Example techniques relate to adjusting playback settings based on listener location. An example implementation involves a playback device receiving instructions to play back audio content in the first zone and first location data indicating first locations of one or more users relative to the first zone. The playback device determines that one or more location-based listener preferences are set in the media playback system and generates a sound field in the listening environment according to the location-based listener preferences and the first locations of the one or more users relative to the first zone. The playback device receives second location data indicating second locations of one or more users relative to the first zone and modifies the sound field in the listening environment according to the location-based listener preferences and the second locations of the one or more users relative to the first zone.

A method for producing a multi-channel audio signal from one or more sound object signals is disclosed, where, for each sound object signal a plurality of width signals is produced, the amplitudes of the width signals following a substantially Gaussian distribution. The width signals are processed to produce a plurality of pan signals which are mapped to at least one channel. Each channel in the audio signal is produced by combining the pan signals from each sound object. An apparatus for reproducing such a multi-channel audio signal is also disclosed, in which a plurality of first loudspeakers are provided spaced around a first arc forward of a predetermined listening zone, each of the first loudspeakers facing towards the listening zone and substantially equidistant therefrom. A plurality of second loudspeakers are provided spaced around a second arc behind the listening zone, each of the second loudspeakers facing towards the listening zone. An amplifier produces an amplified signal from each channel in the audio signal, each amplified signal being provided to a corresponding first or second loudspeaker whereby in use each sound object is reproduced by one or more loudspeakers such that the SPL at a point spaced from the apparatus is less than the SPL at the listening zone.

A diaphragm for a micro loudspeaker includes an outer casing that is provided with a through-hole, a membrane that is disposed in the through-hole, and a suspension that connects the membrane and the outer casing. The outer casing is provided with an inner wall that wraps into the through-hole. The suspension includes an effective operation zone that is extended from the inner wall into the through-hole, and a fixed area that is extended from the inner wall to outside the through-hole. The fixed area of the suspension is provided with a cut-off area, which keeps the effective operation zone at a good intactness, and enables the membrane to vibrate up and down more uniformly, thereby improving the sound quality of micro loudspeaker.

An electromagnetic driving device includes a panel, and an electromagnetic driver attached to the panel and configured to vibrate the panel in a vibrating direction to generate sound. The electromagnetic driver includes a housing, a cover, and a driving unit disposed between the housing and the cover. The cover is attached to the panel. The driving unit includes a magnetic core, a coil wound around the magnetic core and mounted to the cover with a gap formed between the coil and the housing, and a pair of magnetic assemblies mounted to the housing and disposed on opposite axial sides of the coil. Magnetic fluxes emitted from one of the magnetic assemblies arrive at the other of the magnetic assemblies after passing through the coil. Screens of mobile terminals using the electromagnetic driving device have good acoustic effect and good reliability.

The invention relates to audio transducers, such as loudspeaker, microphones and the like, and includes improvements in or relating to: audio transducer diaphragm structures and assemblies, audio transducer mounting systems; audio transducer diaphragm suspension systems, personal audio devices incorporating the same and any combination thereof. The embodiments of the invention include linear action and rotational action transducers. For both types of transducer, rigid and composite diaphragm constructions and unsupported diaphragm periphery designs are described. Systems and methods for mounting the transducer to a housing, such as an enclosure or baffle are also described. Furthermore, hinge systems including: rigid contact hinge systems and flexible hinge systems are also disclosed for various rotational action transducer embodiments. Various applications and implementations are described and envisaged for the audio transducer embodiments including, for example, personal audio devices such as headphones, earphones and the like.

A bone conduction MEMS microphone includes a MEMS chip, a mass, a housing, and a circuit board. The MEMS chip and the housing are mounted on the same side of the circuit board. The housing and the circuit board cooperatively form a sealed chamber and the MEMS chip is accommodated in the chamber. The MEMS chip includes a back plate and a diaphragm, and the mass is fixed to the diaphragm. Since the chamber is sealed, the bone conduction MEMS microphone has no sound hole and airborne sound is therefore avoided. The mass is fixed to the diaphragm of the MEMS chip. Vibration signals of the sound transmitted through bones make the mass and the diaphragm vibrate to thereby realize conversion of sound to mechanical vibration of different frequencies, achieve clear sound restoration in a noisy environment, avoid interference from airborne noise, and ensure sound with high quality.

A bone conduction MEMS microphone includes a MEMS chip, a mass, a housing, and a circuit board. The MEMS chip and the housing are mounted on the same side of the circuit board. The housing and the circuit board cooperatively form a sealed chamber and the MEMS chip is accommodated in the chamber. The MEMS chip includes a back plate and a diaphragm, and the mass is fixed to the diaphragm. Since the chamber is sealed, the bone conduction MEMS microphone has no sound hole and airborne sound is therefore avoided. The mass is fixed to the diaphragm of the MEMS chip. Vibration signals of the sound transmitted through bones make the mass and the diaphragm vibrate to thereby realize conversion of sound to mechanical vibration of different frequencies, achieve clear sound restoration in a noisy environment, avoid interference from airborne noise, and ensure sound with high quality.

A vehicle is provided and includes a first tire, a second tire, and a detector that is configured to detect an air pressure of the first tire. A vibration generator is configured to generate vibration in the second tire. A controller is configured to operate the vibration generator to cause the second tire vibrate when the air pressure of the first tire satisfies a predetermined normal condition.

An electronic component includes an insulating base material including insulating base material layers, a first main surface that is a mounting surface, a coil, mounting electrodes provided on the first main surface, and a projection. The coil includes coil conductors provided on the insulating base material layers and a winding axis in a laminating direction of the insulating base material layers. The projection is provided in an electrode non-forming portion of the first main surface, the electrode non-forming portion including no mounting electrodes therein, and provided along the coil conductors in planar view of the first main surface.

An electronic component includes an insulating base material including insulating base material layers, a first main surface that is a mounting surface, a coil, mounting electrodes provided on the first main surface, and a projection. The coil includes coil conductors provided on the insulating base material layers and a winding axis in a laminating direction of the insulating base material layers. The projection is provided in an electrode non-forming portion of the first main surface, the electrode non-forming portion including no mounting electrodes therein, and provided along the coil conductors in planar view of the first main surface.