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Why Computer Voices Are Mostly Female

PolygamousRanchKid writes with an article exploring the question posed in the headline, which says that "One answer may lie in biology. Scientific studies have shown that people generally find women's voices more pleasing than men's. 'It's much easier to find a female voice that everyone likes than a male voice that everyone likes,' said Stanford University Professor Clifford Nass, author of 'The Man Who Lied to His Laptop: What Machines Teach Us About Human Relationships. 'It's a well-established phenomenon that the human brain is developed to like female voices.' One notable exception has been Germany, where BMW was forced to recall a female-voiced navigation system on its 5 Series cars in the late 1990s after being flooded with calls from German men saying they refused to take directions from a woman. An Apple spokeswoman declined to comment on why the company gave Siri a female voice in the U.S. Nor would she say why Siri speaks like a man in the UK, where iPhone 4S owners have swarmed online forums to request a female voice instead."

53 of 276 comments (clear)

  1. NYC Subway by sharph · · Score: 5, Interesting

    One day I had the interesting observation on the New York Subway that the recorded voices with informational statements were female, and the statements asking the passenger to do something ("Please stand clear of the door") were all male.

    1. Re:NYC Subway by RCL · · Score: 5, Interesting

      In Moscow subway, if your train is getting closer to city center, you hear male voice ("boss hurries you to work"), and if you are travelling in opposite direction, there's a female announcer ("wife calls you home") - they switch half-way for most trains. Male-oriented hint, but still.

    2. Re:NYC Subway by Tapewolf · · Score: 3, Interesting

      In Wales, the English rail announcements are female and the Welsh versions are male.

    3. Re:NYC Subway by _xeno_ · · Score: 2

      In Boston, they just use one male voice for everything. Although I guess it makes sense, due to things like the following being common:

      (leaving Porter Square): Next stop, Harvard Square.
      (arriving at Harvard Square): Now arriving at Harvard Square.
      (leaving Harvard Square): Next stop, Harvard Square.
      (arriving at Central Square): Now arriving at Harvard Square.
      (leaving Central Square): Next stop, Harvard Square.
      (And so on)

      I've also heard it do the stations backwards, giving the next stop as the stop in the other direction.

      I guess if the system is going to constantly be broken, using a male voice makes sense. I guess people expect female voices to know what they're talking about, but are used to running into men that continue to give bad information even after it's clear that what they're saying can't possibly be correct. :)

      --
      You are in a maze of twisty little relative jumps, all alike.
    4. Re:NYC Subway by digitig · · Score: 4, Funny

      He was probably the only person they could find who spoke Welsh.

      --
      Quidnam Latine loqui modo coepi?
    5. Re:NYC Subway by sconeu · · Score: 2

      Must be hard to know when to get off when they announce all stops as Harvard Square.

      Or maybe that's why Charlie never returned.

      --
      General Relativity: Space-time tells matter where to go; Matter tells space-time what shape to be.
    6. Re:NYC Subway by rvw · · Score: 2

      One day I had the interesting observation on the New York Subway that the recorded voices with informational statements were female, and the statements asking the passenger to do something ("Please stand clear of the door") were all male.

      In Barcelona they did this 20 years ago already. A female voice said: "Proxima estacion", and a male one said: "Catalunya". I found it very entertaining then.

    7. Re:NYC Subway by Idarubicin · · Score: 2

      In Barcelona they did this 20 years ago already. A female voice said: "Proxima estacion", and a male one said: "Catalunya". I found it very entertaining then.

      This is actually an excellent feature--I noticed it when I was in Barcelona a few years ago, and I would be thrilled to see more cities adopt it. Making the name of the station audibly distinct is an excellent cue for listeners in the often-loud subway with its muffled, broken, or distorted public address systems. As an added bonus, subway riders who don't speak Catalan or Spanish get the important information - the station name - clearly set off from the surrounding announcement.

      --
      ~Idarubicin
    8. Re:NYC Subway by grcumb · · Score: 4, Funny

      He was probably the only person they could find who spoke Welsh.

      Actually, it's Dylan Thomas. If anyone actually spoke Welsh, they'd realise that he's saying, 'I sing to you now of the pretty milk town down the dingle where a milk maid coos to her swain. By the time we arrive her heart will have lofted like a swan, leaving the lost little lad consumed and forgotten as the lilac by the goat. Mind the gap.'

