Guwahati: The Indian Institute of Technology (IIT), Guwahati, has developed and patented "LOQU," a novel method to generate human speech signals directly from vocal cord vibration signals. The technology captures vocal fold movement without invasive procedures, using sensors placed over the throat, the institute said.

This new approach allows for the reconstruction of speech signals from vocal cord vibrations, offering promising applications for speech-impaired individuals and medical settings. The reconstructed speech signals are clear and comparable to traditional speech in extensive comparison tests, holding significant potential for individuals struggling with speech impairments, offering an alternative to traditional microphones, and enhancing speech clarity. The team was led by Professor Samarendra Dandapat of the Department of Electronics and Electrical Engineering and Dr LN Sharma of IIT Guwahati.

The prototype of LOQU was developed on a laboratory scale at a cost of under Rs 2000. "The patented technology (Indian Patent No.: 510923, Grant Date: 15/02/2024, App No. 201831006870) represents a significant milestone in speech research and innovation, with ongoing clinical testing aimed at further validating its effectiveness and exploring diverse applications in medical and communication fields", said IIT-Guwahati.

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