leela to release helium into a room in order to rob Taren of his CompellingVoice. He takes full command of the situation, the villain and Leela get really squeaky and the Doctor mocks them for it, but his own voice remains as deep and velvety as ever (Power ''Keeps'' Your Voice Deep). Apparently, being a Time Lord gives him 'a larynx that can put up with anything', though RuleOfCool is the obvious [[WatsonianVersusDoylist Doylist factor]]. We also get Lack of Power Makes Your Voice High, as the amount of gas and thus the effect of the helium on Taren's voice increases as Taren loses control of his robots and thus his power, until he literally squeaks himself to death.
95* Chase Davenport in ''Series/LabRats'', whenever his "Commando App" is activated and he becomes [[SuperpoweredEvilSide Spike]]. In the "Spike vs. Spikette" episode of ''Bionic Island'', Kate and Bree have their own Commando Apps installed and activated, with their counterparts ([[MamaBear Spikette]] [[HairTriggerTemper and]] [[TheLadette Spikerella]]) also in possession of boomingly deep voices.
96* ''Series/{{Merlin|2008}}'' gets into this when Merlin begins speaking Dragon-language. His regular magic doesn't usually deepen his voice, but the dragon calls do.
97* ''Series/RedDwarf'': When Rimmer becomes the Mighty Light (a diamond light form which gives him superpowers) in "The Promised Land", his voice becomes notably deeper as a result.
98* ComicBook/DoctorFate in ''Series/{{Smallville}}'' sounds deeper than Kent Nelson.
99* UsefulNotes/MargaretThatcher was depicted this way in satirical puppet show ''Series/SpittingImage''. In contrast, the male members of her cabinet ('the vegetables'') were given thin, weedy, ineffectual voices.
100* Anyone in ''Series/StargateSG1'', when possessed by a Goa'uld symbiote, although it's actually the Goa'ulds invoking the trope. They can use normal voices if they want to, but they want people to think that they're all-powerful gods, so they change their voice to match people's expectations. And among the rebel Tok'ra faction, who share control rather than dominating their human hosts, the different voices are used simply to show whether it's the host or the symbiote who's speaking at the moment.
101* Bailey from ''Series/TheSuiteLifeOnDeck'' when she's possessed by Princess Xaria. This also happens to London in the same episode, but as a closing gag.
102* ''Series/{{Supernatural}}''[='s=] Creator/MishaCollins made a deliberate decision to have his voice as Castiel, the extremely powerful angel, be deeper than his normal voice--it was a one-shot character, right? Nearly a decade later, he kind of regrets it, as he and his co-stars hilariously explain [[https://www.youtube.com/watch?v=cmDJ7DqJWTk here]] He got to use his normal voice in ''one episode'', in which the man Castiel has been using as a vessel appears.
103[[/folder]]
104
105[[folder:Radio]]
106* [[OlderThanTelevision This trope's roots may have sprouted from]] the radio drama ''Radio/TheAdventuresOfSuperman'', in which the same voice actor used his tenor range for Clark Kent and his baritone range for the superhero. Most exemplified when, in order to show that Clark Kent was changing outfits, the voice actor would start out in his Clark Kent tenor saying "This looks like a job", then his voice would drop nearly an octave and he'd finish with "for Superman!" This may have been the inspiration for the trope cropping up in other works as part of how Clark maintains his SecretIdentity with [[ClarkKenting no props except the glasses]].
107[[/folder]]
108
109[[folder:Video Games]]
110* [[VideoGame/OnimushaDawnOfDreams (Kajin no) Soki]] in ''VideoGame/TatsunokoVsCapcom''. For his [[LimitBreak Level 3 Hyper Combo]], he assumes his [[DarkIsNotEvil Black Oni]] [[PhysicalGod Onimusha]] [[SuperMode form]], donning a {{mask|OfPower}} with {{red eyes|TakeWarning}} and [[MysticalWhiteHair a mane of white hair]]. His voice goes from "BoisterousBruiser" to "Holy hell! He sounds like {{Satan}}!" Said voice is also [[PowerEchoes booming]] and [[TheUnintelligible incomprehensible]], but his voice drops from bass to baritone in no time flat.