      --
      Crumb's Corollary: Never bring a knife to a bun fight.
  2. It's the Majel Barrett effect by multisync · · Score: 5, Insightful

    Female computer voice: Star Trek
    Male computer voice = HAL 9000

    Nothing good ever came from a male computer.

    --
    I don't care why you're posting AC
    1. Re:It's the Majel Barrett effect by Nidi62 · · Score: 2

      A computer with a female voice did also order death by snoo snoo. I can't think of a more pleasant way to die.

      --
      The only thing necessary for evil to triumph is for it to be pitted against a slightly greater evil
    2. Re:It's the Majel Barrett effect by dkleinsc · · Score: 2

      On the one hand, the female computer voice could at any moment turn into Lwaxana Troi.

      On the other hand, it turns out Babylon 5's computer seems to have the same problem.

      --
      I am officially gone from /. Long live http://www.soylentnews.com/
    3. Re:It's the Majel Barrett effect by wootest · · Score: 2

      GLaDOS.

    4. Re:It's the Majel Barrett effect by Anonymous Coward · · Score: 3, Funny

      That was a fembot, not a femputer!

    5. Re:It's the Majel Barrett effect by spire3661 · · Score: 2

      I prefer her as Number One.

      --
      Good-bye
    6. Re:It's the Majel Barrett effect by GIL_Dude · · Score: 3, Informative

      No, he is talking about Majel Barret playing Number One in "The Cage" - the original Start Trek pilot with Captain Pike; the one that was later made into "The Menagerie" where Spock was court martial-ed for returning Pike to Talos IV after his severe radiation burns rendered him wheel chair bound. http://www.imdb.com/title/tt0059753/

  3. Re:Opposite Sex by Nidi62 · · Score: 3, Funny

    Surely most people prefer to listen to the opposite sex, provided they do not suffer from sexual identity disorder or a similar crippling condition ...

    I assume then that being British counts as a similar crippling condition?

    --
    The only thing necessary for evil to triumph is for it to be pitted against a slightly greater evil
  4. Siri by CharlyFoxtrot · · Score: 4, Interesting

    So US Siri is a secretary and UK Siri is a gentleman's gentleman ?

    --
    If all else fails, immortality can always be assured by spectacular error.
  5. Re:Opposite Sex by Chris+Mattern · · Score: 4, Informative

    Surely most people prefer to listen to the opposite sex,

    Actually, no. Research has shown better response to female voices by both men and women.

  6. Female voices are easier to understand (?) by sigxcpu · · Score: 3, Interesting

    In the army there is a known fact/myth that female voices are easier to understand on noisy radio links.
    Something to do white the a different/better frequency spread than a male voice.
    In my not very scientific experience, it seems to be true.

    --
    As of Postgres v6.2, time travel is no longer supported.
    1. Re:Female voices are easier to understand (?) by realityimpaired · · Score: 3

      Obligatory comment: I was in signals in the army for 4 years.

      Female voices *are* easier to understand than male voices over the radio. And some males sound female on the radio.

      *BUT*, female voices and male voices aren't significantly different from each other in pitch. Women are sometimes higher pitched, but on the whole, they're about the same pitch as male voices. The difference between the two is resonance... males tend to have larger lung capacity, and with that more space to resonate the lower frequencies in their voice, which is why their voice sounds lower pitched. This is why female voices sound higher pitched than males, and it's why some male-to-female transgenders are able to sound completely female by learning how to resonate their voice (hint: the ones who don't sound naturally female are the ones who adjust the pitch of their voice).

      It's that lack of resonance that I think explains why females are easier to understand on the radio, and also why some males sound female on the radio. The radio isn't a very good medium for transferring something like resonance, because it's a single point of sound at the output, and usually not a particularly high end speaker at that... as a result, female voices sound more natural over the radio, and males sound distorted. It's not that they're *actually* distorted, just that they don't sound quite like we expect them to sound, and it causes a cognitive dissonance.

  7. Re:Opposite Sex by Kjella · · Score: 4, Interesting

    Surely most people prefer to listen to the opposite sex, provided they do not suffer from sexual identity disorder or a similar crippling condition ...

    I'm guessing it's the same phenomenon as with magazines. The manly magazines are full of highly attractive women. The womanly magazines are also full of highly attractive women. Men like talking to a woman. Women like talking to another woman. It probably goes all the way back to our cavemen days where women were chatting at camp or out gathering, while the men were more rivals and out hunting pray, which obviously leads to less talking. So most everyone feels better talking to a woman, except when taking directions on where to drive. Which some say can also be traced back to our cavemen days...

