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Virtual Dictionary
Voice Activity Detection Voice activity detection or VAD, is typically a sub-process of speech recognition. It can of course be used in other ways as well. It functions as a result of analysis software hooked to a microphone, to detect when a human voice is being used. Not so much what is said, just the tonal parameters to indicate the presence or absence of voice. Below, we offer a selection of links from our resource databases which may match this term.
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Entries for Voice Activity Detection:
Resources
in our database matching the Term Voice Activity Detection:
 When it comes to voice, what is best is of course a voice module that can take a virtual voice as input just as well as a microphone - giving those without voices the same level of interaction as those with. That is what Vivox is working on, for Second Life and World of Warcraft.
Textual communication, as exhibited by chat rooms, MUDs, graphic social VRs, and MMOs, is itself a form of voice, a virtual voice. There are many who cannot speak properly, through the many disabilities which can affect voice: ME which wastes muscles away; cerebral palsy, which limits fine motor control; Parkinsons, which plays with signals from the brain to the body, or simple paralysis.
In roleplaying, nothing breaks immersion more than hearing the voice of the player when its not appropriate for the role. The voice of a 10 year old girl coming from the troll about to smack you into next week, or a butch, and manly seductress just breaks immersion entirely. Either online roleplay should be limited to just text whilst everything else goes voice, or a new approach is required.
 A larger version of the system overview map from the VTT Technical Research Centre of Finland, demonstrating how their latest HGV-based modular real-time ice detection sensor web really functions. Resource Type not Available 
A commentary from Wired magazine on the advent of voice in the gameworld WoW, and how it is destroying the virtual identity ? physical identity threshold. Well balanced for both sides.
 A new neuroprosthetic on the market at the end of 2009, is an attempt to actually combiine a neural activity detector and a neurostimulator into one package. Traditionally this never worked because oncethe neurostimulator activates, it blocks out all underlying brain activity in the area - the implant is only reading itself. But, what if that is the desired outcome?
 The predictably over-paranoid US government has begun to take its spy networks into cyberspace, targeting virtual environments for terrorist-like activity. Project codename Reynard aims to recognise "normal" behaviour in online worlds and home in on "anomalous" activity.
Previously featured Industry News from September 2003, looking at the Vocaloid technology - the creation of virtual singers using voice fonts from previous artists.
In the video below, tunes are played via neuroprosthetics. What you are hearing, sounding eirie and mournful, is quite literally the sound of a healthy human brain working. Different areas were assigned to different notes, and the volume determined by the amount of activity. Areas with very low activity were filtered out entirely.
Industry
News containing the Term Voice Activity Detection:
Results by page (04/06/2008)
A whole host of highly advanced speech technologies, including emotion and lie detection, are moving from the lab to the marketplace. "This is not a new technology," says Daniel Hong, an analyst at Datamonitor who specialis...
(24/11/2003)
Vocaloid, that's the name of a new technology, created to mimic singers voices with fine precision. Developed at the Spanish University Pompeu Fabra and under the care of Yamaha Corporation, the software, available for all by January, a...
(29/01/2010)
Google helped loosened Apple's tight control over the iPhone a little today by launching Google Voice as a Web app for both the iPhone and Palm OS. Google Voice provides a single phone number for multiple phones, provides lo...
(22/08/2009)
Apple Inc. told federal regulators Friday that it blocked the Google Voice program from running on the iPhone because it alters important functions on the device - yet Apple denied that it has rejected Google's application outright. ...
(05/04/2009)
Google has said it sees voice search as a major opportunity for the company in building a presence on the mobile web. The company's vice president of engineering made the comments during a wide-ranging discussion at ...
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