1. A speech intelligibility testing system, comprising: a sound device for producing a plurality of stimulus words to be heard by a test subject, each of said plurality of stimulus words comprising a plurality of speech sounds; a display means, configured to display to said test subject a set of selectable word pairs corresponding to a set of contrasting speech sounds whenever a stimulus word is provided to said test subject, each of said words comprising a real word with a high degree of familiarity, a first word of said word pair corresponding to said stimulus word and a second word of said word pair differing from said first word by at least one of said set of contrasting speech sounds; and means for said test subject to select one word of said word pair upon deciding which one of said two words was heard.
1. A speech intelligibility testing system, comprising: a sound device for producing a plurality of stimulus words to be heard by a test subject, each of said plurality of stimulus words comprising a plurality of speech sounds; a display means, configured to display to said test subject a set of selectable word pairs corresponding to a set of contrasting speech sounds whenever a stimulus word is provided to said test subject, each of said words comprising a real word with a high degree of familiarity, a first word of said word pair corresponding to said stimulus word and a second word of said word pair differing from said first word by at least one of said set of contrasting speech sounds; and means for said test subject to select one word of said word pair upon deciding which one of said two words was heard. 5. The system of claim 1, wherein said sound device is an Internet telephone.