Single channel speech enhancement techniques for removal of additive noise
Nainesh B Patel, Hardik N Patel · IOSR Journal of Electronics and Communication Engineering · 2014
In addition to the known applications of voice communication , cell phones , hands-free voice recording , automatic speech recognition , interactive voice response systems , man-machine interface , requires at least a microphone and signals are usually corrupted by noise reverberation and background noise .So , the voice signal must be " clean " by digital signal processing tool to be played before storage or transmission .This article describes an speech enhancement technology for single voice channel.Various strategies have been proposed and are described from human to simulate and compare the past in this article .But there are still some obstacles to overcome these methods .Therefore, the aim is to modify or in combination with a single voice channel from the real world , a significant noise, such as airports , cars , restaurants , train stations and other inhibiting characteristics of different algorithms voices improvement efforts improvisation to outperform traditional methods , because the failure is made to develop a new algorithm.The algorithm is based on simulation of objective and subjective evaluation.