Pocket DAF/FAF Assistant is a software application that implements Delayed Auditory Feedback (DAF) and Frequency Altered Feedback (FAF) techniques on handheld computers running Windows Mobile 2003 for Pocket PC and Windows Mobile 5.0 operating system. DAF/FAF Assistant can be used by people having stuttering problem to control their speech fluency, increase their confidence level and develop the carryover fluency when the techniques are used on a regular basis.

DAF/FAF Assistant can be used by people who have stuttering problem to control their speech fluency, increase their confidence level and develop carryover fluency when techniques are used on a regular basis.

Delayed auditory feedback (DAF) delays your voice to your ears a fraction of a second. The application provides delay range from 40 to 220 milliseconds. The delay increment step is 10 milliseconds. A short delay (50-80 milliseconds) almost instantly reduces stuttering without changing the speech speaking rate. A longer delay (90-220 milliseconds) makes you stretch your vowels and talk slower. This can help with even severe stuttering, but requires training, mental effort, and may sound abnormal.

Frequency Altered Feedback (FAF) shifts the pitch of your voice. The application provides the pitch shift in the range from one-half octave down to one-half octave up. The FAF enhances the effectiveness of the application when is used simultaneously with DAF.

Additional frequency shifting algorithm (Fast FAF option). The standard FAF algorithm provides best sound quality but it requires a powerful processor. The Fast FAF option when enabled turns on the simplified frequency shifting algorithm that can work better on less powerful computers.

The application saves the configured settings when it is closed and restores them when it is restarted.

The Auto Start feature when enabled will start the sound playback immediately after the program starts. DAF/FAF Assistant for Windows allows you to assign a shortcut key to the application, so that you can start the DAF/FAF by pressing a single shortcut key.

Here are some key features of "DAF FAF Assistant for Windows":

￭ Delayed auditory feedback (DAF) delays your voice to your ears a fraction of a second. The application provides delay range from 50 to 250 milliseconds. The delay increment step is 10 milliseconds. A short delay ( 50-80 milliseconds) almost instantly reduces stuttering without changing the speech speaking rate. A longer delay (90-250 milliseconds) makes you stretch your vowels and talk slower. This can help with even severe stuttering, but requires training, mental effort, and may sound abnormal. Actual DAF delay can vary due to hardware differences.

￭ Frequency Altered Feedback (FAF) shifts the pitch of your voice. The application provides the pitch shift in the range from one-half octave down to one-half octave up. The FAF enhances the effectiveness of the application when is used simultaneously with DAF.

￭ DAF/FAF Assistant saves the configured settings when it is closed and restores them when it is restarted.

￭ DAF/FAF Assistant is compatible with multiple handheld devices running WindowsMobile 2003 for Pocket PC and Windows Mobile 5.0 operating systems.

￭ DAF/FAF Assistant is compatible with Bluetooth (wireless) headsets on those Pocket PCs that support Bluetooth headset connections. Please note that currently Dell Axim x51 does not support Bluetooth headsets. Microsoft(TM) and Dell(TM) are planning to release a patch to fix this problem. At this moment we recommend to use wired headsets with Dell Axim x51 Pocket PC.

￭ Easy to install, easy to use. The application provides installation program that creates all necessary icons and shortcuts on the computer desktop. The graphical user interface is intuitive and easy to use.￭

Requirements:

￭ DAF/FAF Assistant requires handheld computer running Windows Mobile 2003 for Pocket PC or Windows Mobile 5.0.

￭ For better performance the application requires external headphones and microphone (where available).

Limitations:

￭ The trial version of the application can be used for up to 7 days