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Low Cost Voice Communication Device Design Using Ordinary Laser Torch and LDR Available in Bangladesh

Md. Kayesar Ahmmed 1, Anmona Shabnam Pranti 2, and Arif Md. Shahed Iqubal 3
1. EEE Department, Green Land Builders Limited, Dhaka, Bangladesh
2. Faculty, Department of Electrical and Electronics Engineering, IUBAT—International University of Business Agriculture and Technology, Dhaka, Bangladesh
3. Faculty, Department of Mechanical Engineering, IUBAT—International University of Business Agriculture and Technology, Dhaka, Bangladesh
Abstract—As living in the society, communication is the most important activity of human being. All most for every purpose we are communicating with each others. Different modes of communication are used and voice communication is one of those categories. From the beginning of technological advancement, many processes have been used for the voice communication purpose and among those, Laser Voice Transmission Process is much more useful because of wireless connectivity and free from disadvantage of radio frequency transmission. Long distance high cost Laser voice transmission system is not economic for the purpose of ordinary communication. This paper deals with the designing of a very low cost voice transmission system which is perfect for information transmission of general conversation in Bangladesh, using an ordinary available LDR and Laser torch of cost BDT 727. This is almost 86% cheaper than the lowest cost voice transmission system available in this country.

Index Terms—laser torch, voice transmission, low cost design

Cite: Md. Kayesar Ahmmed, Anmona Shabnam Pranti, and Arif Md. Shahed Iqubal, "Low Cost Voice Communication Device Design Using Ordinary Laser Torch and LDR Available in Bangladesh," International Journal of Electronics and Electrical Engineering, Vol. 1, No. 4, pp. 223-229, December 2013. doi: 10.12720/ijeee.1.4.223-229
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