Speech recognition: state-of-the-art ?

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2 total messages Started by Paul Ducklin Mon, 17 Dec 1990 20:26

#1383

Author: Paul Ducklin
Date: Mon, 17 Dec 1990 20:26

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I'm trying to get a handle on the state-of-the-art in speech
recognition systems. Could anyone in netland let me have some
idea of (a) where we are now and (b) where we'll be in 2-5
years time re...

  * for a specific voice, and a non-mega$ desktop machine, what's
    a good recognition vocabulary? 5000 words? 10000 words? I
    hear that there's a product out called "Dragon Dictate" for
    which a 30000 word vocabulary has been mentioned (h/w reqd.
    = 386-type). Is this genuwyne? What happens if you get a cold?
    Will you need to train all 30000 words again? What sort of
    recognition speed is likely on a non-Cray?

  * for "generic voice" (eg: all American-speaking females), what is
    a good vocabulary? What sort of reliability is attainable?

  * what's good vis-a-vis "natural" or continuous speech? How
    capable are recognition systems at handling speech without
    staccato-type interword pauses?

Paul Ducklin
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CSIR, Pretoria, RSA
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Re: Speech recognition: state-of-the-art ?

#1384

Author: John C. Schultz
Date: Wed, 19 Dec 1990 21:56

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In article <1990Dec17.202616.3021@quagga.ru.ac.za> csirpd@quagga.ru.ac.za (Paul Ducklin) writes:
>
>  * for a specific voice, and a non-mega$ desktop machine, what's
>    a good recognition vocabulary? 5000 words? 10000 words? I
>
>  * for "generic voice" (eg: all American-speaking females), what is
>    a good vocabulary? What sort of reliability is attainable?
>
>  * what's good vis-a-vis "natural" or continuous speech? How
>    capable are recognition systems at handling speech without
>    staccato-type interword pauses?


I would like to add to this list of questions 

   * How reliable is voice recognition in noisy environments with
     respect to vocabulary size?  For example if the system only
     needs to recognize 50 or so words, is that more robust than 
     a 5000 word system? How much more reliable? Don't know answers
     would be preferable to wrong answers.

--
John C. Schultz                    EMAIL: schultz@halley.est.3m.com
3M Company,  Building 518-01-1     WRK: +1 (612) 733-4047
1865 Woodlane Drive, Dock 4,       Woodbury, MN  55125

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