| Cepstral analysis |
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| The source filter model of speech production decomposes the speech signal, tinto an excitation, tex2html_wrap_inline2963, and a linear filter, tex2html_wrap_inline2889. In the frequency domain: |
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| Voice-Over-Internet Protocol |
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| Voice over Internet Protocol (VoIP), is a technology that allows you to make voice calls using a broadband Internet connection instead of a regular (or analog) phone line. |
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| Vector Quantized |
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| In this paper we are proposing K-means algorithm for optimization of codebook. In general K-means is an optimization
algorithm but this algorithm takes very long time to converge. We are using existing codebook so that the convergence time for
K-means is reduced considerably |
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| Time-Domain Methods for Speech Processing |
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| illustrates the speech production model universally used in speech signal processing. |
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| Introduction To Speech Processing |
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| Time domain processing :direct operations on the speech waveform, Frequency domain processing:
direct operations on a spectral representation of the signal |
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| Short-Time Fourier Analysis |
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| In an effort to correct this deficiency, Dennis Gabor (1946) adapted the Fourier transform to analyze only a small
section of the signal at a time -- a technique called windowing the signal. |
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| Pitch-Scale Modification |
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| The speech pitch-scale modification that can change the tone and the prosody is useful in the applications of privacy protection and entertainment.
The analysis-synthesis method is one of the approaches for pitch-scale modification. |
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| Pitch Period |
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| Wavelet transform-based pitch period estimation is well known in the literature. This approach to pitch estimation assumes that
the glottis closures are correlated with the maxima in the adjacent scales of the wavelet transform and for pitch period estimation,
one needs to detect these correlated maxima across these scales, which is often prone to error especially in the case of
noisy signals. |
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| Overview Of Speech Mechanics |
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| The easiest way to master something is to become familiar with it. The images below depict the parts of the speech mechanism that we all use everyday but may not know how or why we do so. |
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| Linear Prediction Algorithms |
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| Estimating a variable given some other variables, is one of the most commonly occuring problems in real life. More speci cally, estimation
or prediction is one of the most celebrated problems in time series analysis. |
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| Linear Prediction |
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| Introduce the theory of linear prediction, Develop autocorrelation and covariance techniques for solution, Understand similarities with regression
Explain the relationship to windowing and maximum entropy, Add a new technique to our signal modeling block diagram |
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| Clustering And vector Quantization |
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| Provides routines for k-means clustering, generating code books from k-means models, and quantizing vectors by comparing them with centroids in a code book |
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| Phonetics |
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| Physiological mechanism of speech production,The physical properties of sound waves etc.., |
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| Formant Extraction |
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| This paper presents an approach based on the properties of group delay functions for extracting formants from
speech signals. The algorithm is similar to the cepstral smoothing approach for formant extraction using homomorphic
deconvolution. |
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| Introduction to Phonetics |
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| Articulatory phonetics,study of the physiological mechanisms of speech production
Acoustic phonetics, study of the physical properties of sound waves produced when we speak
Auditory phonetics, study of the percepttion off sound, as mediated by the ear, auditory nerve, and brain |
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| Delta Modulation |
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| Delta modulation is a simplified version of the simple DPCM |
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| Cholesky Method |
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| A standard method for solving the symmetric definite generalized eigenvalue problem
Ax = ?Bx, where A is symmetric and B is symmetric positive definite, is to compute a Cholesky
factorization |
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| Cepstral Analysis Techniques for Speech Recognition |
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| Homomorphic Deconvolution, The Real Cepstrum,The Short Term Cepstrum, Cepstral Pitch Determination
The Complex Cepstrum |
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| Automatic Speech Recognition |
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| Designing a machine that mimics human behavior, particularly the capability of speaking
naturally and responding properly to spoken language, has intrigued engineers and scientists for
centuries. Since the 1930s, when Homer Dudley of Bell Laboratories proposed a system model
for speech analysis and synthesis |
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| Auditory Perception |
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| Motivation: Why & how, Auditory physiology, Psychophysics, Detection & discrimination, Pitch perception
Speech perception, Auditory organization & Scene analysis |
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