What this study is about
We are evaluating how natural computer-generated English speech sounds. You will read 5 short English sentences. For each sentence you will hear 6 different computer-generated versions and rate each one (30 ratings in total). The recordings were produced in advance; nothing you say or do is recorded as audio.
What you will do
The study takes about 10 to 15 minutes. Please use headphones in a quiet place. Read the sentence first, then listen to every version to the end and give each a score from 1 (Bad) to 5 (Excellent).
What we collect
Your scores, a few self-reported background answers (which group describes you, age band, first language, English proficiency, listening device, hearing) and timing information. To make sure each person takes part only once and can resume on another device, you sign in with Google. We receive only your Google account ID and store it as a one-way coded value. We never receive your name, email address or photo.
How your data is used
Scores are analysed in aggregate and may be published in anonymised form. Data is stored securely and kept for 5 years after the results are published. Only the research team (HiFi-MobiNet Team, FPT University, Ho Chi Minh City, Vietnam; technical lead: Nguyen Van Anh Duy) can access it. This is an academic research study without a formal ethics-committee approval number; it collects only anonymous ratings and the background answers listed above.
Your choices
Taking part is voluntary. You may stop at any time by closing the page. To withdraw your data later, email duynvase181823@fpt.edu.vn with the participant code shown on your screen.
Optional acknowledgment
You may let us thank you publicly by name, with or without a photo, on the thank-you wall in our presentation. Your name and photo are stored privately, are never linked to your scores in any publication, and are used only for this acknowledgment. You can ask us to remove them at any time via duynvase181823@fpt.edu.vn.
Technical details
A strictly necessary cookie keeps your study session on this browser so that you can resume. Signing in with Google again lets you resume on another device. Recordings are delivered through short-lived private links. Data is stored in a managed PostgreSQL database and private cloud storage that only the research team can access.
