NVDA is a very high quality open source screen reading software. NVDA software enables blind and vision impaired people to use a computer by communicating what is on the screen using a synthetic voice or braille.The NVDA is open source and free of cost software. However, voice quality of speech engine included with free of cost NVDA is not liked by most users and doesn’t support Indian English or eloquence.
To overcome this problem, NVDA now includes Nuance vocaliser voices for Indian English and Hindi. These voices are popularly known as Sangita and Lekha TTS. The India Distribution of NVDA also includes Eloquence voices for US and UK English which are most popular among users in India.
- support for popular applications including web browsers, email, internet chatting, and office programsincluding Word, Excel, Power-Point and Microsoft outlook.
- NVDA can be installed directly on to your computer, but it has the ability to run entirely from a USBstick or other portable media.
- Reporting of textual formatting where available, such as font name and size, style and spelling errors.
- Automatic announcement of text under the mouse and optional audible indication of the mouseposition.
- Support for many refreshable braille displays.
- Support for common accessibility interfaces including Java Access Bridge.
- Support for Windows command prompt and console applications.
- OCR for reading text present in image files on screen runs on both 32-bit and 64-bit editions of Microsoft Windows XP or later.
- Bundled with Eloquence speech engine for English
- Bundled with Nuance vocalizer voices Sangeeta for Indian English and Lekha for Hindi bundled with eSpeak, a multi-lingual speech synthesizer that supports more than 43 Languages including Hindi, Tamil, Punjabi, Bengali, Telegu, and Malayalam.
- Can use both SAPI 4 and SAPI 5 speech engines.