111* ''VideoGame/DevilMayCry''
112** In ''VideoGame/DevilMayCry2'', when Dante's [[DesperationAttack health is at critical levels]] (his lifebar will be flashing red), activating his [[SuperMode Devil Trigger]] will cause Dante to morph into a stronger, bigger, [[NighInvulnerability invincible]] alternate form (Devil Trigger Majin Form) able to mow do ''anything'' in the game with ease. While all of Dante's Devil Triggers [[PowerEchoes echo]] ([[EarlyInstallmentWeirdness except for in the first game]]), this one has a much deeper, demonic sounding voice.
113** Arius, the BigBad of ''2'', gets a deeper voice when [[spoiler:he's killed and revived as a demon by [[GreaterScopeVillain Argosax's]] power.]]
114** In ''VideoGame/DevilMayCry3DantesAwakening'', [[spoiler:Arkham]] manages to unlock the dormant power of the [[SwordOfPlotAdvancement Sparda sword]]. Three guesses on what happens to his voice.
115** [[VideoGame/DevilMayCry1 Nelo Angelo]] (aka [[spoiler:a BrainwashedAndCrazy [[EvilTwin Vergil]]]]) has an unnaturally low voice. According to [[WordOfGod The History of DMC]], [[spoiler:[[BigBad Mundus]] destroyed Vergil's original body and placed his soul into an artificial, yet powerful construct.]] Compare this to [[spoiler:Vergil in ''3'']], where his original form had a slightly raspy, but still normal-sounding voice.
116** Whenever Nero uses his Devil Trigger in ''VideoGame/DevilMayCry4'', his voice gains a deep, booming echo.
117** Played with in ''VideoGame/DevilMayCry5''. [[spoiler:BigBad Urizen turns out to be [[LiteralSplitPersonality Vergil's demon half]], now unshackled by his humanity (which has [[EnemyWithout manifested]] as V). He sports a deep voice expected of a self-proclaimed demon king (which is a heavily distorted version of Vergil's in English in an attempt to hide TheReveal), but it appears to be an effect of Vergil's demon side undergoing a sudden and rapid mutation into his current (and [[EvilIsBigger noticeably titanic]]) form, not his amassing of power behind the scenes.]]
118* Invoked in ''[[VideoGame/Jak3Wastelander Jak 3]]'', where the Precursors, revealed to be [[spoiler:fuzzy little Ottsels]] with not-so-impressive voices, use a voice-manipulating device to get that "uber powerful ancient" boom. They know they wouldn't be taken seriously without it.
119* In ''VideoGame/GuildWars: Nightfall'', [[spoiler:Kormir's]] voice becomes layered over a less high voice when [[spoiler:she replaces Abaddon as the God of Secrets]].
120* When [[Franchise/TheLegendOfZelda Link]] wears the [[EleventhHourSuperpower Fierce Deity Mask]] in ''VideoGame/TheLegendOfZeldaMajorasMask'', he physically becomes older, and therefore his voice becomes deeper.
121* In ''VideoGame/ViewtifulJoe 2'', when [[spoiler:Blade Master Alastor]] is defeated, [[ArtifactOfDoom the Black Film]] controls/empowers him, warping him into the even more demonic [[spoiler:Underworld Emperor Alastor]]. When the transformation is complete, his voice quickly deepens. [[TrickBoss Cue Round 2]], where he has a slew of new tricks, more power and defense, and a much larger healthbar.
122* In ''VideoGame/CastlevaniaRondoOfBlood'', Dracula's voice deepens mid-''word'' as he transforms into a massive bat-creature for the second part of the battle. Conversely, when that form is defeated, he roars in pain, and his voice spontaneously ''rises'' back to normal as his transformation is forced to revert.
