In contrast to a conventional bell ball (i.e. a ball containing a bell for signalling), the digital bell ball developed as part of our project can emit an acoustic piping signal at different audio frequencies.
The research question that now arises: Which of the two audio frequencies listed do you consider pleasant?
Audio 1:
Audio 2:
Click here to vote: https://pollunit.com/polls/rfkz2y6zrozcc0wz07zg_a
The sound frequency that wins the vote will be set as the standard frequency in the app!
You can find more information on the development of the digital bell ball here.
Become part of our research team and support our project with your ideas. Questions are also very welcome. Write a comment or contact us by e-mail.
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