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Voice Recognition Systems

Index

  1. Voice Recognition
  2. Resources
  3. Products
  4. VXML

Description

Voice Recognition is a technology which allows a user to use his/her voice as an input device. Voice recognition may be used to dictate text into the computer or to give commands to the computer (such as opening application programs, pulling down menus, or saving work).

Older voice recognition applications require each word to be separated by a distinct space. This allows the machine to determine where one word begins and the next stops. These kinds of voice recognition applications are still used to navigate the computer's system, and operate applications such as web browsers or spread sheets.

Newer voice recognition applications allow a user to dictate text fluently into the computer. These new applications can recognize speech at up to 160 words per minute. Applications that allow continuous speech are generally designed to recognize text and format it, rather then controlling the computer system itself.

Voice recognition uses a neural net to "learn" to recognize your voice. As you speak, the voice recognition software remembers the way you say each word. This customization allows voice recognition, even though everyone speaks with varying accents and inflection.

In addition to learning how you pronounce words a voice recognition also uses grammatical context and frequency of use to predict the word you wish to input. These powerful statistical tools allow the software to cut down the massive language data base before you even speak the next word.

While the accuracy of voice recognition has improved over the past few years some users still experience problems with accuracy either because of the way they speak or the nature of their voice.

Index

Resources

  1. The NatSpeak InfoPages by Joel Gould contains a wealth of information about Dragon NaturallySpeaking, much of which you will find nowhere else. (Note users using Screen Readers will have difficulty using this site)

  2. A Manual for Implementing Dragon Dictate is a course on SNOW that teaches about the implementation of voice recognition to assist students with learning disabilities.

  3. Computing Out Loud is a site intended to help people using speech recognition software.

  4. The Voice Users mailing list discusses the use of voice recognition. One can also view the list archive.

  5. Speaking to Write is an information resource on voice recognition based at the The Education Development Centre.

  6. Speaking to Write (as referred to above) also runs a list serve on speech recognition.

  7. Typing Injury FAQ Speech Recognition page

Index

Products

This list of products is for reference purposes only and does not reflect endorsement by the ATRC.

Products for Windows

  1. "DragonDictate and Naturally Speaking" from Dragon Systems.
    Note: Dragon's new USB compatible product that will ensure high quality sound.
    Note: DeagonDictate may not be found on their website but is still available.
    Note: On June 7, 2000 Dragon Systems was purchased by Learnout & Hauspie.

  2. Freespeech by Philips

  3. Kolvox Lawtalk 2.0 for Windows from Kolvox

  4. Learout and Hauspie voice recognition technology - Voice Xpress.

  5. Metroplex Voice Computing, Inc (MVC) has developed hands/mouse free programs which utilize Dragon Systems speech recognition engines to dictate math.

  6. "Voice Pilot" for Windows by Voice Pilot, Inc.

  7. "Via Voice" for Windows from IBM

Products for Macintosh

  1. Via Voice by IBM.
    • Is a continuous speech product
    • Uses its own dictation window

  2. Voice Power Pro is a new voice recognition application developed in the UK.
    • Uses discrete speech

  3. Apple's Speech Recognition allows the user to control their operating system.

  4. Dragon Systems Inc. is planning to release continuous speech products for the Macintosh.

  5. MacSpeech is presently working on a voice recognition for Macintosh.

Digital Voice Recording Products

These products allow a user to dictate text which can be translated at a later date by a voice recognition system.

  1. "Dragon NaturallyMobile"

  2. The Olympus D1000 digital recorder
    This product works with IBM's Via Voice.

  3. Norcom Dictation Systems
    This line of products use minicassettes and norcom makes a hardware transcriber.

  4. The Sony MZ-R55
    This product is not associated with any voice recognition product.

  5. Voice It Products
    These products are designed to work with Dragon systems Naturally Speaking.

Index

VXML

VXML is to be the standard with which voice applications are developed on the internet. It will created by combining several mark up languages that already exist which are based on the XML standard.

  1. JSML (Java Speech Markup Language) by SUN Microsystems

  2. SML (Speech Markup Language) by IBM

  3. VoxML by Motorola

Index




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