![]() The distribution from front to rear and left to right should be correlated with the volume of events that reach the CEP thresholds and are shown on the visual displays. ![]() In this example, a synthesized piano-like tone might be played for each sub-threshold event within the streams of weather data. The user/analyst could then sense contradictions between the audio and video channels as an indicator that events thresholds (or some other aspect of the system) should be retuned. Since humans are unable to discern fine changes in front-back panning, an additional auditory cue, such as pitch change, should accompany the panning. Additionally, panning from front to rear audio channels could correspond to low-to-high events within the CEP hierarchy. For example, if the displays on the left side of the EEL are being used to observe textual weather reports and the displays on the right side of the EEL are displaying geospatial views of satellite and radar TVS events, it might be helpful to pan the audio between left and right channels to reflect sub-threshold events or other selected attributes of the data. In such cases of 3D audio and multiple displays, it can be useful to have one or more dimensions of sound localization correspond to the physical location of related visual displays within the room. Thus, sound can be used to calibrate a visual analysis display. ![]() In facilities (such as Penn State University’s Extreme Events Lab (EEL) (see figure 3)) equipped with the capability to produce three-dimensional sound in addition to multiple three-dimensional visualizations, it is possible to use the auditory channels to represent status of system meta-processes while the visual channels are being utilized for actual data analysis. Situations in which the user is already required to actively monitor visual displays can often benefit from the use of auditory display (AD) technology to present additional information. Adding a third display showing graphs or more columns of numeric data reflecting the inner workings of the alerting system will only further distract the user. To continue the above example, a severe weather analyst may be tasked with monitoring a geospatial display showing the location of TVS events as well as a textual display showing reports from weather observers.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |