This paper presents a speech enhancement using a noise estimation based on the ratio of the noisy speech and its minimum (NSMR) for non-stationary noise environments. The noise estimator is a very simple but highly effective real time approach for single channel noise reduction. The enhanced speech is free of musical tones and reverberation artifacts and sounds very natural compared to methods ...

One demand for comfortable high quality hands-free video conferencing systems is the transmission of a spatial acoustical impression. Therefore a major task is the transmission of stereo speech signals from a noisy environment. The suppression of the noise components must not corrupt the stereo effect. In this context different single channel, multi-channel and hybrid speech enhancement systems...

A joint speech signal enhancement based on singular value decomposition filter after spectral subtraction (SSVD) is proposed in this paper. The residual noise after spectral subtraction, which results for audible musical noise, is reduced further by SVD filter. The matrix size in spectral domain can be reduced half, and larger step-length adopted by SVD filter in spectral domain leads to lower ...

Irrelevant sound consisting of bursts of broadband noise, in which centre frequency changes with each burst, markedly impaired short-term memory for order. In contrast, a sequence of irrelevant sound in which the same band-pass noise burst was repeated did not produce significant disruption. Serial recall for both visual-verbal (Experiment 1) and visual-spatial items (Experiment 2) was sensitiv...

In this paper we investigate the modulation domain as an alternative to the acoustic domain for speech enhancement. More specifically, we wish to determine how competitive the modulation domain is for spectral subtraction as compared to the acoustic domain. For this purpose, we extend the traditional analysis-modification-synthesis framework to include modulation domain processing. We then comp...

Musical obsessions are rare in both clinical practice and literature. A case is presented of a musical obsession which had the additional unique characteristics of acute onset, marked severity, and occurrence as an isolated symptom.

Background: auditory training improves the perception of complex acoustic signals as well as the perception of speech. Aim: to verify if auditory training, through the practice of music, has an influence on the ability to recognize speech in quiet and noisy situations. Method: participants of this study were 55 individuals, with no musical experience (non-musicians) and 45 professional musician...

A classification system that aims to recognize the presence of sounds from different sources is described. The type of audio signals considered are speech, music, noise and silence. Appropriate subband processing is applied for the characterization of each sound source. The algorithm operates in four steps to classify the contents of a given audio signal. The acoustical parameters and statistic...

INTRODUCTION Musicians have more robust and efficient neural responses in the cortical and sub-cortical regions, demonstrating that musical experience benefits the processing of both non-linguistic and linguistic stimuli. OBJECTIVE This study aimed to verify P300's latency and amplitude behavioral using contralateral stimulation in musicians and non-musicians. METHODS This was a case-contro...