NOISE REDUCTION IN SPEECH ENHANCEMENT BY SPECTRAL SUBTRACTIO

NOISE REDUCTION IN SPEECH ENHANCEMENT BY SPECTRAL SUBTRACTION WITH SCALAR KALMAN FILTER

... UNIVERSITY, HANOI UNIVERSITY OF ENGINEERING AND TECHNOLOGY Đặng Minh Công NOISE REDUCTION IN SPEECH ENHANCEMENT BY SPECTRAL SUBTRACTION WITH SCALAR KALMAN FILTER Major:Computer Science Supervisor:Assoc ... Page 26 of 113 Chapter NOISE REDUCTION BY SPECTRAL SUBTRACTION WITH SCALAR KALMAN FILTER 3.1 Spectral Subtraction The method presented in thi...

Ngày tải lên : 25/03/2017, 21:28

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Báo cáo toán học: " Transient noise reduction in speech signal with a modified long-term predictor" ppt

... noisy speech Time-domain waveforms of (a) : Noise signal, (b): Residual signal after STP analysis, and (c): Residual signal after LTP analysis Table NCC between transient noise and residual signals ... residual signals after the STP analysis and the LTP analysis The input signal of the analysis contains both speech and transient noise to show the influence of the speech...

Ngày tải lên : 20/06/2014, 21:20

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Báo cáo hóa học: " Speech Enhancement by Multichannel Crosstalk Resistant ANC and Improved Spectrum Subtraction" pptx

... of a short speech segment from Figure (noisy speech) : (a) noisy speech segment; (b) enhanced speech by twochannel CRANC; (c) enhanced speech by MCRANC; (d) enhanced speech by MCRANC and ISS the ... (a) noisy speech; (b) enhanced speech by ISS; (c) enhanced speech by MCRANC; (d) enhanced speech by MCRANC and ISS ACKNOWLEDGMENTS This research is funded by Th...

Ngày tải lên : 22/06/2014, 23:20

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Báo cáo hóa học: " Suitability of bilateral filtering for edge-preserving noise reduction in PET" pdf

... Conclusion Bilateral filtering exhibits superior properties in comparison to the smoothing filters routinely applied for noise reduction in PET Bilateral filtering allows to increase the SNR of PET ... necessity for improvement of the SNR, our results indicate that bilateral filtering is a superior alternative to the standard smoothing filters Evaluation of the p...

Ngày tải lên : 20/06/2014, 23:20

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báo cáo hóa học:" Research Article Robust Distributed Noise Reduction in Hearing Aids with External Acoustic Sensor Nodes" ppt

... achieved using external acoustic sensor nodes is given In Section 4, the DANSE algorithm is reviewed in the context of noise reduction A modiﬁcation to DANSE increasing robustness is introduced in Section ... applying DANSEK in cooperative acoustic sensor networks for distributed noise reduction applications, such as in hearing aids A more robust version of...

Ngày tải lên : 21/06/2014, 20:20

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Báo cáo hóa học: " Research Article Subspace-Based Noise Reduction for Speech Signals via Diagonal and Triangular Matrix Decompositions: Survey and Analysis" docx

... using SVD- and ULV-based MV estimates (a) Clean and noisy signals; (b) and (c) estimates; both SNRs are 12.5 dB for k = and 13.8 dB for k = 16 The Matlab code for MV case takes the form [U,V,X,Gamma,Delta] ... clean signal and the GSVD-based MV estimate for k = 15 P C Hansen and S H Jensen 13 where Γ and Δ are p × p and diagonal, and Io is the identity matrix of...

Ngày tải lên : 22/06/2014, 19:20

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Báo cáo hóa học: " Dual-Channel Speech Enhancement by Superdirective Beamforming" doc

... plots the performance of the superdirective binaural input-output beamformer in terms of speech intelligibility-weighted gain for a desired speech source from 0◦ and speech interferers from variable ... −20 20 40 Angle of interfering speech θS2 60 80 Superdirective BF with postﬁlter Superdirective BF Figure 18: Intelligibility-weighted gain according to (35) of superdirective...