    --
    Live today, because you never know what tomorrow brings
  8. Garmin already does this by Scareduck · · Score: 2

    Garmin allows you to pick from a number of different voices, with different regional accents and languages as well.

    --

    Dog is my co-pilot.

    1. Re:Garmin already does this by pecosdave · · Score: 2

      You forgot about Tom-Tom fool!

      --
      The preceding post was not a Slashvertisement.
  9. I always thought the reasons were technical by Solandri · · Score: 5, Interesting
    • Female voices span a greater range of the audio frequency spectrum than male voices. So a loud, narrowband background noise (e.g. engine/road/wind noise when driving on the freeway) has a greater chance of making it difficult to hear a male voice, while a female voice cuts right through.
    • Higher frequency sounds carry more energy for the same amplitude (volume) than low frequency sounds, and drop off more quickly with distance (gets absorbed more readily by the air - why foghorns are low-pitched). So the environment normally has less high frequency background noise.
    • Lower frequencies require bigger speakers, so it's easier to crank up the volume of a female voice using a smaller speaker.
    1. Re:I always thought the reasons were technical by fuzzyfuzzyfungus · · Score: 3, Funny

      Your nerd "technical reasons" leave us no room for endless inflammatory arguments and trite gender sterotyping! How will we fill the empty silence now?

    2. Re:I always thought the reasons were technical by TeknoHog · · Score: 2

      Female voices span a greater range of the audio frequency spectrum than male voices.

      Citation, please? I think the opposite would be true. First of all, consonants have generally high frequencies and wide spectra, so the low male vowels will make the whole spectrum wider. Secondly, harmonic frequencies are integer multiples of the fundamental frequency, so a male voice has more of these harmonics within the audible range. This is why deep male voices are good test material for audio systems. For example, lossy compression schemes will remove some of the harmonics, so female voices would be easier to preserve.

      Lower frequencies require bigger speakers, so it's easier to crank up the volume of a female voice using a smaller speaker.

      True. This is one more reason why male voices are harder to reproduce well, so in the end we choose the one which sounds better after all the noise. The assumption of the narrower spectrum of female voice also means that energy is more concentrated, so it stands out better above the noise floor.

      --
      Escher was the first MC and Giger invented the HR department.
  10. Re:Hmmm, nope. by nathan+s · · Score: 4, Informative

    From TFA:

    '"It's much easier to find a female voice that everyone likes than a male voice that everyone likes..."'

    It's not that there are no people who find male voices pleasant or prefer them in some circumstances. Just that _generally_ people prefer female voices. I certainly do.

  11. Concealed Apple commercial? by g00ey · · Score: 2

    From my experience the gender of the synthetic voices has been male by default so I don't recognize this. The default voice on the old Amiga narrator.device was male. The default voice on loud-reading software used to be NeoSpeech Paul which has been one of the best English spoken computer narrator compilations out there.
    The GPS software I have used have both male and female voices in different languages to choose from, I have primarily used TomTom and Navigon. I cannot recall that I preferred one gender over the other.
    Telephone voices on the other hand have from my experience been dominated by females, and we're talking about automated phone services and phone queue notifications. But seriously, I wouldn't care whether the voice is male or female.

    There may or may not be some bearing in the statements regarding the gender of the computer voice although I seriously doubt it. But when I read the following:

    "What's interesting to me is how they seem to intentionally make her speech sound artificial -- they could choose to make her speech more seamless and human-like, but they choose instead to highlight the technology,"

    I seriously started to believe that this article is paid for by Apple. Making a really good and natural voice is a very difficult undertaking and I have not yet heard a perfect and seamless computer voice that sounds as natural as a real human.

  12. Re:Why no choice? by fuzzyfuzzyfungus · · Score: 2

    Giving the user a choice would imply that they know better than Apple does about what is best.

    Apple's entire business model is founded on the operational assumption that they know better than the customer. Their present success is founded on the fact that they are quite often correct about this....

  13. Listen to the republican debate by 7-Vodka · · Score: 2, Interesting

    Whoever wrote this story hasn't been listening to the republican debate. I want to poke out my eardrums whenever michelle bachman speaks, sorry, screams.

    --

    Liberty.

    1. Re:Listen to the republican debate by amiga3D · · Score: 2

      I'd rather listen to her than Romney, or Perry.

