Discover how Mazenet collaborated with the Chennai Metro to provide people with impaired hearing a seamless hearing experience to listen to the public announcements made at the metro stations. In this case study, we dive deep into the requirements of the Chennai metro and how Mazenet leveraged the Audio Frequency Induction Loop System to help people with diminished hearing hear the metro announcements crystal clear.
REQUIREMENT & CHALLENGES
People wearing hearing aids have a hard time listening to and following the announcements made in the Public Announcement(PA) Systems. This happens as the hearing aids in general are designed to amplify sounds across the frequency range from 20 Hz and 20,000 Hz. However, Public announcement (PA) systems, on the other hand, often produce a wide range of frequencies to ensure that various types of sounds and announcements are adequately transmitted. This broader frequency range may include very low-frequency sounds (bass) to high-frequency sounds (treble). This mismatch results in distorted or uncomfortable sound for individuals using hearing aids, making it challenging for them to understand the information broadcasted through the PA system.
SOLUTION
To address these challenges, Mazenet installed Audio Frequency Induction Loop Systems near elevators, TIDS (Tactical Information Display System), and platforms in metro stations where the footfall is high. The installed induction loop would act as an antenna transmitting magnetic signals from the amplifier to the hearing aids. When the hearing aid user switches his device to the T-coil mode and stands on the designated areas of the induction loop, they can receive the enhanced audio signal from the Audio Frequency Induction Loop System directly in a clearer way.