123** Dracula's more recent cases of OneWingedAngel forms exhibit this as well, either during or after his transformation. Other examples include ''[[VideoGame/CastlevaniaSymphonyOfTheNight Symphony of the Night]]'', ''[[VideoGame/CastlevaniaPortraitOfRuin Portrait of Ruin]]'', ''[[VideoGame/CastlevaniaTheDraculaXChronicles The Dracula X Chronicles]]'' (a [[VideoGameRemake remake]] of ''Rondo''), and ''[[VideoGame/CastlevaniaHarmonyOfDespair Harmony of Despair]]''.
124* ''VideoGame/{{Dota 2}}'':
125** Undying, [[OurZombiesAreDifferent a zombie]] whose ultimate is an ability which transforms him into a much beefier version of his regular self. [[https://www.youtube.com/watch?v=g0OX247BKdg That includes his voice.]] (This soundset can be heard from 1:14.)
126** Earthshaker's voice is automatically ridiculously deep, and you better believe [[EarthquakeMachine that he lives]] [[GroundShatteringLanding up to]] [[MeaningfulName his name.]]
127** One of Terrorblade's abilities also transforms him into a demon, which obviously simultaneously makes him both more powerful and makes his voice even deeper, too.
128* ''VideoGame/GranblueFantasy'': Vajra's voice becomes low and [[CreepyMonotone monotonous]] when she's channeling a spirit. After completing her Fate Episode, you can toggle between her normal voice and her 'possessed' voice in the individual character settings.
129* ''VideoGame/WorldOfWarcraft: Wrath of the Lich King'' reveals that the [[PhysicalGod Lich King's]] booming, [[EvilSoundsDeep deep voice]] is a case of this. During the final cinematic of the expansion's end raid, Icecrown Citadel, we learn that the echo is apparently coming from the Lich King's [[CoolHelmet Helm of Domination]] as in the [[https://www.youtube.com/watch?v=qAIrj_Vqdfc "Fall of the Lich King"]] cutscene that plays after his defeat, the helmet falls off of Arthas' head and his voice is back to his normal tone from before him putting the helmet on. Afterwards, when Tirion Fordring [[spoiler:puts the helmet on Bolvar Fordragon, players actually get to hear Bolvar's voice go from his current voice, to a downright ''demonic''-sounding growling rumble, with the echo kicking in towards the end of the sentence he says after having the helmet put on him.]]
130* ''Franchise/{{Neptunia}}'':
131** The [=CPUs=] and CPU Candidates' voices generally become deeper after transforming into their goddess forms. Some of them are more or less {{Older Alter Ego}}s to their human forms, but rather than just gaining a more mature voice, the pitch of their voices get drastically lower. While in [[Creator/AoiYuuki Yellow]] [[Creator/SandyFox Heart's]] case, her voice really just only becomes more mature, for characters like [[Creator/RieTanaka Purple]] [[Creator/MelissaFahn Heart]] and [[Creator/KanaHanazawa Iris]] [[Creator/CheramiLeigh Heart]] it is more than that. Particularly seen in Neptune/Purple Heart's case; the older version of Neptune doesn't reach Purple Heart's low voice even at the slightest.
132** This trope only appears subtly to [[Creator/YuiHorie Purple]] [[Creator/ChristineMarieCabanos Sister]] and [[Creator/YuiOgura White Sister]] [[Creator/CarrieKeranen Rom]]. Their goddess forms have still very high voices and the change is not nearly noticeable like the other two CPU Candidates, but you can hear more confidence and a ''very slightly'' lower pitch in their voices. In White Sister Rom's case, her voice also becomes a bit [[AnIcePerson frostier]]. Starting from ''VideoGame/MegadimensionNeptuniaVII'', White Sister Rom's voice would become deeper thanks to VocalEvolution.
