Configuring the NVDA.

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Configuring the NVDA.

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Saturday, 06 March 2010 09:36

9. Configuring the NVDA.
9.1. General Options.

The Options dialog box General is found within the preferences menu and contains the following options:
Language: a combo box that allows you to select the language to appear. There are many languages, and the last item in the list is called "Windows". This option causes the NVDA use the same language that Windows is currently using (in the control panel). Note that NVDA needs to be restarted after selecting to another language. NVDA will ask if you want to restart as soon as you select the new language and press OK.
Save Settings on Exit: checkboxes as NVDA to automatically save the current configuration on exit NVDA.
Warn Before Closing NVDA: checkbox that allows you to choose whether or not NVDA should ask if you are sure when you want to exit the program;
Degree of information in the log: combo box lets you choose how NVDA will record their activities while running. In general, users do not need to move this option, since the normal is not in a high level. However, if you want to provide information for reporting a bug, etc.., Then it may be a good idea to check this option to a higher level. 9.2. Synthesizer.

The item synthesizer, which can be found in "Synthesis ..." in the Preferences menu, allows you to select which synthesizer NVDA should talk. In this item, there will be a simple combo box that lists all available synthesizers. Select the synthesizer you want using the arrow keys and then press ok. If an error when running the synthesizer, a message box will alert you to this fact, and keep the old synthesizer running.
The current list of synthesizers that NVDA supports it: eSpeak, SAPI4, SAPI5, Audiologic, Display, and Silence.
ESpeak synthesizer is built directly into NVDA and not depend on any special driver or tool for speech engines to be installed. NVDA start using eSpeak by default. This synthesizer should work on any system that runs the NVDA. So definitely it will work when running NVDA from a USB device or CD, in any system. The options are so that it can be replaced.
NVDA currently has two drivers SAPI4. Because users have reported different results for both drivers, try to work with both and see which one works best for your needs.
Synthesizer display is useful for developers who want to read what they're talking about NVDA, NVDA to test with your applications.
The driver synthesizer Silence is not that useful, unless you want to not only speak while NVDA is running.
Note that no matter how many voices SAPI4 or different SAPI5 you install on your system, just synthesizers SAPI4 and SAPI5 itself appear in the item Synthesizers. To select one of the voices, select SAPI4 or SAPI5 and then the item Voice Options you can choose the voice you want.
9.3. Voice Options.

The Voice Options item, found in the Preferences menu contains options that let you change the sound of speech. You can also configure many of the options from any location by pressing Control + INSERT with one of the arrows. The arrows on the left and right allow you to browse through the various options, and the up and down allow you to increase or decrease particular option.

The dialog box contains the following options:
Voice
A combo box listing all the current synthesizer voice. You can use the arrows to hear all the options of voices.
Variant
A combo box that allows you to select the variant with the synthesizer will speak. Currently, only the eSpeak supports this option. ESpeak variants are as voices, as they provide slightly different attributes.
Speed:
Option that goes from 0 to 100 (0 being the lowest speed and the largest 100).
Tom:
Option that goes from 0 to 100 (0 being the lowest note and 100 the highest).
Vol
Option that goes from 0 to 100 (0 being the lowest point and 100 the highest).
Inflection:
Option that allows you to choose which inflection (increase and decrease in tone) should use the synthesizer to speak.
Speak all punctuation:
A checkbox that when checked, causes the NVDA speak all punctuation symbols such as words (very useful for writing reviews). When not checked, NVDA will read the sentences in correct intonation, but will not speak the punctuation symbols.
Saying Cap before Uppercase:
A checkbox that when checked, causes the NVDA say "ch" before an uppercase letter, when passing through it with the arrow keys or talking them to enter. Generally, NVDA slightly increases the tone for any capital letter, but some synthesizers may not support this feature as well.
Capitalized beep:
If this box is checked, NVDA will make a short beep every time you are talking about an uppercase character. As in the previous option, this tool can be useful for synthesizers that do not change the tone for letters.
9.4. Keyboard Options.

This dialog box is found in the Preferences menu, containing the following options:
Keyboard Layout:
This combo box lets you choose what type of keyboard layout NVDA should use. Currently, the two layouts that comes with NVDA are the Desktop and Laptop.
Use Capslock As a modifier key NVDA:
If this option is checked, the capslock can be used as a modifier key NVDA.
Use Insert Extended As an NVDA modifier key:
If this option is checked, the INSERT key (usually found above the arrows) can be used as a modifier key NVDA.
Use Insert Numpad As a modifier key NVDA:
If this option is checked, the Insert key on the numeric keypad can be used as a modifier key NVDA.
Talking Characters typed:
A checkbox that when checked, means that NVDA will announce all the characters that you type on the keyboard. You can also configure this option from anywhere by pressing INSERT +2.
Speak typed words:
A checkbox that when checked, means that NVDA will announce all the words you type on the keyboard. You can also configure this option from anywhere by pressing INSERT +3.
Speak Command Keys
A checkbox that when checked, means that NVDA will announce all the keys that are not characters that you type on the keyboard. This includes combinations such as Control + any letter. You can also configure this option from anywhere by pressing INSERT +4.
9.5. Options Mouse.

This option is found in the Preferences menu and contains the following items:
Announce Changes in the bush for Mouse:
A checkbox that when checked, means that NVDA will announce the format of the mouse pointer every time it changes. The mouse pointer changes to the Windows format, for example, when something is editable or when some application is open, etc..
Post Text Under Mouse:
A checkbox that when checked, means that NVDA will announce the text that is below the mouse pointer at the moment, to be moved around the screen. This allows you to find things on the screen simply by moving the mouse, instead of trying to find them by navigating through the objects.
Post Object Type When the Mouse Between Him:
A checkbox that when checked, means that NVDA will announce the paper (type) of the object, so the mouse is passed over it.
Play Sons Coordinate When the mouse is moved:
Mark this checkbox will cause the NVDA touch beep when moving the mouse so that the User can know where the mouse is in relation to the size of the screen.
Brightness Control Volume Coordinate Sonoras:
Checking this checkbox causes the volume of the beeps of coordinates is controlled according to the amount of brightness that the screen displays below the mouse. This option may cause some performance issues in Windows Vista, so it is unchecked by default.

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