  14. Re:Urban myth by tibman · · Score: 2

    um, i just googled "bmw recall female voice" and got this: http://www.pbs.org/speak/ahead/technology/voiceinterface/

    It doesn't appear to be mythical.

    --
    http://soylentnews.org/~tibman
  15. Re:Hmmm, nope. by Just+Brew+It! · · Score: 5, Funny

    How about we just use James Earl Jones for everything? I think I'd be fine with that...

  16. Not a myth by Kupfernigk · · Score: 4, Informative

    In WW2 ground controllers for the British Air Force were almost all women. I was told (by someone who had good reason to know) that there was a debate about whether to have women radio operators in the aircraft. There were two reasons: One was more reliable communication, the other was to prevent the Germans spoofing aircraft radio operators. A number of women operators were asked for their views and immediately volunteered to fly (a very dangerous occupation). Despite this, the proposal was turned down. The attitudes at the time were truly backward; there were women pilots who were allowed to deliver aircraft to their bases, but they were not allowed to fly with guns loaded - a quite incomprehensible decision since some of them were shot down by enemy action without a chance of fighting back.

    --
    From scarped cliff or quarried stone she cries "A thousand types are gone, I care for nothing, no not one."
    1. Re:Not a myth by dave420 · · Score: 2, Interesting

      The Germans also used women ground controllers. A funny story: when the RAF used to interfere with broadcasts on Luftwaffe channels (using "tame" native German speakers) their operations usually ended in German-speaking lady operators arguing with each other, all trying to convince the confused airmen they were a real Luftwaffe controller.

  17. For IVRs it's usually for Intimidation by kervin · · Score: 2

    Least for IVRs, on average people find male voices more intimidating than female voices. We also find female voices more nurturing than male voices on average.

    Other posters have already point this out. Suggestions ( facilitated by nurturing speaker ) then women are used. Commands ( facilitated by intimidation, i.e. subtle threat of punishment ) then males are more often used.

    Systems where you may need to intimidate the listener a bit will tend to use male voices. I kid you not, but in the future pay attention to how many collections operators or conflict desks sound 'black'. Also think of how often you spoke to a collections/conflict department and got a deep voiced male. Now compare that to how often you called the general operator and got a deep voiced male.

  18. Re:Urban myth by bhaak1 · · Score: 2

    You just linked to an article that cites the same guy that is also cited by TFA.

  19. Re:Hmmm, nope. by hedwards · · Score: 2

    Because Geoge Takei also has a really wonderful voice, not to mention that Leonard Nimoy isn't too bad either.

  20. Re:Hmmm, nope. by Anonymous Coward · · Score: 3, Funny

    Following directions of the Sith may not be acceptable to those of the religious Jedi order.

  21. Re:Hmmm, nope. by Culture20 · · Score: 4, Funny

    Meaning that the words were taken from samples so they wouldn't quite match up even if the grammar was correct.

    The trick there. Is to hire Shatner for. The voice. acting. ThenNoOneWillKnowTheDifference.

  22. Why computer Voices are Mostly Female by Linuxmonger · · Score: 2

    Because computer programmers are mostly male.

  23. Re:Hmmm, nope. by EdZ · · Score: 3, Insightful

    Add to that list Morgan Freeman and Stephen Fry.

    And for emergency alerts, Brian Blessed.

  24. Re:What about audiobooks? by zippthorne · · Score: 2

    I've listened to a couple of librevoice recordings from gutenberg, and I think that the real reason is that women, generally, like to read books more than men, so they get the idea that they would like volunteer to read for an audio book as well.

    But, they're volunteers, not professional voice actors, so everything comes out as some kind of sing-songy poem read for kids. It's not that women are worse at voice acting than men, it's just that in the amateur reading department there are more of them. The male volunteers have been just as bad. To the point that I prefer my computer's voice to the volunteer readers.

    Of the professional recordings I've heard, there haven't been any done by women, so I guess that would be potential flaw in my logic. They've all been superior to machine-readings though. I suspect if I listen to enough, the professional women will do just as well. Now, I just need to figure out how to get the Overdrive app to not get pre-empted by iTunes when I plug my iPod into my car's iPod link....

    --
    Can you be Even More Awesome?!
  25. Re:Hmmm, nope. by JoeMerchant · · Score: 2

    Although I like Leonard Nimoy much better, I - have - noticed - a - similar - style - in - his - delivery.

  26. Re:Hmmm, nope. by Dr_Barnowl · · Score: 2

    DYIIIIIVE!!!!!

