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View Full Version : The Voice Full version



sharaz191
09-02-2005, 02:27 PM
Now if you are blind, you may need initial sighted assistance with the installation, but after that you should be able to work with the software using fixed keystroke sequences. The details of that are not specified here, because these may vary with the brand and type of device.

Once started, The vOICe MIDlet will continuously grab and sound snapshots from the camera. There are no connection costs while using it, because The vOICe MIDlet runs off-line. Each camera snapshot is sounded via a left-to-right scan through the snapshot while associating height with pitch and brightness with loudness. For example, a bright rising line on a dark background sounds as a rising pitch sweep, and a small bright spot sounds as a short beep. A number of key commands are available to change settings. The "0" key toggles the muted state. The "1" key toggles the negative video mode, which can help to see/hear small or thin dark items on a bright background. The "7" key toggles a mode that prevents visual sound stuttering on devices that cannot handle simultaneous visual sound rendering and playing. The "9" key toggles between different contrast enhancement modes. The "#" (pound) key toggles between different sound volume levels when not muted. The default sample rate is 16 kHz, but lower sample rates can be selected by using the "DOWN" key (joystick down), and higher sample rates can be selected by using the "UP" key (joystick up). Available sample rates are 8 kHz, 11 kHz, 16 kHz and 22 kHz, but phones need not support all of these sample rates. Lower sample rates give lower sound quality, but may offer somewhat less sluggish responses. The "RIGHT" key doubles the visual sound duration to two seconds, while the "LEFT" key returns to the default one-second visual sound duration. Note that on some devices the "UP", "DOWN", "LEFT" and "RIGHT" keys may be mapped through the "2", "8", "4" and "6" keys, respectively.

The "*" (star) key toggles the talking color identifier on and off. This color identifier speaks the color of whatever shows at the center of the camera view. Note that results of color recognition depend on ambient light and camera quality. Recognized colors include (dark, normal, and light) red, green, blue, cyan, yellow, orange and magenta, as well as combination colors such as red-orange. Black, grey and white are also identified, bringing the total number of identified colors and shades to 47. Enjoy!