As part of the preparations, we created a prototype enabling the collection of singing samples from the test group. They were used to feed the algorithm based on machine learning and, as a result, teach it to recognize the phrase "turururu". Alexa and Siri work in a similar way, they respond to specific commands. After the learning stage, the final version of the algorithm was plugged into the Żywiec 0.0% competition website.
To improve the performance of the contest application, we used on-the-fly voice processing technology, without sending it to the server. This makes participants immediately know if they are singing rhythmically and can get one of the prizes. The correctness of the task performance can be checked on the animation of a filling bottle of Żywiec 0.0% - when the singers hit the appropriate sounds, the level of beer increases.
We created the website in cooperation with agencies: TWIN .digital collective and Feeders Agency.