How the VA 601i Fluency Enhancer Device works

Altered Auditory Feedback (AAF) is a collective term for Delayed Auditory Feedback (DAF), Frequency Altered Feedback (FAF) and masking.

It is well known that when People Who Stammer (PWS) talk in unison with fluent speakers they become fluent. The concept of 'second speech' is produced by the device via a tiny microphone & headset and this in turn promotes fluency.

Some 10 years of research has clearly demonstrated that the use of FAF or DAF during reading, results in a reduction in stammering for most PWS. One can expect a reduction in stammering of 40% to 85%.

The VA601i units are shipped with a variety of optimal settings pre-installed. These settings allow a user to explore the setting that works best for them. Further calibration, using a PC and in conjunction with a Speech Therapist can enhance the effectiveness of the device. Once the optimum settings have been established, the settings are stored on the device.

The user can adjust and fine-tune the settings using a PC or using the controls on the device to select different programs. Several modes can be selected on the device itself; this allows for varying surroundings and background noise levels. VoiceAmp has also devised an additional in-ear solution that allows transparency in the wearing of the device.

VoiceAmp have devised a self-assessment program whereby a user can test the effectiveness of a device using a software package and a USB cable.

A self assessment questionnaire and reading evaluation can be emailed to VoiceAmp Labs for analysis. This will help people without access to a Speech Therapist to establish the optimal settings for a device.

Professional help and support is always advised, as these are assistive devices and not miracle cures. Young children do respond to these devices, but we do not recommend that assistive devices are used to replace therapy and ultimately parents should consult professional advice if they are unsure. VoiceAmp have invested heavily in training Speech Therapists in the calibration and fitting of these devices.

Stammering is a highly individual disorder and the settings and effectiveness may vary considerably from person to person. Ultimately, trying a device is the only sure way to test the effectiveness of this technology.

VoiceAmp are able to provide examples of fluency improvement from others with similar conditions and we strive to continue developing our technology to help as many people as possible.

This diagram demonstrates how the modified speech pattern is played back to the speaker via a tiny headset as they are talking, thus improving their fluency.