Filters








7,821 Hits in 3.6 sec

Processing of reverberant speech for time-delay estimation

B. Yegnanarayana, S.R.M. Prasanna, R. Duraiswami, D. Zotkin
2005 IEEE Transactions on Speech and Audio Processing  
For time-delay estimation, speech signals are normally processed using short-time spectral information (either magnitude or phase or both).  ...  Time-delay estimation from microphone outputs is the first step for many sound localization algorithms, and also for enhancement of speech.  ...  These involve a two-step process: 1) Obtaining the time-delay estimation of the speech signals corresponding to a pair of spatially separated microphones and 2) using the estimated delays and knowledge  ... 
doi:10.1109/tsa.2005.853005 fatcat:mzwmpnrvojh6bga4jceqn6qtua

Low Delay Noise Reduction and Dereverberation for Hearing Aids

Heinrich W. Löllmann (EURASIP Member), Peter Vary
2009 EURASIP Journal on Advances in Signal Processing  
The calculation of the spectral variances of the late reverberant speech requires an estimate of the reverberation time (RT) which is accomplished by a maximum likelihood (ML) approach.  ...  A new system for single-channel speech enhancement is proposed which achieves a joint suppression of late reverberant speech and background noise with a low signal delay and low computational complexity  ...  They would also like to thank the reviewers for their helpful comments as well as the Institute of Technical Acoustics of RWTH Aachen University for providing the measured RIRs.  ... 
doi:10.1155/2009/437807 fatcat:j3kq65gccrc37dfrz43dudvl2y

A blind speech enhancement algorithm for the suppression of late reverberation and noise

Heinrich W. Lollmann, Peter Vary
2009 2009 IEEE International Conference on Acoustics, Speech and Signal Processing  
A generalized spectral weighting rule based on estimations for the spectral variances of the late reverberant speech and background noise is used for speech enhancement.  ...  This paper proposes a new speech enhancement algorithm for the suppression of background noise and late reverberation without a priori knowledge.  ...  To avoid this, we estimate the decay rate in the time-domain at decimated time instants λ = k/R out of the partly denoised, reverberant speech signalẑ(k) as sketched by Fig. 1 .  ... 
doi:10.1109/icassp.2009.4960502 dblp:conf/icassp/LollmannV09a fatcat:oqxnv3b7efhclg52hvt42mz5qa

A Practical Multichannel Dereverberation Algorithm using Multichannel Dypsa and Spatiotemporal Averaging

Mark R. P. Thomas, Nikolay D. Gaubitch, Jon Gudnason, Patrick A. Naylor
2007 2007 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics  
This paper demonstrates the use of the Multichannel DYPSA algorithm to identify glottal closure instants (GCIs) from noisy, reverberant speech.  ...  In an office environment, for example, unwanted signals such as reverberation and background noise from computers and other talkers will degrade the quality of the received signal.  ...  Fig. 4 . 4 Reverberation and noise reduction of up to 5.0 dB and 0.33 Figure 4 : 4 BSD vs. distance for (a) reverberant, (b) DSB processed and (c) Spatiotemporal averaged speech. in reverberant speech  ... 
doi:10.1109/aspaa.2007.4392983 fatcat:grdbsnggcrgqja24eewv5p64ce

Dual-Microphone Speech Dereverberation using a Reference Signal

E.A.R. Habets, S. Gannot
2007 2007 IEEE International Conference on Acoustics, Speech and Signal Processing - ICASSP '07  
The power envelope of the reference signal and the power envelope of the output of the delay and sum beamformer are used to estimate the residual reverberation in the output of the delay and sum beamformer  ...  The proposed method only requires an estimate of the direction of arrival of the desired speech source.  ...  The authors express there thanks to Jimi Wen from the Imperial College London, United Kingdom, for making the code for the RDT measure available.  ... 
doi:10.1109/icassp.2007.367216 dblp:conf/icassp/HabetsG07 fatcat:tzolozmvwzgcbicttgded4mmuu

A two-stage algorithm for one-microphone reverberant speech enhancement

Mingyang Wu, DeLiang Wang
2006 IEEE Transactions on Audio, Speech, and Language Processing  
The proposed algorithm significantly improves the quality of reverberant speech.  ...  They correspond to two physical variables: signal-to-reverberant energy ratio (SRR) and reverberation time, respectively.  ...  ACKNOWLEDGMENT The authors would like to thank the anonymous reviewers for their useful suggestions.  ... 
doi:10.1109/tsa.2005.858066 fatcat:eyjj423sfneyfi3bnq22lvj7nq

Binaural extension and performance of single-channel spectral subtraction dereverberation algorithms

Alexandros Tsilfidis, Eleftheria Georganti, John Mourjopoulos
2011 2011 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)  
A binaural extension of such methods, apart from suppressing reverberation without introducing processing artifacts, should also preserve the signal's binaural localization cues.  ...  derived from a Delay and Sum Beamformer.  ...  Both in [4] and [5] , the phase of the reverberant speech is combined with the estimated clean signal's spectrum and overlap add is used to extract the time domain estimation.  ... 
doi:10.1109/icassp.2011.5946837 dblp:conf/icassp/TsilfidisGM11 fatcat:ku672c6fqnhabkbzoc5rjoqd44

Multichannel Dypsa For Estimation Of Glottal Closure Instants In Reverberant Speech

