ATMac

For users who have problems hearing, but still have some useful hearing ability.

iSign is a tutorial and reference program for American Sign Language (ASL) from iDev2. It was designed specifically for the iPhone and iPod Touch. The program contains an animated phrase book of 800 signs.

The Laboratory for Understanding Collaborative Technology at Northwestern University is working on a project to build and evaluate new original technologies for users with disabilities. They are currently recruiting subjects with a variety of impairments (cognitive, sensory or motor) from the Chicago area.

This video is about the use of video iPods in a special education classroom which caters for children with intellectual disabilities and language or hearing difficulties such that sign language (ASL) is their primary mode of communication.

Apple put on a September Special Event yesterday, announcing iTunes 8, the iPod Nano 4G and other smaller upgrades to software and to the iPod Touch. These announcements, especially that of iTunes version 8 now with full accessibility for Windows and OS X Mac, are fantastastic for users with a disability and reaffirm Apple’s commitment to accessibility.

MovCaptioner keeps repeating a segment of the movie until you are done typing what you hear. Just hit the Return key and it will save your caption and automatically advance to the next few seconds of the movie, allowing you to zip through your captioning tasks in no time flat.
You don’t need to be a [...]

CapScribe is an open-source Mac OS X application to help you add captions and/or audio description to audio and video files.

Xmart Volume listens to the ambient sound level and turns down your headphone volume when there’s a louder-than-average sound outside - like somebody trying to get your attention.

The deafmac.org blog has posted a list of captioned movies currently available in the iTunes Store, by which I assume they mean the USA iTunes Store. Only twenty one captioned movies so far, but hopefully the number will grow quickly.
Does anybody have news about iTunes stores in other countries and whether captioned movies are available?
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How to turn your Apple laptop with built-in microphone and GarageBand into a functioning hearing aid
Website: Using your Apple laptop as a hearing aid/sound enhancer
ATMac Comment: This is certainly a cute idea, but it’s extremely basic in terms of hearing aids - I doubt whether it would have much functional use for anybody with a [...]

Some utilities for dealing with subtitles or captions:
SubCleaner
Blurb:
SubCleaner can:

remove unnecessary characters & formatting errors
limit the number of chars per line & the number of lines per subtitle
convert MicroDVD, SubViewer, SubViewer 2.0, and TMPlayer subtitle formats to SubRip (.srt) format.

SubSync
Blurb:
You have encoded your favorite series, a friend sends you the subtitles, but the filenames don’t match, [...]