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

Date of Publication

2013

Document Type

Bachelor's Thesis

Degree Name

Bachelor of Science in Electronics Engineering

Subject Categories

Electrical and Electronics

College

Gokongwei College of Engineering

Department/Unit

Electronics and Communications Engineering

Thesis Adviser

Roy Francis Navea

Defense Panel Chair

Voltaire Dupo

Defense Panel Member

Alexander Abad
Enrique Manzano

Abstract/Summary

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.

Abstract Format

html

Language

English

Format

Print

Accession Number

TU18396

Shelf Location

Archives, The Learning Commons, 12F, Henry Sy Sr. Hall

Physical Description

xi, 230, 35 unnumbered leaves, illustrations (some color), 28 cm.

Keywords

Noise control; Noise control—Software

Embargo Period

4-26-2021

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