Over the past 20 years, the web has transformed from a tool for the scientists at CERN to an information access centre for the world to a platform where people can get things done. Web 2.0 is this transition from the web being a static information access point to a dynamic, customizable and social platform. IIL contributes to this transformation of the web. We are currently working on one extension of Web 2.0, viz. Travel 2.0 where we aim at building technological revolutions in the travel industry. Travel 2.0 is all about “empowering” the user and enabling them to share information online that can be accessed by other travellers. We take the information to the traveller, rather than them searching for it.

Sound-source Separation, Sound Localization and Speech Recognition

This project deals with 3 aspects of acoustics processing. The first aspect deals with separating multiple simultaneous sound emitting sources. The second aspect deals with localizing the vector identifying the direction of the sound source. The third aspect deals with actually recognizing the speech against a trained grammar. Together, the project aims at recognizing the speech spoken by multiple people simultaneously.

N-input Microphone Multiplexer

While working on a speech and acoustic processing project we encountered a unique problem of sourcing sound multiplexing hardware. Most commercial-grade h/w available cost around $400 which is unacceptable to our requirements. This called for the in house development of the 

N-input Microphone Multiplexer. The project involves development of a low cost mike multiplexer hardware capable of taking i/p from six LNA microphones and interfacing this h/w through a standard Linux driver.