Speech Accessibility Project

The goal of our project is to collect 1,200,000 speech samples from 2,000 people with dysarthria, where we expect to collect data from 400 people each from five different patient populations. Each person would provide 600 speech samples.

(600 samples/person x 400 persons/etiology x 5 etiologies = 1,200,000 samples)

Our schedule of research procedures is:

• February or March-August 2023: data collection of speech samples from 400 people with Parkinson's.
• August 2023-August 2025: data collection of speech samples from 1,600 people with ALS, CP, DS, and Stroke.

Data collection of speech samples in Year 1 will be a collaboration of the University of Illinois and of mentors from Lee Silverman Voice Therapy (LSVT) Global. Potential participants will be screened both with a questionnaire and by providing a short set of "quality control" speech samples. If the participant does not pass screening, they will be thanked for their interest. Otherwise, the participant is eligible for the study and can do the informed consent process and then engage in contributing speech samples.

Participants can do as many recordings as they wish at whatever time of day is convenient for them. Participants will be able to login to the system at any time, 24/7.

In Year 2, this procedure will be performed with patients from other etiologies with additional advocacy organizations as partners.

Participants who are unable to read text from the computer screen will be offered the opportunity to record speech using a verbal-repetition protocol. In order to participate in the verbal repetition protocol, a participant must be accompanied by a caregiver who is also willing to be recorded. If a participant agrees to this protocol, then the caregiver will read each prompt to the participant. The participant will then repeat the words spoken by the caregiver, or respond to any question asked by the caregiver.

Participants also have the option to provide additional data about themselves, such as their age, race and ethnicity, and the year of their diagnosis. These "metadata tags" are completely optional but are helpful for analysis.

The collected speech samples will be stored securely in a custom database built by the UIUC Beckman Institute. All samples are stored with a unique participant ID code. All samples are annotated by our UIUC research team with technical information about the acoustic waveform and other information.

The entire database of speech samples will be shared with our coalition partners (Amazon, Apple, Google, Meta, and Microsoft), and, after all data collection is complete, with other universities and companies who are willing to sign our data use agreement. Each partner has signed a data use agreement with UIUC that allows these deidentified data to be used for improvements in speech recognition technology and assures the privacy of participants and confidentiality of data.

Inclusion criteria

• Adult (age >= 18 years)
• Self-reported diagnosis of Parkinson's Disease, ALS, CP, DS, or Stroke
• Reads and speaks English in the form of complete sentences
• Has a valid email address
• Ability to access web browser to participate in study

Exclusion criteria

• Is a resident of the State of Washington, Texas, or Illinois (because these states have privacy laws that would not allow us to collect 'voice prints')
• If quality control screening of initial speech samples "fails" because of poor data quality (e.g., poor quality recording environment, or person's speech is "too typical" and not sufficiently interesting to continue collecting)