Researchers seeking a way of detecting coronavirus from the sound of a person's cough or even their voice have launched an app to collect recordings from as many people as possible.
Cambridge University's Covid-19 Sounds App asks users to submit recordings of them breathing in and out, coughing, and reading the sentence
Users are asked if they have tested positive for Covid-19 in the last 14 days and if they are still in hospital, though researchers said there is "no way to confirm that whatever a user is inputting is confirmed".
They are also asked about their age, biological sex, other health conditions, symptoms, whether they are a smoker and their approximate location.
Data, to be stored on university servers, will be used to help develop machine-learning algorithms that could be used for automatic detection of Covid-19.
Professor Cecilia Mascolo, from Cambridge's Department of Computer Science and Technology, who led the development of the app, said:
Prof Mascolo said recordings of people without a diagnosis of coronavirus would act as the "control" in the dataset.
The app, which will not provide any medical advice, will not track users, the university said.
It will only collect location data once when users are actively using it.
Once the team have completed their initial analysis of the data collected by the app they will release the dataset to other researchers.