Researchers at the Technical University of Denmark, led by Jakob Eg Larsen, have developed an application that could convert your mobile phone into a personal concert speaker, reports New Scientist.
The result is an augmented listening experience in which every note could be heard clearly through headphones.
The researchers carried out experiments during two performances at the Nibe music festival in Denmark last June and involved 19 test participants who used the application on their mobile phones to augment their sound experience at the concerts.
A mixing device on the stage usually sends certain frequencies to an FM radio antenna that broadcasts the signal to phones at the gig.
Since simple portable radio won''t work as a receiver, the FM signal must be delayed once it reaches the phone in order to align with sound from the stage.
The phone''s GPS sensor measures how far it is from the stage, and the software calculates the necessary time delay.
Several study subjects reported that the sound was ‘clean’ and were able to hear the vocals and guitars clearly.
