[Noisebridge-discuss] speechjammer - we need one for meetings
Daniel Pitts
coloraura.com at gmail.com
Mon Mar 5 17:47:12 UTC 2012
Wow, $13 app. I sometimes find my speech is "almost stutter", but it's
never been enough to cause real problems in my life, though I do find it
affects my self-esteem. Never been diagnosed with anything, but if there
is an app to help, I'd like to check it out.
I did an app store search for DAF, and found a few apps. There was a
free one, DAF Professional. Any experience with that one? Is this an
instance of YGWYPF, or is it possible I'll get real benefit from the
free version?
On 3/3/12 4:12 AM, Duncan wrote:
> There's an iPhone app for that: DAF Assistant, made by Artefact,
> LLC. The program also includes Frequency-shifting Auditory Feedback
> (FAF), which when used with DAF, creates the so-called "chorus effect"
> which further boosts the beneficial properties of DAF for stuttering,
> slowing down speech, increasing speech fluency (i.e. reducing
> mumbling), implementing regional accent reduction, increasing
> confidence levels, and developing good speaking habits. I've used it
> and it does work incredibly well for achieving those things.
>
> I've never experienced the speech jammer effect alluded to in the
> article, but then I'm from the South where we learn young not to talk
> when you don't know what the hell you're talking about. Without such
> clarity of thought though, it might well.
>
> Interesting... Thanks!
>
> On Fri, Mar 2, 2012 at 11:59 AM, Jake <jake at spaz.org
> <mailto:jake at spaz.org>> wrote:
>
> we can just build one, it's pretty simple technology.
>
> http://www.medicalnewstoday.com/articles/242444.php
>
> "SpeechJammer" Invention Stops A Person Talking Mid-Sentence
>
> Featured Article
> Main Category: Medical Devices / Diagnostics
> Also Included In: Psychology / Psychiatry; Hearing / Deafness
> Article Date: 02 Mar 2012 - 11:00 PST
>
> Healthcare Prof:
>
> Two researchers in Japan have invented a "SpeechJammer" device
> that can
> stop a person talking in mid-sentence, by just projecting back to them
> "their own utterances at a delay of a few hundred milliseconds". The
> device does not stop them talking permanently, it is just that
> they become
> so confused, they can't finish their sentence and begin to stutter
> or just
> shut up.
>
> The two researchers are Kazutaka Kurihara, a media interaction
> research
> scientist at the National Institute of Advanced Industrial Science and
> Technology, and Koji Tsukada, an assistant professor at Ochanomizu
> University, and a researcher at JST PRESTO, a program that aims to
> "cultivate the seeds of precursory science and technology".
>
> They describe their prototype SpeechJammer, and the results of some
> experiments, in a paper published on 28 February on arVix, an e-print
> service owned, operated and quality controlled by Cornell University.
>
> The researchers say the device causes no physical discomfort to the
> interrupted speaker, and the effect stops as soon as they stop
> speaking.
>
> The prototype SpeechJammer looks like a black cube about the size of a
> shoebox mounted on a shaft which acts as a handle. The box contains a
> direction-sensitive speaker, and on top of it is a direction-sensitive
> microphone.
>
> On Kazutaka Kurihara's personal website there is a short video
> demonstrating the use of the device in two scenarios.
>
> The first scenario shows a small group of people in an office,
> working at
> their computers, when one of them receives a call on her
> cellphone. The
> conversation begins to irritate the others, and then one of them
> decides
> to take action. He points the SpeechJammer at the irritating talker,
> interrupting her mid-sentence in her cellphone conversation,
> whereupon she
> appears confused, and then stops.
>
> In the other scenario, a lecturer is talking and his lecture has
> run over
> time. Many of his students are looking quite bored and fed up and
> one of
> them takes the SpeechJammer, points it at the lecturer, and he
> trips over
> his own words and stutters, interrupting his flow.
>
> The SpeechJammer works on the principle of Delayed Audio Feedback
> or DAF.
> There is a theory that when we speak, we use the sound of our own
> voice
> uttering the words to help us. But, if that "playback" is artificially
> delayed, it interrupts the cognitive processing that helps us
> maintain our
> flow. In fact, there is a theory that something akin to DAF is what
> happens to people who stutter, and it is known that artificially
> induced
> DAF can help reduce stuttering.
>
> In their paper the researchers describe how they experimented with two
> speech contexts: one where the speaker was reading news out loud and
> another that was a "spontaneous monologue".
>
> It appears that speech jamming is more successful, with this
> prototype, in
> the news out loud than in the monologue context, and also, it became
> obvious that it never works when meaningless sound is uttered,
> like when
> someone says "Ahhh" over a long period of time.
>
> With reference to research on communication and decision making,
> Kurihara
> and Tsukada point out that applying rules and constraints on verbal
> contributions can change the properties of the discussion, and
> they also
> mention how "negative features" of speech can be "barriers toward
> peaceful
> communication".
>
> They propose that using the SpeechJammer to place a constraint on
> communication, by simply making "speech difficult for some people", it
> might "bring meaningful changes to communication patterns in
> discussions".
>
> Such a system "points the way to promising future research relating to
> discussion dynamics," they write.
>
> In their paper, the researchers focus very much on the science: the
> physics of the device and how it might be improved to deal with
> various
> parameters, plus the science of communication, and make no mention
> of the
> ethical and legal aspects of developing a machine that makes
> people stop
> talking.
>
> Written by Catharine Paddock PhD
> Copyright: Medical News Today
> Not to be reproduced without permission of Medical News Today
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