Accessible Test
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- Bu səhifədəki naviqasiya:
- Talking Protractor
- Micro computer Applications Products
Nemeth Across Time(New) Purpose To provide students and teachers of the visually impaired a series of “teach sheets” that address mathematical concepts and Nemeth Braille Code. Project Staff Jeanette Wicker, Project Leader Patricia Bolger, Consultant Derrick Smith, Consultant Background The idea for Nemeth Across Time came from a teacher in the field, Patricia Bolger. She had developed and used the “teach sheets” with her students and found them to be very helpful. Each “teach sheet” has a definition or description, specific vocabulary, description in print, appearance in Braille, process or steps in calculation, formulas, math concepts explained, and oddities or exceptions to the math rule noted. The materials would be available on CD and could be embossed or printed when needed. The product submission was approved by PET and PARC committees. A contract was negotiated with Ms. Bolger and the files were reviewed by another math Consultant, Dr. Derrick Smith. Work Planned for FY 2010 Review each lesson and revise as needed. Identify and create additional lessons as needed to meet the standards set by the National Council of Mathematics. Prepare materials for field testing. Talking Protractor(New) Purpose To provide students and teachers of the visually impaired a protractor that measures to the nearest degree and provides an audible announcement of the measurement. Project Staff Jeanette Wicker, Project Leader David McGee, Manufacturing Specialist
The product submission for the talking protractor came from two teachers in the field. This protractor will enable students with visual impairment to measure any angle and hear the measurement spoken. An optical encoder would be used to record the amount of rotation and the readout would then be translated into degrees (and/or) radians, which would then be reprocessed for speech output. This would provide an accurate means for students to measure angles in mathematics or science classes. Students currently use protractors that provide approximate measurements. Currently available protractors make use of tactual clues (e.g., one dot for 10 degree divisions, two dots for 45 and 135 degrees, and three dots for 90 degrees.) Other values would need to be interpolated.
Develop a prototype of the talking protractor that can be mass produced and meet the needs of students with visual impairments. Micro computer Applications & ProductsAPH Digital Audio Component(Continued) Purpose To create digital audio recording, playback, and navigation components for use in several educational, application, and utility programs under development Project Staff Larry Skutchan, Project Leader Rob Meredith, Programmer Steve Mullins, Special Projects Manager John Zinninger, Senior Technician
Given the close work APH does with the Digital Accessible Information System (DAISY) consortium, the National Library Service (NLS), the APH studio, and the software under development in the Department of Educational Research, APH staff recognized that the creation of a digital audio component that could be shared among several applications was the model that was most efficient for the wide variety of projects under development. Several of the educational software projects, including Book Wizard Reader, Book Wizard Producer, Book Port Transfer, Studio Recorder, Talking Typer, Termite Torpedo, Armadillo Army, Toodle Tiles, and Teacher's Pet require a digital audio recording and playback component. In addition to its needs for playback and recording controls, the Book Wizard and Book Port Transfer projects required navigation controls and the ability to speed up the playback of the recording without affecting the pitch. Given the diverse requirements and the interesting possibilities offered with custom software, APH decided to develop its own digital audio record, playback, and navigation component for use with several projects underway and to develop an interface that uses that control to provide a studio recording application. (See the separate write-up on Studio Recorder.) Through the years, staff continues to enhance the component. In 2007, they added the ability to encode and decode the AMR Wideband Plus format which is what the National Library Service uses for its new Digital Talking Books. Work during FY 2009
Work planned for FY 2010 Staff will continue to enhance the component as needed. Many software users requested the ability to slow down the speed of the audio playback. This would make learning language or music much easier. Windows Direct X filters should be supported. This would allow users of APH audio editing software to use third party plug-ins, commonly referred to as DirectX Plug-ins, for signal processing. File size limitations with the .wav file type are quickly becoming a problem as the power of PCs increases and the demands of users grows. Programmers investigated additional file types for inclusion as the set the component supports. There are still several advanced features that require significant amounts of research to implement. Among these is the addition of a band pass filter and pattern detection. Yet another area of interest is streaming technology. The digital audio component should provide full streaming services to the client in a variety of environments. Server side implementations of the component should be able to provide a local user navigation and time scale services on the server side, thereby reducing the amount of data that gets transferred. The studio has requested several modifications that should make the job of studio monitors easier. These include the following:
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