Emotions are experienced both in real and virtual environments (VEs). Most research to date have focused on the content that causes emotional reactions, but noncontent features of a VE (such as the realism and quality of object rendering) may also influence emotional reactions to the mediated object. The present research studied how noncontent features (different reverberation times) of an audi...

Spoofing detection for automatic speaker verification (ASV), which is to discriminate between live and artificial speech, has received increasing attentions recently. However, the previous studies have been done on the clean data without significant noise. It is still not clear whether the spoofing detectors trained on clean speech can generalise well under noisy conditions. In this work, we pe...

In this article, the plate reverberation unit is studied. This effect unit has been intensively used in recording studios since the late 50's. From a mechanics point of view, this plate can be modeled by means of the Kirchhoff equations of motion of a thin linear plate. This basic model allows us to understand the common points and differences between the natural acoustic reverberation and the ...

In a spatial auditory display, reverberation provides a reliable cue for source distance, increases the subjective realism of the display, and improves the externalization of simulated sound sources. However, relatively little is known about perceptual sensitivity to differences in reverberation patterns or how precisely reverberation must be simulated in a spatial auditory display. This paper ...

Reverberation suppression is a crucial problem in speech communications. The intelligibility of the speech signal will be degraded by strong reverberation. This paper presents a novel signal processing scheme that offers an improved solution in reducing the effect of interference caused due to reverberation. It is based on the combination of empirical mode decomposition (EMD) and adaptive boost...

A finite element model for the reverberation and propagation in a shallow water waveguide with a sandy bottom was calculated for five different environments at a center frequency of 250 Hz. The various environments included a rough water/sediment interface, a rough air/water interface, roughness at both interfaces and downward and upward refracting sound speed profiles with roughness at both in...

In separate experiments, word recognition performance of two groups of 12 normal-hearing young adults was investigated as a function of temporal distortion (i.e., time compression ratio or reverberation time) with and without a simulated high-frequency hearing loss (i.e., low-pass filtered at 2000 Hz). Performance decreased significantly as a function of increasing time compression, reverberati...

Context. We present a probabilistic cross-correlation approach to estimate time delays in the context of reverberation mapping (RM) active galactic nuclei (AGN).

This paper describes the design of a small reverberation chamber. The lower usable frequency of the reverberation chamber designed in this paper is 2.3 GHz. The upper usable frequency depends on the conductivity of the walls and it is at least 18 GHz. The introduction gives basic information and usage of the reverberation chamber, while the theory is explained in the next section. Unlike other ...

This paper describes our experience with lecture halls with regard to the room acoustics, sound reinforcement and audio frequency induction loops for persons with hearing impairment. The optimum reverberation time and geometrical conditions for classrooms are well known. Recent research basically confirms this knowledge but indicates the need for shorter reverberation times. However, many exist...