Ngày tải lên : 22/06/2014, 23:20

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Báo cáo hóa học: " Speckle Reduction and Structure Enhancement by Multichannel Median Boosted Anisotropic Diffusion" pptx

... notation MGAD to represent the median boosted (or guided) and median regularized anisotropic diffusion and DMAD to represent the decimated median boosted and median regularized anisotropic diffusion Visually, ... Figure 5, it can be Speckle Reduction by Multichannel Anisotropic Diffusion seen that the proposed technique delineates the structures of the image bette...

Ngày tải lên : 23/06/2014, 01:20

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Báo cáo hóa học: " Multichannel Direction-Independent Speech Enhancement Using Spectral Amplitude Estimation Thomas Lotter" pdf

... of the phase, estimation of the speech spectral amplitude instead of the complex spectrum is more suitable from a perceptual point of view [15] Multichannel Spectral Amplitude Estimation 1149 ... conﬂuent hypergeometric series is stored in a table Multichannel Spectral Amplitude Estimation 1151 102 3.2 Estimation conditioned on spectral amplitudes The assumption αi...

Ngày tải lên : 23/06/2014, 01:20

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Báo cáo sinh học: "Reduction of inbreeding in commercial females by rotational mating with several sire lines" ppsx

... Inbreeding under rotational mating 519 Table II Asymptotic inbreeding coeﬃcients (%) of commercial females with n unrelated sire lines and related sire lines With related sire lines, inbreeding ... Ft−n Inbreeding under rotational mating 513 Figure Rotational mating with n sire lines for t ≥ n + The commercial females are rotationally mated with s...

Ngày tải lên : 14/08/2014, 13:22

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Báo cáo hóa học: " Research Article The Effect of a Voice Activity Detector on the Speech Enhancement Performance of the Binaural Multichannel Wiener Filter" ppt

... with attack and release time constants τraise and τdecay The diﬀerences between the maxima and minima are calculated to obtain the current dynamic range of the signal (4) The decision for a speech ... vectors containing speech samples will be added to the noise data matrix in (5), which leads to cancellation of parts of the speech signal On the other hand, if t...

Ngày tải lên : 21/06/2014, 08:20

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Báo cáo y học: "Early reduction in painful physical symptoms is associated with improvements in long-term depression outcomes in patients treated with duloxetine" pdf

... al.: Early reduction in painful physical symptoms is associated with improvements in long-term depression outcomes in patients treated with duloxetine BMC Psychiatry 2011 11:150 Submit your next ... of depressive symptomatology The main finding of our study is that early change in pain severity was strongly associated with a long-term reduction of...

Ngày tải lên : 11/08/2014, 15:22

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Tài liệu Báo cáo Y học: Enhancement by a-tocopheryl hemisuccinate of nitric oxide production induced by lypopolysaccharide and interferon-c through the upregulation of protein kinase C in rat vascular smooth muscle cells docx

... well as NO production Accordingly, we concluded that the enhancing effect of TS on LPS/IFN -induced NO production is caused by enhancement of iNOS protein induction Effects of a-T and its derivatives ... amphiphilic structure of the polar carboxyl moiety and the hydrophobic isoprene moiety The enhancing effect of TS on LPS/IFN -induced NO production was inh...

Ngày tải lên : 22/02/2014, 04:20

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Báo cáo hóa học: " Reversal of TMS-induced motor twitch by training is associated with a reduction in excitability of the antagonist muscle" ppt

... Giacobbe et al.: Reversal of TMS-induced motor twitch by training is associated with a reduction in excitability of the antagonist muscle Journal of NeuroEngineering and Rehabilitation 2011 8:46 ... collected from the antagonist muscle at rest; (a) pre training and (b) immediately post training (t1), showing decreased amplitude following minutes of...

Ngày tải lên : 19/06/2014, 08:20

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