Supervised and unsupervised speech enhancement using nonnegative matrix factorization

N Mohammadiha, P Smaragdis… - IEEE Transactions on …, 2013 - ieeexplore.ieee.org
Reducing the interference noise in a monaural noisy speech signal has been a challenging
task for many years. Compared to traditional unsupervised speech enhancement methods …

Decorrelation of neutral vector variables: Theory and applications

Z Ma, JH Xue, A Leijon, ZH Tan… - IEEE transactions on …, 2016 - ieeexplore.ieee.org
In this paper, we propose novel strategies for neutral vector variable decorrelation. Two
fundamental invertible transformations, namely, serial nonlinear transformation and parallel …

Speech enhancement under low SNR conditions via noise estimation using sparse and low-rank NMF with Kullback–Leibler divergence

M Sun, Y Li, JF Gemmeke… - IEEE/ACM Transactions on …, 2015 - ieeexplore.ieee.org
A key stage in speech enhancement is noise estimation which usually requires prior models
for speech or noise or both. However, prior models can sometimes be difficult to obtain. In …

Unseen noise estimation using separable deep auto encoder for speech enhancement

M Sun, X Zhang, TF Zheng - IEEE/ACM Transactions on …, 2015 - ieeexplore.ieee.org
Unseen noise estimation is a key yet challenging step to make a speech enhancement
algorithm work in adverse environments. At worst, the only prior knowledge we know about …

Speech enhancement based on full-sentence correlation and clean speech recognition

J Ming, D Crookes - IEEE/ACM Transactions on Audio, Speech …, 2017 - ieeexplore.ieee.org
Conventional speech enhancement methods, based on frame, multiframe, or segment
estimation, require knowledge about the noise. This paper presents a new method that aims …

On the importance of super-Gaussian speech priors for machine-learning based speech enhancement

R Rehr, T Gerkmann - IEEE/ACM Transactions on Audio …, 2017 - ieeexplore.ieee.org
For enhancing noisy signals, machine-learning based single-channel speech enhancement
schemes exploit prior knowledge about typical speech spectral structures. To ensure a good …

Nonnegative HMM for babble noise derived from speech HMM: Application to speech enhancement

N Mohammadiha, A Leijon - IEEE Transactions on audio …, 2013 - ieeexplore.ieee.org
Deriving a good model for multitalker babble noise can facilitate different speech processing
algorithms, eg, noise reduction, to reduce the so-called cocktail party difficulty. In the …

Speech enhancement using maximum a-posteriori and gaussian mixture models for speech and noise periodogram estimation

S Chehrehsa, TJ Moir - Computer Speech & Language, 2016 - Elsevier
Abstract In speech enhancement, Gaussian Mixture Models (GMMs) can be used to model
the Probability Density Function (PDF) of the Periodograms of speech and different noise …

Spectral dynamics recovery for enhanced speech intelligibility in noise

PN Petkov, WB Kleijn - IEEE/ACM Transactions on Audio …, 2014 - ieeexplore.ieee.org
Speech intelligibility in noisy environments decreases with an increase in the noise power.
We hypothesize that the differences of subsequent short-term spectra of speech, which we …

Enhancement of cleft palate speech using temporal and spectral processing

PN Sudro, SRM Prasanna - Speech Communication, 2020 - Elsevier
The speech of the individuals with cleft palate (CP) is generally characterized by the
presence of abnormal nasal resonances during the production of voiced sounds, primarily in …