Video Voice Speech Training System

Formant Displays

Vowel Production, Word Articulation & Connected Speech

In Video Voice's unique, "F2 vs. F1" matrix display, isolated vowels appear in general regions of the screen, and words have shapes determined by their phonemic components. All models are clinician-defined, so you determine the program content and select appropriate therapy targets for each individual in your caseload. Symbol positions in the built-in vowel chart are adjustable, so it can be customized for different speakers' voices.

Added in fall 2008, the Sound Spectrogram and Multi-Frequency Displays illustrate the F1, F2 and F3 frequency ranges and offer options for work on high-frequency sound distortions such as lateralized /s/ or tongue protrusion (lisping. These displays can help train /s/ and /sh/ distinctions for hearing-impaired speakers and others.

The F2/F1 matrix Formant Display can be used in two ways. In the Practice format, the goal is to match the model pattern. The model and trial appear on the screen simultaneously for easy analysis of similarities and differences, with "instant replay" for review as needed. With click of your mouse, you can change models "on-the-spot" to let individuals practice against their own voice patterns.

The other matrix display format, Gobble, is an "eat-the-dots" style game that takes the boredom out of drill work and encourages repeated production of targets. Its live feedback also stimulates vocal play and helps speakers find and maintain appropriate articulator positions for vowel and other sound production.

The Temporal Display's cross-time representation of the formant frequencies assists in remediation of durational articulation errors and offers a way to practice segmental targets in a connected speech framework.

The Formant Displays have numerous therapy applications. Auditory feedback reinforces all visual displays, letting speakers both see and hear their productions. Animated cartoon graphics are available to reward good performance in all displays. Some displays offer scoring against a therapist-defined goal, with selective storage of results for later review.

The newest Formant options are the Multi-Frequency Displays. The Sound Spectrogram illustrates the F1, F2 and F3 components of productions, and summarizes the results from each frequency range as trace lines. This display is primarly useful for clinical assessment productions, and samples can be stored.

The Spectrogram trace lines can then be used as models for practice with the Temporal and F3/F2 Matrix displays. This feedback is particularly useful for work on distortions of /s/ and other high frequency sounds. The original F2/F1 displays can detect the basic presence or absence of high frequency sounds, but the Multi-Frequency displays actually show production errors. The Temporal display mode represents speech streams in 2-10 second durations. The F3/F2 Matrix mode also has a live feedback Gobble option. These displays are not scored, but reward animations can be manually activated, and the patterns can be saved for reuse.

Learn more about the Multi-Frequency Temporal Display

Learn more about the Multi-Frequency Matrix Display

Click on images for full screen displays.

Site hosted by

Updated 11/19/2008