4/10/2023 0 Comments Audio system designerA discomfort test, a seat characterizing rating on a scale of word pairs, and the overall experience of the seats were examined in four different sitting positions. This study investigates the tactile perceived seat-human interaction of four types of BMW 5-series seats with the same foam properties and contours but different seat cover and seat suspension properties 38 healthy subjects participated in an experiment rating and ranking the tactile perceived properties of the seats while blindfolded. The proposed arrays are then implemented in a real car to validate the simulation results and the results of a real-time implementation are presented. The performance of the arrays is first simulated in a car cabin sized rectangular enclosure to understand the physical limits on the achievable control. The standard car audio loudspeaker array is used to produce independent listening zones at low frequencies, while a second array of small loudspeakers positioned at the four headrest positions is used to provide control over the rest of the audio bandwidth. This paper presents an investigation of the effects of a car cabin sized enclosure on the generation of independent listening zones in the front and rear seats. Personal audio systems have previously been implemented in mobile devices and monitors, for example, however, the investigation of the effects of an enclosure on the generation of personal listening zones has been limited. This would allow, for example, the driver to listen to a navigation system while the rear passengers watched a film. The generation of personal listening zones in a car cabin would allow the different occupants to listen to different audio programs without the use of headphones.
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