A Study on Performance Analysis of Tamil Speech Enhancement using Spectral Subtraction and Adaptive Techniques
نویسندگان
چکیده
Speech is produced when air from the lungs passes through the throat, the vocal cords, the mouth and the nasal tract. Speech processing is the study of the speech signals and the processing methods of these signals. Speech enhancement is a technique used to reduce the background noise present in the speech signal. It simply means the improvement in intelligibility and quality of degraded speech. The need to enhance speech signal arises in
منابع مشابه
Speech Enhancement by Modified Convex Combination of Fractional Adaptive Filtering
This paper presents new adaptive filtering techniques used in speech enhancement system. Adaptive filtering schemes are subjected to different trade-offs regarding their steady-state misadjustment, speed of convergence, and tracking performance. Fractional Least-Mean-Square (FLMS) is a new adaptive algorithm which has better performance than the conventional LMS algorithm. Normalization of LMS ...
متن کاملNoise reduction based on adaptive β-order generalized spectral subtraction for speech enhancement
Though spectral subtraction has widely been used for speech enhancement, the spectral order β set in spectral subtraction is generally fixed to some constants, resulting in the performance limitation to a certain degree. In this paper, we first analyze the performance of the β-order generalized spectral subtraction in terms of the gain function to highlight its dependence on the value of spectr...
متن کاملA Modified Speech Enhancement Using Adaptive Gain Equalizer with Non linear Spectral Subtraction for Robust Speech Recognition
In this paper we present an enhanced noise reduction method for robust speech recognition using Adaptive Gain Equalizer with Non linear Spectral Subtraction. In Adaptive Gain Equalizer method (AGE), the input signal is divided into a number of subbands that are individually weighed in time domain, in accordance to the short time Signal-to-Noise Ratio (SNR) in each subband estimation at every ti...
متن کاملPerformance Comparison of Single Channel Speech Enhancement Techniques for Personal Communication
Speech has been embedded into many applications like speech recognition, development of hearing aid, VoIP, mobile and other forms of personal communication. Speech enhancement techniques have been widely used for minimizing undesirable background noises. This paper deals with single channel speech enhancement techniques based on Spectral Subtraction (SS), Wavelet Transform (WT) and Adaptive Wie...
متن کاملTime and Frequency Domain Analysis of Subband Spectral Subtraction Method of Speech Enhancement Using Adaptive Noise Estimation Algorithm
The speech processing systems used to communicate or store speech are usually designed for a noise free environment. But the presence of background interference in the form of additive background and channel noise drastically degrades the performance of these systems, causing inaccurate information exchange and listener fatigue. To obtain a more intelligible speech signal, and one that is more ...
متن کامل