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Vocal Mirror - Electronic Voice Analysis for Therapeutic Diagnosis

This presentation will discuss the development of Vocal Mirror, a device that analyzes voice usage to diagnose vocal problems. The goal is to create a portable device that can be used by speech pathologists to provide visual and aural representation of vocal issues.

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Vocal Mirror - Electronic Voice Analysis for Therapeutic Diagnosis

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  1. This presentation will probably involve audience discussion, which will create action items. Use PowerPoint to keep track of these action items during your presentation • In Slide Show, click on the right mouse button • Select “Meeting Minder” • Select the “Action Items” tab • Type in action items as they come up • Click OK to dismiss this box • This will automatically create an Action Item slide at the end of your presentation with your points entered. Vocal Mirror - Electronic Voice Analysis for Therapeutic Diagnosis Group 21: Joe Owens-Ream Advisor: Dr. Tom Cleveland

  2. Motivation • Many professional singers and speakers develop vocal problems through misuse of their own talking or singing voice. • This unnecessary wear can lead to problems such as vocal nodules, vocal polyps, cysts, and eventual loss of voice. • By retraining the patient to correctly use their voice, a speech pathologist saves their voice.

  3. Your Voice • Sound is produced by vibrations induced when air is passed by vocal folds • Wear and misuse can lead to nodes and cysts

  4. Problems of Current System • Time spent in voice clinic • Feedback through speech pathologist • No take-home version • Lack of visual and aural representation of problems

  5. Working Solution • The goal of the device is to, from a live signal or recording, extrapolate data about the frequency and amplitude usage of the speaker's/singer's voice.  This data will be analyzed by the system and output information on the pattern of voice usage.  This data can then be used to diagnose speaking/singing problems or bad tendencies.

  6. Goals • Short term: • Create LabView VI to input, display, and analyze audio signal. • Design various analysis sequences to output statistics or live audio information. • Long term: • Design portable device to be carried/worn by patient. • Design device hardware for use in patholigists’ clinic

  7. Work Completed • Researched possible overlap with current devices • Evaluated LabView’s signal analysis suite • Further narrowing of design definition • Researched the physics of sound waves and the physiology of the voice.

  8. Equipment and Costs • Microphone donated from Dr. Cleveland • A/D Board hopefully donated from Dr. King • Use of LabView software is free in BME computer lab • Projected final costs: minimal to none

  9. Further Work • Continue work in LabView on signal analysis suite • Procure A/D board from Dr. King • Create working prototype • Test prototype with Dr. Cleveland • Create board presentation

  10. Contact Information • http://vubme.vuse.vanderbilt.edu/group21_01 • Joe Owens-Ream joe.owens-ream@vanderbilt.edu • Dr. Tom Cleveland tom.cleveland@mcmail.vanderbilt.edu

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