Otoacoustic emissions have historically been measured with an acoustical probe assembly hermetically sealed in the ear canal, imposing in most cases a limited stimulus bandwidth. A physically open recording system should afford the possibility of a greater stimulus bandwidth but the change in acoustical load may affect the magnitude of otoacoustic emissions obtained. Here it is reported that th...

Is the sound of a train whistling more similar to the sound of the wheels of a train or to the sound of your whistle? This question addresses the comparative relevance of acoustical and conceptual information to the perceived similarity of sound events. The answer to this question has theoretical and methodological consequences for the field of sound source perception, and for the behaviorally ...

When we hear a new voice we automatically form a "first impression" of the voice owner's personality; a single word is sufficient to yield ratings highly consistent across listeners. Past studies have shown correlations between personality ratings and acoustical parameters of voice, suggesting a potential acoustical basis for voice personality impressions, but its nature and extent remain uncle...

Magnetic resonance imaging (MRI) devices generate loud acoustical noise during operation. The sound pressure level of the MRI noise depends on the imaging sequence, but it is generally 100 dB or more. Our current study is aimed at the improvement of the acoustical environment for the MRI patient by means of an active noise control system. We propose using a feedforward system because acoustical...

When two acoustic cavities are connected through an opening, the acoustical characteristics of the resulting double cavity can be considerably affected by the opening. Typical examples include a passenger vehicle where a passenger compartment cavity is acoustically coupled with the trunk compartment cavity through small holes in the package tray. Although the locations and cross-sectional areas...

This paper proposes a new method using piecewise-linear transformation for adapting phone HMMs to noisy speech. Various noises are clustered according to their acoustical property and signal-to-noise ratios (SNRs), and noisy speech HMM corresponding to each clustered noise is made. Based on the likelihood maximization criterion, the HMM which best matches an input speech is selected and further...

Mood and emotion detection can play an important role in (music) entertainment applications. There are a lot of methods for mood and emotion detection in music through acoustical feature analysis. Some perform better depending on the situation. Differences in either music or emotions or precision of a method play a role in the application of a method. This paper presents a comparison of differe...

Approximating vocal tract by a series of acoustical tubes, reflection coefficients between the tubes are essential parameters for vocal tract area estimation. These parameters have been obtained through PARCOR analysis, with some devices to eliminate undesirable effects of fundamental period and radiation between lips. In this paper, vocal tract ratio estimation method is proposed using tempora...

This paper deals with a three-dimensional numerical procedure based on the finite-element method for the modeling of finite-amplitude progressive acoustic waves. The method can predict the nonlinear propagation of acoustic fields produced by sources of arbitrary geometry. Based upon a perturbation method, a second-order analytical study is developed and the numerical procedure is formulated. Ba...