133** [[VoicedDifferentlyInTheDub Only in the Japanese version]], [[Creator/EriKitamura Black Sister]] has a deeper voice than Uni, a rarity since the other Candidates would remain the same in terms of pitch.
134** Inverted with [[Creator/AsamiImai Black]] [[Creator/ErinFitzgerald Heart]] in the first two games, and averted in the third, as her voice remains the same (especially in the English dub) then played straight since ''VideoGame/HyperdimensionNeptuniaReBirth1''.
135** Inverted with [[Creator/MarikoHonda Orange]] [[Creator/EricaLindbeck Heart]], whose voice becomes much higher and girlier, as her voice is already deep and tomboyish in her human form. The Planeptune [=CPUs=] (not counting the CPU Candidate Purple Sister) generally have a huge character change after transforming. While Purple Heart becomes more serious, stoic and tough, and Iris Heart becomes more dangerous and (sexually) aggressive, Orange Heart becomes softer, more cheerful and girlier.
136** The original CPU quartet can transform into their Next Forms in ''Victory II'', making their voices even deeper than they already are.
137* A lot of the more supernatural champions in ''VideoGame/LeagueOfLegends'' (such as Maokai and Nasus) have very deep voices, but the unquestioned winner is Nautilus, the Titan of the Depths. [[WasOnceAMan Once an ordinary deep sea diver]], he met ''something'' down there that fused him into his diver suit, growing him to gigantic size, infusing him with incredible power, and making [[https://leagueoflegends.fandom.com/wiki/Nautilus/Quotes his voice sound like]] [[https://vignette.wikia.nocookie.net/leagueoflegends/images/0/02/Nautilus_Select.ogg THIS.]]
138* In ''VideoGame/TriangleStrategy'', Idore's voice is already fairly deep, but it deepens further after [[spoiler:he taps into a store of Aelfric and turns into Demigod Idore in the GoldenRoute's final chapter]].
139* [[BigBad Lord Geld]] from ''VideoGame/ViolentStorm'' normally has a rather high-pitched voice. Once the heroes confront him and he decides to [[HulkingOut go all out]], his increase in muscle mass also causes his voice to become noticeably lower.
140* In ''[[VideoGame/WarioWare WarioWare: Gold]]'', Wario's voice upon becoming Wario Deluxe becomes quite a bit deeper when he wears the golden crown. Wario also becomes a lot more condescending and cocky towards the player whenever they mess up a microgame. Wario reverts to his old self when the crown gets knocked off his head.
141* In ''VideoGame/{{Deltarune}}'', Spamton's already deep VoiceGrunting becomes even deeper when he reaches his NEO form. Once he's defeated, he reverses to his normal voice [[DefeatMeansFriendship before becoming a weapon for the heroes]].
142[[/folder]]
143
144[[folder:Webcomics]]
145* [[LampshadeHanging Lampshaded]] in ''Webcomic/TheOrderOfTheStick'' prequel ''Start of Darkness''. When Xykon becomes a lich, he expresses admiration for his new voice and repeats several Creator/JamesEarlJones-isms.
146[[/folder]]
147
148[[folder:Web Original]]
149* {{Inverted|Trope}} in the ''Eskimo Bob'' episode "The Swarm". When Yuck absorbs all his clones and takes on his OneWingedAngel form, his voice actually becomes ''more'' high-pitched.
150[[/folder]]
151
152[[folder:Western Animation]]
153* Mike Morningstar from his debut in ''WesternAnimation/Ben10AlienForce'', where he uses the full extent of his powers after [[TheMole revealing himself to be]] [[EvilAllAlong the villain of that episode]] and siphoning off of Gwen's mana. His skin [[GoldenSuperMode turns gold]], while his voice noticeably deepens and [[PowerEchoes gains an echo effect]]. When {{depower}}ed, Mike's voice returns to normal. As Darkstar, it's back to said deepness but this is a subversion, as it's an effect of his CoolMask.
