The DAF/FAF application for iPhone/iPod ! The DAF/FAF application for iPhone/iPod !
iSpeak is usefully by fluency-shaping therapy.
DAF stands for "delayed auditory feedback.
When you use the application, the signal of the stammerer’s voice will played back to him/her more slowly, which you can choose. The range goes from 20 to 300 ms (milliseconds).
FAF stands for "frequency altered feedback. When you use the application, the signal of the stammerer’s voice will pitched to a higher or lower Frequency, wich you can choose.
Both methods are recognized as an very effective way to develop good speaking habits.
Improvement in speech can rise up to 90%!
FAF and DAF can be used simultaneous to maximize the positive effect.
For best use, use the “Apple Earphone with Remote and Mic “ delivered with your iPhone, or order it from the iTunes Store.
Works on all software versions, included version 3.0.1!
Note: iSpeak cannot be used in combination with the phone function, this is a standalone application.
If u don't have an iphone or ipod , u can use our stand alone DAF device Defstut, see the site www.defstut.com for more information about this device.
For Defstut orders u can send a mail to : Order Defstut here
Buying iSpeak software is only possible trough iTunes: 
