The ability to speak is a key competency for participating in society. Any restriction in speech capability due to age, illness or disabilities results in the risk of social withdrawal for many of those affected. In the ISi-Speech project, a training system is being developed on the basis of computer-assisted speech recognition that allows affected persons to independently train their speech capability. A motivation and feedback system will support the individual training situation. The system is initially intended for persons with significantly reduced speech intelligibility due to a neurological illness such as Parkinson’s disease, multiple sclerosis or dysarthria after a stroke. In the next step, the ISi-Speech technology will be extended to include other clinical pictures or applications.