General, Research, Technology

Scientists want to do an audio test for coronavirus, and you can already pass it

One of the main problems associated withthe spread of coronavirus, it remains that the tests for COVID-19 are not available to everyone. Because of this, the total number of cases in the world can be much larger than in official statistics. It is enough to look at what is happening in the USA now: when there were enough tests for coronavirus there, every day 20-25 thousand infected people began to add. To help with this problem, researchers have developed a free experimental application in which artificial intelligence determines whether a person can be a carrier of this dangerous infection.

Everyone can take this test.

I note right away, this service is still under development and cannot be used as a substitute for medical tests on COVID-19. It is not approved by any medical organizations and especially WHO. Therefore, at the first symptoms of the disease, it is better to consult a doctor, and not try to find out the diagnosis using such applications.


  • 1 Coronavirus Test Online
  • 2 Voice coronavirus test
    • 2.1 Audio Test
    • 2.2 Voice test
  • 3 How cough is distinguished with coronavirus

Coronavirus test online

Audio test COVID Voice Detector from University ScientistsCarnegie Mellon works with speech recognition and artificial intelligence. To understand how it works, just go to the application website from a computer or mobile device - the main thing is that the microphone works on it. Since the service is not adapted for the Russian language, below you will find instructions on how to use it correctly. And then I’ll tell you how it all works.

COVID Voice Detector was created in collaboration with researchers and developers from and, which specialize in voice analysis.

First you need to follow this link and register. All that is needed is a username and password, you can not leave mail if you are not going to recover the forgotten password later.

Register on the COVID Voice Detector website. It’s enough to come up with a name, password and check all

On the same page below there are interestingpoints to be agreed upon. So, you agree to the transfer of your voice recordings to Carnegie Mellon University; in addition, you do not mind if in the future these records can be used for commercial purposes and the creation of other services. If this does not bother you, you can register and proceed to the next step.

To start passing the test, you need to click Create

It is further proposed to fill out a short form andIndicate age, gender, height, weight and race. In the latter case, you need to choose Caucasian - in English, this is the standard designation for the white race.

Items in order: age, gender, height, weight, race

This should be put in the column of choice of race

It remains to answer a few more questions: do you have a cough, do you sneeze, do you have a fever, have you taken medical tests for coronavirus, or are you a carrier (or if you had one).

In order: the presence of coughing, sneezing, high fever (fever), whether a medical test for coronavirus was previously, whether COVID-19 was diagnosed

After that you can runexperimental test. At all stages, first click on the microphone icon, record, and click on it again to stop recording. At the first stage, you need to specifically cough 3 times.

Click on the microphone, cough 3 times, click on the microphone again, then Next

After that, pronounce beech “A” as long as possible - without stopping until you have enough breath.

Say A for as long as you can

Similar steps need to be done with the letters "E" and "O".

Repeat the same with the letter E

And with the letter O

Next, the application will ask you to count from 1 to20 in English. If you can’t count in English, you can do it in Russian too, because the application does not analyze the sounds themselves, but the pauses in breathing that you make while counting.

You can count in Russian, but better in English

The same with the alphabet - if you do not want to pronounce English letters, pronounce the letters of the Russian alphabet. This is the last step before beginning the analysis of the results.

Try to pronounce the English alphabet, if not, then Russian

At this point, the AI ​​compares your results with those of coronavirus patients.

Finishing voice test and analyzing the result you will see something likeloading scales. According to the researchers, the smaller the value of this scale (the more to the left it is located), the less likely you are to carry the COVID-19 virus. I seem to be safe so far.

The smaller this scale, the less likely that a person has a coronavirus

Voice coronavirus test

And now the main thing is how it works, and can the results be trusted? To do this, determine why a specific step of this test is performed.

Audio test

Cough of patients with coronavirus is distinct

At the very beginning, you cough 3 times -artificial intelligence analyzes the sounds of coughing and compares them with the results of other users, including those who have taken a coronavirus test or who generally have a confirmed diagnosis. To do this, at the very beginning, you filled out a questionnaire with age, weight and symptoms of the disease.

Voice test

All these "AAAA", "LLCOO" and "EEE" in the firstAI needs a turn in order to measure lung volume by recording. But I read an interview with the creators of the application to Futurism, and there they mentioned that the recording also fixes if you stopped the pronunciation - for example, due to a cough. This information is also analyzed by artificial intelligence in the formation of the result.

Score and alphabet. This is another test to understand how many numbers or letters you can pronounce in one go and without a pause for sneezing or coughing.

As soon as the application receives all the necessarydata, it compares your record with the voice data of patients who have confirmed COVID-19, after which it recognizes the signs of coronavirus and puts a rating of 1 to 10 in proportion to the probability with which they are present in humans. Researchers do not hide the fact that while the accuracy of the test is rather small, however, if more people (both sick and healthy) use the service, the neural network will be able to learn from more initial data. Then the results will be more accurate, but I would not yet trust my health to artificial intelligence. Nevertheless, medical tests approved by WHO, so far will be more effective.

The rating that the application shows isan indicator of how your voice matches the voices of other patients with COVID that we tested. This is not a medical test or a guide to action. The main goal of our efforts and the site at the moment is to collect as many voice records as possible, which we could use to improve the algorithm, ”says one of the creators of COVID Voice Detector.

How is a cough with coronavirus

Where did the researchers come fromresults of patients with coronavirus? To collect this data, a team of scientists turned to colleagues around the world. These colleagues not only helped them collect audio recordings from patients with COVID-19, but also from patients with other viruses, so that they could teach the algorithm to detect differences. They even watched news videos to find interviews with patients and add their results to the AI ​​dataset.

COVID patient’s cough is very clear, they sayauthors of the application. “The virus affects the lungs so much that the respiratory functions and some other vital parameters are disrupted, and they can be seen in the voice, even if the infected person simply says a set of letters.

Coronavirus strongly affects the lungs, so seriously ill patients are connected to mechanical ventilation

It seems to me that despite the fact that such a methodthe diagnosis of the disease is still quite raw, in the future it can make a real revolution in determining the virus in a particular person. Obviously, COVID-19 is not the last test of mankind (Spaniard and other diseases prove this), and if in the future a person can check himself for the presence of infection using a smartphone or tablet, this will help stop the spread of the virus. Let's see what happens with the COVID Voice Detector in the future: developers will definitely need time before this test becomes more or less accurate.