  27. You're doing it wrong. by Anonymous Coward · · Score: 3, Interesting

    "Bro's before ho's"

    That doesn't mean 'only hang out with dudes', it means 'don't screw over your friends to get laid'.

  28. Re:Hmmm, nope. by Vecanti · · Score: 2

    Who is JEJ? I Googled it and got a zillion hits, but nothing obvious.

    JEJ? The voice of "Darth Vader".

    Oh yes. Very soothing!

    But hey, maybe that works for a library.

    Patron:"I swear! I'll pay my late fees by the end of the week!"
    Automated Voice:"I hope so for your sake, the Head Librarian is not as forgiving as I am."

    Reminds me of Conan the Librarian. :)

  29. Re:Read better by WaywardGeek · · Score: 5, Interesting

    Academic studies always show that we prefer female voices, but in reality, those who count on computer generated voices all day prefer male voices. Note all the readers mentioning James Earl Jones. The reason studies like this get it wrong is simple. They get random groups of people who never use computer voices to take part in their experiments, and such people initially prefer female voices. If the experiments were to run long enough for participants to become expert listeners, they would find they trend towards male voices. I do a lot of looking at speech signals, and my unsupported theory as to why we switch to male voices is that male voices cover a broader portion of the sweet spot in our hearing, where we perceive sound most sensitively. This makes male voices easier to listen to if you have to listen for long periods of time. They are also easier to understand in noisy environments, thus thus the classic low male ham radio voice.

    To understand what people like when they have to listen a lot to computer generated voices, just ask the blind. I was the tech lead for Vinux 3.0, which is Linux for the Vision Impaired. That doesn't make me an expert, but here are my observations. The most popular voices for blind programmers are male, probably eloquence first (it can play very fast), followed by espeak (because it's free and everywhere), followed by various low-speed commercial male voices. The most popular Mac voice for the blind is Adam, a mechanical guy with a decent voice that can play at decent speed. The female voices are often discussed, usually with adjectives like sexy, emotional, sultry, and so on, but in the end the blind go back to their male TTS engines to get work done.

    I did a lot of testing to try and speed up voices to the speeds the blind like to listen. The result is the sonic library, which powers speech speed-up in various programs like the Astro Nova player at up to 6X playback speed. At least one blind lister can listen with high comprehension to a male voice (eloquence) at about 1,500 words per minute, or 7X the default speed of this high speed voice. At this speed, the original vowels are typically compressed to one or two pitch periods. It's incredible that a blind listener can still perceive these as whole phonemes. To achieve higher speed, I've told him he needs to consider listening to a female voice, where I could get perhaps twice as many pitch periods into the same 10-ish milliseconds where he currently perceives one phoneme. The problem is that at higher fundamental pitch, this voice will register on a smaller portion of his hearing bandwidth, making it harder to get as much information out of it high speed. We've not yet had any luck with high speed female voices.

    As a person losing central vision, I experienced all this myself. When I first started using computer generated voices, I tried to find a female voice I could live with. I tried a couple of smooth female Cepstral voices, but before long they sounded grating and frustratingly slow. My blind friend told me to avoid the "natural" voices and go with something that I could listen to at high speed, but I just couldn't stand the mechanical voice he was pushing - eloquence. Well, he was right. I eventually migrated to eloquence just like him and many blind people. James Earl Jones has the perfect voice for computers. It's low enough to take advantage of every bit of bandwidth we easily perceive. It's broad spectrum, taking advantage of the high frequencies as well, and very consistent, making his voice addictive. Your ear likes consistency.

    --
    Celebrate failure, and then learn from it - Nolan Bushnell
  30. How about this... by Kaenneth · · Score: 4, Funny

    I would pay good money (as opposed to Bitcoins) to listen to James Earl Jones and Morgan Freeman have a conversation about types of cheese.

  31. Re:Read better by evilviper · · Score: 2

    Your question is answered, and your theory doesn't quite fit:

    http://www.abc.net.au/science/news/health/HealthRepublish_1428081.htm

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    Slashdot gets worse every day... Pipedot: News for nerds, without the corporate slant
  32. Re:Read better by Anonymous Coward · · Score: 5, Funny

    For my computer generated voices, I prefer a raspy, sensual voice, with a hint of lasciviousness. Compliant, or even coy at times, yet surprisingly assertive when you least expect it.

  33. Re:Read better by deesine · · Score: 2

    So you're like the others here, and prefer James Earl Jones...

    --
    damaged by dogma