Introduction –

A very special note about human-ear is that humans do not posses control over activity of this vital organ. An incidental sound has to be heard by a human being unless she /he is sleeping or unconscious. Ofcourse there are artificial ways, but natural. However, another fact is that everyone of us may have different capacities of listening to the same sound.
We range from people who can listen to even a slightest noise to people – completely deaf. This particular document intends to connect a technological solution (to this problem) and the socio-economical (and why not political) conditions in India (and countries alike). We encourage the readers to implement the device and/or provide us with their inputs and/or observations.