This experiment tested the advantage of binaural presentation of an interfering noise in a task involving identification of monaurally-presented words. These words were embedded in three types of noise: a stationary noise, a speech-modulated noise and a speech-babble noise, in order to assess energetic and informational masking contributions to binaural unmasking. Our results showed important i...

A series of experiments explored the role of structural information in the auditory recognition process, within the context of a backward recognition masking paradigm. A masking tone presented after a tl!st tone has been found to interfere with the perceptual processing of the test tone, the degree of interference decreasing with increased durations of the silent intertone interval between the ...

228 words; limited 250) 19 Forward masking is traditionally measured with a detection task in which the addition of 20 a preceding masking sound results in an increased signal-detection threshold. Little is known 21 about the influence of forward masking on localization of free-field sound for human or animal 22 subjects. Here we recorded gaze shifts of two head-unrestrained cats during localiz...

Several studies demonstrate that in complex auditory scenes, speech recognition is improved when the competing background and target speech differ linguistically. However, such studies typically utilize spatially co-located speech sources which may not fully capture typical listening conditions. Furthermore, co-located presentation may overestimate the observed benefit of linguistic dissimilari...

This paper presents a method to suppress the bias artifact, also known as RF-inhomogeneity, in Magnetic Resonance Imaging (MRI). This artifact produces illumination variations due to magnetic field fluctuations of the device. In the latest years many works have been devoted to face this problem. In this work we present the 3D version of a new approach to bias correction, which is called Exponen...

In this paper, we present an Unsharp Masking-based approach for edge enhancing for TV application. The proposed scheme enhances the true details, limits the overshoot near sharp edges and attenuates the temporal artifacts which are visible in an image sequence. Simulations show that the processed sequence presents sharp edges which make it more pleasant to the human eye. Moreover, the amount of...

Loftus, Johnson, and Shimamura (1975) displayed a test stimulus (a picture) followed by a masking stimulus either immediately or after a 300-ms delay. They attributed the superior performance obtained with the delayed mask to the continued availability of a visible icon. Here I suggest that Loftus et al.'s explanation is questionable on empirical and on conceptual grounds. Instead, I propose an...

This paper addresses a previous claim (Brysbaert & Praet, 1992) that the use of prelexical phonology in visual word recognition is optional in the Dutch language. One backward masking experiment and two masked priming experiments are reported. The experimental task was perceptual identification. Pseudohomophones, graphemic controls, and unrelated controls of the target words were used as masks ...

This paper discusses perceptual coding of narrowband audio signals at low rates. In particular, it proposes a new error measure which shapes the noise inside the critical bands, a window switching criterion based on the temporal masking effect of the hearing system, a more accurate model of the simultaneous masking effect of the hearing system, perceptually-based bit allocation algorithms based...