Development of ambient noise reduction android application for voice calls using equalization of audio frequency

• Main Authors: Magno, Anthony Eudes M., Nagpala, John Lemuell U.
• Format: text
• Language: English
• Published: Animo Repository 2013
• Subjects: Noise control; Industrial noise; Android (Electronic resource); Application software > Development; Sound > Recording and reproducing.; Electrical and Electronics; Engineering
• Online Access: https://animorepository.dlsu.edu.ph/etd_bachelors/11192
• Institution: De La Salle University

Noise Reduction now plays a major role in any form of communication since noise reduce the quality of information in data. Noise reduction technologies give the users ease in understanding the information and comfort since noise reduction also minimizes loud unwanted sound. The researchers maximized this opportunity to address the problems regarding mobile phone communication particularly on phone calls and contributes to the already existing body of knowledge that addresses such concerns. This thesis paper is about how the researchers designed an android application to capture live phone calls and minimize the noise frequencies. The researchers used equalization to reduce the gain of noise frequencies and amplify the voice frequency range so that the voice frequency will over power the noise frequency. With the use of MatLab and Audacity, the researchers was able to analyze the data. Through the researchers' experiment and analysis it can be concluded that the scheme is indeed possible although it still needs major improvements over the speed and ram size of the phone's hardware, the system is till functional and is capable of reducing noise in active phone calls.