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This paper proposes a new feature extraction scheme for speaker-independent Speech Emotion Recognition under both unsupervised and supervised conditions following a non-hierarchical process first and then a hierarchical one. The feature is derived from the Teager energy operated wavelet coefficients of speech signal. The wavelet coefficients enhanced by TE operation is used to compute entropy thus...
In this paper, a copy-move image forgery detection scheme is developed based on a block matching algorithm. Instead of considering spatial blocks, 2D-DWT is performed on the forged image and then DWT domain blocks are considered, where only approximate DWT coefficients are utilized. In order to reduce the computational burden, unlike conventional approaches, instead of performing block matching operation...
This paper presents a speaker-independent speech emotion recognition method, where emotional features are derived from the Teager energy (TE) operated wavelet coefficients of speech signal. Due to TE operation, the enhanced detail as well as approximate Wavelet coefficients thus obtained is then used to compute entropy. Entropy values of TE operated detail and approximate wavelet coefficients not...
This paper represents a non-hierarchical speech Emotion Recognition method, where the speaker-independent emotional features are extracted from the Teager energy (TE) operated wavelet coefficients of speech signal. The detail as well as approximate Wavelet coefficients enhanced by TE operation is used to determine entropy. Entropy values of TE operated detail and approximate wavelet coefficients downsize...
In this paper, a speech enhancement method based on noise compensation performed on short time magnitude spectra is presented following the geometric approach. Here the noise estimate to be subtracted from the noisy speech spectrum is proposed to be determined by exploiting the low frequency regions of noisy speech of the current frame rather than depending only on the initial silence frames. We argue...
In this paper, a noisy speech enhancement method based on noise compensation performed on short time phase spectrum is presented. Here the noise estimate to be used to modify the noisy speech phase spectrum is proposed to be determined by exploiting the low frequency regions of noisy speech of current frame rather than depending only on the initial silence frames. We argue that this approach of noise...
This paper presents a hierarchical Speech Emotion Recognition method, where the speaker-independent emotional features are derived from the Teager energy (TE) operated wavelet coefficients of speech signal. The detail as well as approximate Wavelet coefficients enhanced by TE operation is used to compute entropy. Entropy values of TE operated detail and approximate wavelet coefficients reduce feature...
This paper presents an approach to detect voice disorders based on wavelet and prosody-related voice properties. First, several statistical measures of the normalized energy contents of the Discrete Wavelet Transform (DWT) coefficients over all voice frames are determined. Then, similar statistical measures of some prosody-related voice properties, such as mean pitch, jitter and shimmer are also computed...
Digital watermarking is the newfangled idea in digital media. As the replication and modification of digital media content is done frequently and without any significant obstruction, secrecy and authenticity become vulnerable to attacks. In the information hiding community digital watermarking has achieved immense popularity due to its righteous stronghold against piracy and non-repudiation. Many...
In this paper, a GSM based cellular communication scheme with encompassing security is proposed for electronic banking. In order to demonstrate the detailed steps of the scheme in a quick but convenient manner, Warnier-Orr representation of the proposed protocols is used. The proposed SMS based mobile banking scheme provides opportunity to every client of a financial institution to use modern facilities...
Cashless electronic transaction is getting immense popularity nowadays due to its procedural and bureaucratic simplicity. Almost each and every organization and financial institutes prefers electronic transaction in lieu of pen-paper based banking approach, which depends on high speed internet technology. However, this online monetary transaction is a long cherished blessing for the developed countries...
Nowadays internet-based banking is getting popularity because of its several advantages, such as ease of operation and virtual monetary activities, i.e., client's physical presence at different bank locations is no more required. However, because of scarcity of accessibility at different locations, cost, and slow speed, number of people using internet communication is a small percentage of the mobile...
Theme of E-Governance admits agile and ameliorated citizen service from a quantitative and qualitative point of view. An efficacious e-Governance system ascertains completion of administrative tasks in a nimble way reducing bureaucracy through a transparent protocol being robust against corruption. With the increased utilization and adaptation of the information and communication technologies (ICT),...
Banking service is a part and parcel in the reformist human society. Due to the proliferation of communication technology, instead of conventional paper based banking system, sms-banking and m-banking are getting immense popularity. However, regardless of nature of transactions, maintaining security is a major concern in this sector. In this paper, a short message service (SMS) based m-banking protocol...
Of all the panoramas of nuclear power in the world, none is so disputatious or as pivotal as the issue of nuclear waste and its management. While there is no contiguous reason for alarm, an immense amount of amelioration is needed if the worlds custody of its radioactive waste is to become a programmed and prosecuted success. Disposal of waste can highly jeopardize the atmosphere and environment....
A crucial yard mensuration of the shape up of a state is the level to which clean, low-priced and sustainable energy resources are made available for the bulk assemblage. At present eons, equating cost factors, environmental issues, power generation with other substitute energy informants, atomic or nuclear power is turning into a popular alternative as an energy option. Though it is clean and safe...
An effective method for pitch estimation from severely noise-corrupted speech is presented in this paper. We argue that an accurate estimate of a pitch-harmonic (PH) can be obtained from the Discrete Cosine Transform (DCT) power spectrum of an enhanced frame. By exploiting the PH thus extracted, a spectral matching method is developed in the DCT domain to determine the true harmonic number associated...
A new method based on temporal matching is presented in this paper for pitch determination from noisy speech signals. At first, a variable-length average magnitude sum function (VLAMSF) that exhibits a periodicity similar to the pitch period of the voiced speech, has been proposed. We argue that the discrete cosine transform (DCT) power spectrum of the VLAMSF is capable of revealing an estimate of...
A new pitch extractor based on spectral and temporal enhancement of noisy speech signals is presented in this paper. A discrete cosine transform based modified power spectral subtraction scheme is developed and employed prior to pitch extraction in order to suppress the underlying non-stationary noise. The de-noised speech thus obtained is then passed through an inverse filter, whose parameters are...
A new method for pitch estimation from noisy speech signals based on a pitch-harmonic extraction is presented in this paper. At first, a variable-length average magnitude difference function (VLAMDF) that is able to alleviate the adverse effects of intrinsic falling minima of the conventional AMDF, has been proposed. We argue that the fast Fourier transform (FFT) power spectrum of the VLAMDF is capable...
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