154* ''WesternAnimation/HeManAndTheMastersOfTheUniverse1983''/''WesternAnimation/SheRaPrincessOfPower'': Both He-Man and She-Ra's voices get significantly deeper when they do [[ByThePowerOfGreyskull their]] {{Transformation Sequence}}s. Overlaps with OlderAlterEgo.
155* The ''WesternAnimation/SupermanTheatricalCartoons'' do the same thing as the radio serials (using the same actor, no less).
156* In ''WesternAnimation/ThunderCats2011'', Lion-O's voice gets deeper whenever he uses the [[InfinityPlusOneSword Sword of Omens]] and [[ByThePowerOfGrayskull shouts "ThunderCats, ho!"]]
157* In Creator/RalphBakshi's animated ''[[WesternAnimation/SpiderMan1967 Spider-Man]]'' series from the 1960s, Peter Parker deepens his voice while donning the Spidey suit.
158* In ''WesternAnimation/SpiderManTheAnimatedSeries'', [[AmazonianBeauty Black Cat's]] voice gets deeper when she [[GrowingMusclesSequence transforms]] or uses her powers.
159* In ''WesternAnimation/IronManArmoredAdventures'', Pepper incorrectly answers the test in the trial for uncovering the fifth Makulan ring. This results in her being taken over by [[MagmaMan a volcanic entity]] (which was previously controlling Rhodey), gaining [[PlayingWithFire fire powers]] and a booming voice, and going into a berserk fury while shouting lines like "You are not worthy!" as the energies within her body [[TheEndOfTheWorldAsWeKnowIt threaten to cause worldwide volcanic eruptions]] [[ApocalypseHow that will eventually blot out the sun]].
160* ''WesternAnimation/AvatarTheLastAirbender'' and ''WesternAnimation/TheLegendOfKorra'': When Avatars such as Aang and Korra go into the Avatar State, this is the general effect -- though it's because the spirits of hundreds of past lives are speaking through them, [[VoiceOfTheLegion all at once]].
161* In ''WesternAnimation/StarVsTheForcesOfEvil'', Star Butterfly's GoldenSuperMode initially gives her an unnaturally deep voice. When she learns to activate it at will, however, she retains her normal voice.
162* In both ''WesternAnimation/TheIncredibleHulk1996'' and ''WesternAnimation/FantasticFourWorldsGreatestHeroes'', Jennifer Walters' voice deepens when she transforms into ComicBook/SheHulk.
163* ''WesternAnimation/{{Ninjago}}'': When the Quiet One uses the Oni Mask of Hatred, it grants invulnerability and makes their voice lower.
164* In the ''WesternAnimation/PhineasAndFerb'' episode, "This is Your Backstory", Doofenshmirtz is turned into a monster after all of his backstories getting viewed, resulting in his voice getting deeper.
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167[[folder:Real Life]]
168* There is some TruthInTelevision to this, funnily enough. People (both men and women) will subconsciously deepen their voices if they feel confident or superior to the person they're talking to. (And the other way around -- if you feel inferior, your voice gets higher.) Has to do with establishing dominance. Hence, not only will a person with a very deep, gravely voice subconsciously be seen as a powerful individual, BEING powerful will also cause you to lower your voice without realizing it. However, the real life effect is not nearly as strong as what you'll see in movies. Also, people drop their voices for other reasons too: such as when they are trying to hide anger or sadness, or sound sexy.
169* Logically, a larger person or animal will naturally have the deeper voice, simply by having larger proportionate vocal cords. You don't see many tall men or women with high-pitched voices, even when they're not trying to sound powerful or threatening.
170* Male frogs and toads developed their extensible chin pouches so that their mating calls would sound deeper and more resonant. This suggests larger body size to females, which [[BiggerIsBetter seek out the biggest males]] to father their offspring (because only males with a good set of genes live long enough to ''grow'' big).
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