Mark Thomas, Nikolay Gaubitch, P.A Naylor
2007 Zenodo  
Publication in the conference proceedings of EUSIPCO, Poznan, Poland, 2007  ...  Identification accuracy vs. reverberation time for a) DYPSA on clean speech, b) DYPSA on reverberant speech, c) DSB-DYPSA on reverberant speech, d) MC-DYPSA on reverberant speech.  ...  Figure 5 :Figure 6 : 56 Detection rate vs. reverberation time for DYPSA on clean speech, DYPSA on reverberant speech, DSB-DYPSA on reverberant speech and MC-DYPSA on reverberant speech.  ... 
doi:10.5281/zenodo.40627 fatcat:mvstujqlsja7fl2z2qii2sh63m

Time Difference of Arrival Estimation Exploiting Multichannel Spatio-Temporal Prediction

Hongsen He, Lifu Wu, Jing Lu, Xiaojun Qiu, Jingdong Chen
2013 IEEE Transactions on Audio, Speech, and Language Processing  
This problem is often referred to as time delay estimation (TDE).  ...  Experimental results in reverberant and noisy environments demonstrate the advantages of this new method for TDE.  ...  His research interests include noise and vibration control, audio and speech signal processing. Lifu Wu was born in  ... 
doi:10.1109/tasl.2012.2223674 fatcat:hd3keqrjjvd5pmaszja32luory

Speaker localization using excitation source information in speech

V.C. Raykar, B. Yegnanarayana, S.R.M. Prasanna, R. Duraiswami
2005 IEEE Transactions on Speech and Audio Processing  
Methods for time-delay estimation generally use spectral features that correspond mostly to the shape of vocal tract during speech production.  ...  The first step in localization is the estimation of time-delay from speech collected by a pair of microphones.  ...  In this method, the signals received by several microphones are processed to estimate the time-delays between pairs of microphones.  ... 
doi:10.1109/tsa.2005.851907 fatcat:igcx4mlp3fhntomtdounqerb7m

Speech enhancement using excitation source information

B. Yegnanarayana, S. R. Mahadeva Prasanna, K. Sreenivasa Rao
2002 IEEE International Conference on Acoustics Speech and Signal Processing  
For coherent addition the time-delay between a pair of microphones is estimated using the knowledge of the source information present in the LP residual.  ...  This paper proposes an approach for processing speech from multiple microphones to enhance speech degraded by noise and reverberation.  ...  For coherent addition the time-delay of the signal between two microphones need to be estimated.  ... 
doi:10.1109/icassp.2002.5743774 dblp:conf/icassp/YegnanarayanaPR02 fatcat:3ldkdkhyszfdldj772amdgfbsu

Phase-Based Dual-Microphone Speech Enhancement Using A Prior Speech Model

Guangji Shi, Parham Aarabi, Hui Jiang
2007 IEEE Transactions on Audio, Speech, and Language Processing  
Furthermore, it improves the filter's robustness when there are errors in time delay estimation.  ...  While prior work utilizes a constant parameter for all SNRs, we present an SNR-adaptive filter parameter estimation algorithm that maximizes the likelihood of the enhanced speech features based on a prior  ...  time delay estimates.  ... 
doi:10.1109/tasl.2006.876870 fatcat:djtnc7dz4vazhismmzj2627fsi

A Non-Intrusive Quality and Intelligibility Measure of Reverberant and Dereverberated Speech

Tiago H. Falk, Chenxi Zheng, Wai-Yip Chan
2010 IEEE Transactions on Audio, Speech, and Language Processing  
intelligibility estimation of reverberant and dereverberated speech.  ...  A modulation spectral representation is investigated for non-intrusive quality and intelligibility measurement of reverberant and dereverberated speech.  ...  Eneman for providing the dereverberation algorithms and multichannel room impulse responses and Dr. J. Wen for making the MARDY and the multidimensional coloration databases available.  ... 
doi:10.1109/tasl.2010.2052247 fatcat:v6sjozjyxbd35jermkifhqzgty

Laplace Entropy and its Application to Time Delay Estimation for Speech Signals

Yiteng Huang, Jacob Benesty, Jingdong Chen
2007 2007 IEEE International Conference on Acoustics, Speech and Signal Processing - ICASSP '07  
Time delay estimation (TDE) is a basic technique for numerous applications where there is a need to localize and track a radiating source.  ...  It employs more sensors and takes advantage of their delay redundancy to improve the precision of the TDOA (time difference of arrival) estimate between the first two sensors.  ...  INTRODUCTION The aim of time delay estimation (TDE) is to measure the relative time difference of arrival (TDOA) among spatially separated sensors.  ... 
doi:10.1109/icassp.2007.366629 dblp:conf/icassp/HuangBC07 fatcat:fhip7mx47rhqdphtt23jmmkk6m

Reverberant speech enhancement using cepstral processing

D. Bees, M. Blostein, P. Kabal
1991 [Proceedings] ICASSP 91: 1991 International Conference on Acoustics, Speech, and Signal Processing  
An estimate of the room impulse response is built up, and a least squared error inverse filter is used to remove the estimated impulse response from the reverberant speech Reduction of reverberation with  ...  accurate cepstral computation An algorithm for speech dereverberation is presented which incorporates a new approach to the segmentation and wmdowing procedure for speech.  ...  From Figure 1 it can be seen that the only delay between the reverberant and the processed speech is this filtermg delay, making the algorithm potentially suitable for real-time operation.  ... 
doi:10.1109/icassp.1991.150504 dblp:conf/icassp/BeesBK91 fatcat:tx26z5vvizdkvbx2rl3psvhjaq
« Previous Showing results 1 — 15 out of 7,821 results