Abstract: A microphone arrangement comprises a microphone comprising a microphone element, a housing and a cover, the housing and the cover cooperating with one another to surround the microphone element, and the cover comprising a first opening in order to enable the respective microphone element to detect sound. The microphone arrangement further comprises a frame defining an internal volume and comprising a third opening, and a motor configured to move the microphone from a first position to a second position and from the second position to the first position. When the microphone is in the first position, the first opening is arranged on a first side of the third opening and within the internal volume defined by the frame, and, when the microphone is in the second position, the first opening is arranged on a second side of the third opening and outside of the internal volume defined by the frame.

Abstract: A microphone arrangement comprises a retractable door handle that, when in a closed position, is retracted in a body work of a vehicle, and, when in an in-use position, protrudes from the body work of the vehicle.

Abstract: In at least one embodiment, a multi-stage sound and vibration sensor is provided. The multi-stage sound and vibration sensor includes a housing, a first piezo-diaphragm and a second piezo diaphragm. The first piezo-diaphragm and the second piezo-diaphragm are positioned in the housing to detect an input signal including audio or vibrations. The first piezo-diaphragm and the second piezo-diaphragm provide a first resonance frequency and a second resonance frequency in response to detecting the audio or the vibrations.

Abstract: In at least one embodiment, a multi-stage sound and vibration sensor is provided. The multi-stage sound and vibration sensor includes a housing, a first piezo-diaphragm and a second piezo diaphragm. The first piezo-diaphragm and the second piezo-diaphragm are positioned in the housing to detect an input signal including audio or vibrations. The first piezo-diaphragm and the second piezo-diaphragm provide a first resonance frequency and a second resonance frequency in response to detecting the audio or the vibrations.

Abstract: A vehicle microphone system may include at least two microphones forming a microphone array, at least one loudspeaker configured to emit audio signals. a processor coupled to a memory and programmed to receive incoming audio signals from the microphone array, determine at least one parameter for each channel of the microphone array, determine at least one filter to apply to at least one channel based on a difference between the parameters of each channel, and store the at least one filter in the memory.

Abstract: In at least one embodiment, a sound and vibration sensor is provided. The sound and vibration sensor includes a housing, a piezo-diaphragm, and a flexible support plate. The piezo-diaphragm is positioned in the housing to detect an input signal including audio or vibrations. The flexible support plate receives the piezo-diaphragm to enable the sensor to exhibit a frequency response with a plurality of resonant frequencies in response to detecting the audio or the vibrations on the input signal.

Abstract: In at least one embodiment, a sound and vibration sensor is provided. The sound and vibration sensor includes a housing, a piezo-diaphragm, and a flexible support plate. The piezo-diaphragm is positioned in the housing to detect an input signal including audio or vibrations. The flexible support plate receives the piezo-diaphragm to enable the sensor to exhibit a frequency response with a plurality of resonant frequencies in response to detecting the audio or the vibrations on the input signal.

Abstract: In at least one embodiment, a multi-stage sound and vibration sensor is provided. The multi-stage sound and vibration sensor includes a housing, a first piezo-diaphragm and a second piezo diaphragm. The first piezo-diaphragm and the second piezo-diaphragm are positioned in the housing to detect an input signal including audio or vibrations. The first piezo-diaphragm and the second piezo-diaphragm provide a first resonance frequency and a second resonance frequency in response to detecting the audio or the vibrations.

Abstract: A method for producing a luminaire housing on an additive manufacturing system includes selecting a luminaire housing base shape from which a data file of a first convex polyhedral model is built, rescaling the first convex polyhedral model into a larger convex polyhedral model, filling the larger convex polyhedral model with multiple versions of the first convex polyhedral model, separating larger convex polyhedral shape model into structural unit shape, and providing the data file containing the structural unit shapes to the additive manufacturing system. In some implementations an interior volume of the larger convex polyhedral shape model can be cleared of portions of first convex polyhedral model. The method includes the additive manufacturing system producing one or more structural units based on the structural unit shapes described in the electronic data file. A non-transitory computer readable medium, and a luminaire housing including a light source are described.

Abstract: A method for producing a luminaire housing on an additive manufacturing system includes selecting a luminaire housing base shape from which a data file of a first convex polyhedral model is built, rescaling the first convex polyhedral model into a larger convex polyhedral model, filling the larger convex polyhedral model with multiple versions of the first convex polyhedral model, separating larger convex polyhedral shape model into structural unit shape, and providing the data file containing the structural unit shapes to the additive manufacturing system. In some implementations an interior volume of the larger convex polyhedral shape model can be cleared of portions of first convex polyhedral model. The method includes the additive manufacturing system producing one or more structural units based on the structural unit shapes described in the electronic data file. A non-transitory computer readable medium, and a luminaire housing including a light source are described.