Between 1984 and 1993, visual and acoustic methods were combined to census the Bering-Chukchi-Beaufort bowhead whale, Balaena mysticetus, population. Passive acoustic location was based on arrival-time differences of transient bowhead sounds detected on sparse arrays of three to five hydrophones distributed over distances of 1.5-4.5 km along the ice edge. Arrival-time differences were calculate...

Experiment 1 investigated developmental differences at high stimulus rates by using maximum length sequences (MLSs) and cross-correlation techniques to recover auditory evoked brainstem responses (ABRs). Reliable MLS ABRs were recorded in all of the newborns tested at the highest rate presented (minimum interpulse interval = 1.1 msec). Interpreting developmental rate effects from latency and am...

[1] We examine continuous data from the Southern California Seismic Network from 2003 and identify infrasound acoustic waves from 76 previously undetected events. Using waveform cross-correlation of the signal envelope functions, we determine their relative arrival times and estimate source locations. The waves travel at acoustic speeds of 320 m/s and are observed in seismic records up to 450 k...

PURPOSE To investigate whether a rapid and practical determination of the temporal frequency characteristic (TFC) of the visual system can be obtained by using the visually evoked potentials (VEPs) elicited by pseudorandom binary sequence (PRBS) stimulation. METHODS VEPs were recorded from eight volunteers. For the conventional steady state VEPs (S-VEP), the eye was stimulated with five stimu...

UNLABELLED Acoustic rhinometry and rhinomanometry are important tests used to assess nasal function. The degree to which the parameters of these tests are correlated is yet to be established. OBJECTIVE This paper aimed to study the correlations between nasal resistance (NR) and acoustic rhinometry parameters in children and adolescents with allergic rhinitis and controls. METHOD Twenty pati...

This paper proposes a three-layer model for the perception of emotional speech. Much of the earlier work has focused on the relationship between emotional speech and acoustic features that is characterized by statistics. The problem is that there lacks a model which takes the aspects of vagueness and human perception into consideration. In the model proposed here, five categories of emotion con...

Cepstral-based acoustic cues for disordered voices analysis have been investigated in a number of studies. It has been shown that cepstral-based acoustic cues such as the harmonics-to-noise ratio (HNR), the amplitude of the first rhamonic (R1A) provide acoustic correlates for hoarse voice quality. The aim of this presentation is to investigate an acoustic analysis of speech by means of spectral...