Using Induction Loops at Delhi Metro Platforms: A Guide for Hearing Aid Users

An induction loop, also known as a hearing loop, is a sound system for use by people with hearing aids. To use it, follow these steps:

  1. Switch your hearing aid to the ‘T’ setting: This stands for “Telecoil” or “T-coil.” Many hearing aids have a switch or button that allows you to change to this setting. Check your hearing aid’s manual if you’re unsure how to do this.
  2. Ensure you are within the loop area: Induction loops create a magnetic field within a defined area, typically marked by signage. Ensure you are within this area for the best audio experience.
  3. Adjust volume if necessary: Once on the ‘T’ setting, you may need to adjust the volume on your hearing aid to your comfort level.

If you have any issues or if the sound isn’t clear, you might need to check if the induction loop system is functioning correctly or if your hearing aid is properly set up.


Induction loops, also known as hearing loops, are installed in various public places, including metro platforms, to assist people with hearing aids. These systems transmit sound directly to hearing aids equipped with telecoils (T-coils).

When you see a sign instructing you to switch your hearing aid to “T,” it means you should activate the telecoil setting on your hearing aid. This setting allows the hearing aid to pick up the electromagnetic signal from the induction loop system, which provides clearer sound by reducing background noise and focusing on the intended audio.

In the context of the Delhi Metro, this helps passengers with hearing aids to hear announcements and other important information more clearly.


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