Abstract: A suspension system for supporting a body relative to at least four points, including: a respective front left, front right, back left and back right support arrangement between the respective point and the body, each respective support arrangement including a respective resilience arrangement and a respective control ram, each respective control ram including a respective compression chamber forming at least part of a respective compression control volume; a control arrangement including a first and a second diagonal reversible pump for displacing fluid between diagonally opposite compression control volumes. Each respective resilience arrangement can include a respective damping arrangement to restrict and/or selectively prevent compression and/or expansion of at least a portion of the respective resilience arrangement. Each respective control ram can further include a respective rebound chamber, the front control rams being cross connected and the back control rams being cross connected.

Abstract: Provided are a system and method for evaluating sound system performance, comprising: representing an audience space is represented on a surface of a sphere. The sphere has a center that is substantially collocated with a center of a sound system. An efficiency of the sound system is calculated by determining an amount of energy produced by the sound system that reaches the audience space projected onto the sphere relative to a total amount of energy produced by the sound system. A metric is generated for a function by normalizing the efficiency by a ratio of an area of the audience space relative to a total area of the sphere to produce a score for the performance of the sound system.

Abstract: Provided are a system and method for evaluating sound system performance, comprising: representing an audience space is represented on a surface of a sphere. The sphere has a center that is substantially collocated with a center of a sound system. An efficiency of the sound system is calculated by determining an amount of energy produced by the sound system that reaches the audience space projected onto the sphere relative to a total amount of energy produced by the sound system. A metric is generated for a function by normalizing the efficiency by a ratio of an area of the audience space relative to a total area of the sphere to produce a score for the performance of the sound system.

Abstract: A sound system design/simulation system includes background noise to provide more realistic sound renderings of the designed space and more accurate quality measures of the design space. The background noise may be provided as a library in the design system that allows the user to select a background noise profile. The user may also provide a recording of a background noise from the built space or from a similar space. The design system converts the recorded background noise to a background noise profile and adds the profile to the library of background noise profiles. The user can select a background noise profile and associate the profile with a specified space. The user can adjust the noise level of the background noise and the design system automatically updates one or more quality measures in response to the change in background noise level.

Abstract: An automated sound system design device and a method for operating it. A computer is constructed and arranged to accept input of facility information signals and sound system preference signals requirements, and using a previously stored assemblage of component performance capability data signals to generate a sound system output signal configuration, representative of a desired sound system.

Abstract: The invention is directed to a display and method for conducting sound system design. The display is configured to simultaneously show a sound system model comprising both audio components and sound environment components, a plurality of parameters and a graphic representation of a calculated sound system performance attribute. In response to receiving input from the user and without any additional user intervention, the display re-displays a newly-calculated sound system performance attribute such as, for example, a graphic representation in the sound system model of a sound path associated with a user-selected reflected sound identifier. A processor also simulates, based on the sound system configuration, the sound performance that a user would expect to hear positioned in an identified listening position of the sound system model.