On Optimal Multichannel Mean-Squared Error Estimators for Speech Enhancement

Autor: Jesper Jensen, Richard Heusdens, Richard C. Hendriks, Ulrik Kjems

Publikováno v: IEEE Signal Procesing Letters, 16 (10), 2009

In this letter we present discrete Fourier transform (DFT) domain minimum mean-squared error (MMSE) estimators for multichannel noise reduction. The estimators are derived assuming that the clean speech magnitude DFT coefficients are generalized-Gamm

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ad56539946773d2a2bd92ef7bae2c98a
https://doi.org/10.1109/lsp.2009.2026205

Error-correction of binary masks using hidden Markov models

Autor: Mads Græsbøll Christensen, Ulrik Kjems, Jesper B. Boldt, Søren Holdt Jensen, Michael Syskind Pedersen

Publikováno v: ICASSP
Boldt, J, Pedersen, M S, Kjems, U, Christensen, M G & Jensen, S H 2010, ' Error-Correction of Binary Masks using Hidden Markov Models ', I E E E International Conference on Acoustics, Speech and Signal Processing. Proceedings, s. 4722-4725 . https://doi.org/10.1109/ICASSP.2010.5495182

Binary masking is a simple and efficient method for source separation, and a high increase in intelligibility can be obtained by applying the target binary mask to noisy speech. The target binary mask can only be calculated under ideal conditions and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b7220c2e85fffa20bda29693a123179d
https://doi.org/10.1109/icassp.2010.5495182

Low Complexity DFT-Domain Noise PSD Tracking Using High-Resolution Periodograms

Autor: Richard C. Hendriks, Ulrik Kjems, Richard Heusdens, Jesper Jensen

Publikováno v: EURASIP Journal on Advances in Signal Processing, Volume 2009 (2009), Article ID 925870, 16 pages
EURASIP Journal on Advances in Signal Processing, Vol 2009 (2009)

Although most noise reduction algorithms are critically dependent on the noise power spectral density (PSD), most procedures for noise PSD estimation fail to obtain good estimates in nonstationary noise conditions. Recently, a DFT-subspace-based meth

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1e911d087467944b0c0359b22ed251b9
http://resolver.tudelft.nl/uuid:f090be7c-69ff-44e6-94cf-6d6e473d4c0a

Role of mask pattern in intelligibility of ideal binary-masked noisy speech

Autor: Thomas Lunner, Jesper B. Boldt, Ulrik Kjems, DeLiang Wang, Michael Syskind Pedersen

Publikováno v: Kjems, U, Boldt, J, Pedersen, M, Lunner, T & Wang, D 2009, ' Role of mask pattern in intelligibility of ideal binary-masked noisy speech ', Journal of the Acoustical Society of America, vol. 126, no. 3, pp. 1415-1426 . https://doi.org/10.1121/1.3179673

Intelligibility of ideal binary masked noisy speech was measured on a group of normal hearing individuals across mixture signal to noise ratio (SNR) levels, masker types, and local criteria for forming the binary mask. The binary mask is computed fro

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a882114401e750cf5a9a11dbe116db34
https://vbn.aau.dk/da/publications/697a3029-29d3-4afb-bdfc-8139b6a33b08

System And Method For Determining Directionality Of Sound Detected By A Hearing Aid

Autor: Michael Syskind Pedersen, Ulrik Kjems

Publikováno v: The Journal of the Acoustical Society of America. 129:4096

This invention relates to a system (200) for determining directionality of a sound. The system (200) comprises a first audio device (202) placed on one side of a user's head (100) and having a first microphone unit (110, 112) for converting said soun

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::17c7589995317296c135ee3dd2a3c30c
https://doi.org/10.1121/1.3600954