On-screennotification
On-screennotificationhelpshearing-impairedpeoplebeawareofthestatusoftheircomputer.On-screen
notificationreplacessoundswithvisualcuesortextcaptionstoindicatethatactivityishappeningonthe
computer.Asaresult,systemalertsarenoticeableevenwhentheyarenotheard.Forexample,whenyou
selectoneobjectwithyourkeyboard,theobjectishighlighted.Whenyoumovethepointertooneobject
withyourmouse,theintroductorytextoftheobjectisdisplayed.
Touseon-screennotification,openControlPanel,clickEaseofAccess➙EaseofAccessCenter,and
thenclickUsetextorvisualalternativesforsounds.
Audionotification
Audionotificationhelpsvisuallyimpairedpeopleorpeoplewithweaksightbeawareofthestatusoftheir
computer.
Touseaudionotification,openControlPanel,clickEaseofAccess➙EaseofAccessCenter➙Usethe
computerwithoutadisplay,andthenselectTurnonAudioDescription.
Narrator
Narratorisascreenreaderthatreadswhatisdisplayedonthescreenaloudanddescribeseventslike
errormessages.
ToopenNarrator,dothefollowing:
•ForWindows7:ClicktheStartbutton.Then,typeNarratorintothesearchfield.Inthelistofresults,
clickNarrator.
•ForWindows8.1:Moveyourpointertothetop-rightorbottom-rightcornerofthescreentodisplaythe
charmsandclickSearch.Then,typeNarratorintothesearchfield.Inthelistofresults,clickNarrator.
FormoreinformationabouthowtouseandconfigureNarrator,seetheWindowsHelpandSupport
informationsystem.
Screen-readertechnologies
Screen-readertechnologiesareprimarilyfocusedonsoftwareprograminterfaces,helpinformationsystems,
andavarietyofonlinedocuments.Foradditionalinformationaboutscreenreaders,seethefollowing:
•UsingPDFswithscreenreaders:
http://www.adobe.com/accessibility.html?promoid=DJGVE
•UsingtheJAWSscreenreader:
http://www.freedomscientific.com/jaws-hq.asp
•UsingtheNVDAscreenreader:
http://www.nvaccess.org/
SpeechRecognition
SpeechRecognitionenablesyoutocontrolyourcomputerbyvoice.
Usingonlyyourvoice,youcanstartprograms,openmenus,clickobjectsonthescreen,dictatetextinto
documents,andwriteandsende-mails.Everythingyoudowiththekeyboardandmousecanbedonewith
onlyyourvoice.
ToopenSpeechRecognition,dothefollowing:
•ForWindows7:ClicktheStartbutton.Then,typeSpeechRecognitionintothesearchfield.Inthelist
ofresults,clickSpeechRecognition.
Chapter3.Youandyourcomputer27
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