Of course, this also applies to the computer’s operating system and other associated software. For example, if someone uses a braille display, this must be compatible with the screen reader. When choosing a screen reader, it is also important for it to be compatible with the devices used in the work place. However, since not every user is able to or likes to work with inferior speech output, the quality of the screen reader and the built-in synthesisers is extremely important. For this reason, those using screen readers have, in many cases, had to accept an artificial-sounding speech output, similar to how a robot speaks. Although the development in ongoing, synthetic language still differs markedly from natural human language. The development of synthetic language is one of the main tasks of computational linguistics. The quality of speech output depends on the language being used, with English being better developed since most voice synthesisers are developed in English. After all, some of these tools use complex computer linguistic calculation programs whose development costs have to be reinstated. There are free applications as well as programs that creep into the four-digit range. The quality, reach, and price of these programs can vary considerably. A distinction must be made between external screen reader programs and internal, system-side applications.
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