International Journal of Scientific Research and Engineering Development

Projector-based presentations are becoming a crucial component of professional communication, instruction, and training in today's digital corporate and educational environments. However, utilizing a keyboard, mouse, or remote control to control presentations frequently disrupts the presenter's flow and restricts their range of motion. This study proposes a Smart Projector Control System Using a Laptop-Based Voice Assistant to solve this problem. The laptop, which serves as the main controller for the projection display in the suggested system, receives voice commands directly. Simple voice commands like "next slide," "previous slide," "play video," "pause," "open page five," and "zoom in" allow the presenter to handle PowerPoint presentations, movies, and PDF documents. The voice input is recorded via a microphone that is attached to the laptop.It is processed to carry out the necessary action utilizing voice recognition techniques. An Authorized Voice Frequency Filter is used to stop unwanted access. To ensure safe and controlled functioning during lectures or meetings, the system only accepts commands within the registered presenter's voice frequency band. The suggested solution offers a professional and contemporary presentation experience, increases accessibility, boosts presentation efficiency, and allows for full hands-free multimedia control. Classrooms, colleges, seminars, offices, and conferences can all use this solution.

Pooja Bachhav, Anushka Gangurde,Sarika Pawar, Praniti Shirsath, "A Smart Projector Control System Using Laptop-Based Voice Assistant" International Journal of Scientific Research and Engineering Development, V8(6): Page(2842-2849) Nov-Dec 2025. ISSN: 2581-7175. www.ijsred.com. Published by Scientific and Academic Research Publishing.