2168results about "Loudspeaker spatial/constructional arrangements" patented technology

Multichannel audio playback devices and associated systems and methods are disclosed herein. In some examples, a first playback device is configured to receive a source stream of audio content comprising left, right and center input channels. In a first mode, the first playback device is configured to play back audio via a plurality of transducers based on the left, right, and center input channels. In a second mode, in which the first playback device is bonded to second and third playback devices, the first playback device is configured to (i) play back audio via the plurality of transducers based on at least the center input channel, (ii) cause audio to be played via the second playback device based on at least the right input channel, and (iii) cause audio to be played via the third playback device based on at least the left input channel.

An audio system is provided that includes a first loudspeaker and a second loudspeaker. The first loudspeaker transmits an audio signal including audio data and a signature tone into a listening environment. The second loudspeaker includes at least one controller programmed to receive the audio signal including the audio data and the signature tone and to determine a direction of arrival (DOA) of the audio signal as received at the second loudspeaker based at least on the signature tone. The at least one controller is further programmed to perform a time frequency masking operation on the received audio signal prior to determining the DOA of the audio signal.

A loudspeaker assembly is disclosed that includes a headrest having a front face and a rear face; a bass dipole loudspeaker mounted to the headrest, wherein the loudspeaker includes a diaphragm having first and second radiating surfaces, wherein the radiating surfaces are located on opposite faces of the diaphragm, wherein the diaphragm moves at bass frequencies such that the radiating surfaces produce sound; a bass waveguide to guide bass produced by the first radiating surface via a forward-facing opening provided by the waveguide, wherein the loudspeaker is mounted such that bass produced by the second radiating surface propagates out from the rear face and such that the first radiating surface is closer to the rear face than to the front face. The forward-facing opening is larger than the first radiating surface as projected onto a plane perpendicular to a movement axis of the loudspeaker.

A projector includes an exterior housing having a first wall and a second wall opposite from each other, a third wall and a fourth wall opposite from each other, and a fifth wall and a sixth wall opposite from each other, a speaker unit including a first sound emitter provided in the speaker housing, and an intake fan. The first wall includes a communication port serving as a sound emission port of the first sound emitter, the fifth wall includes a contact portion that comes into contact with an installation surface, a noncontact portion that does not come into contact with the installation surface, and an air intake port provided at the noncontact portion, and the air intake fan communicates with the communication port and the air intake port.

A soundbar for medical monitoring which may comprise a speaker, a sensor, and a hardware processor. The speaker can be configured to emit audio signals. The sensor can be configured to obtain sensor data relating to a physiology of a subject. The sensor can include a camera and the sensor data can include image data. The hardware processor can be configured to access the sensor data and determine a health status of the subject based on at least the sensor data.

A sound apparatus for a vehicle can include an enclosure having an internal space and a sound generating module disposed at the internal space, and a fixing part configured at the enclosure. The fixing part can be fixed to a supporting part at a vehicle structure.

Various implementations include audio systems and approaches for creating personal audio zones. Certain implementations include a system having: a first set of near-field (NF) speakers; a set of sensors for detecting a position of a first user; and a controller coupled with the first set of NF speakers and the set of sensors and configured to adjust an audio output at the set of NF speakers, wherein the controller is configured to maintain spatialization of the audio output to the first user based on detecting at least one of a position change or an orientation change of the first user, and wherein the controller is configured to control the spatialized audio output to the first user with the first set of NF speakers with consideration of isolation to a second listening location.

The invention provides a cockpit multi-tone area management method, a related device and a communication system. The cabin system may angry the plurality of screens into a plurality of ride zones according to a profile. Each riding area can be associated with a sound area. The cabin system can dynamically create and delete the sound area according to the access and removal of the sounding device. The cabin system can perform unified management on audio focus, volume, audio routing and media session in a sound area. The application corresponding to one driving area can apply for the audio focus in the sound area associated with the driving area, and the sound production equipment in the sound area is used for playing the audio. Audio playing in different sound areas can be independent and does not affect each other. Therefore, different users in the vehicle can use different sound areas to listen to the audio conveniently, and the audio listening experience of the users in the vehicle is improved.

A mirror includes a base portion configured to support the mirror, a mirror head assembly, and a support portion connected to the base portion and configured to support the mirror head assembly. The mirror head assembly includes a first mirror plate, a second mirror plate, a first light-transmissive region adjacent to the first mirror plate, a second light-transmissive region adjacent to the second mirror plate, and a light source disposed in an interior of the mirror head assembly and configured to emit light to the first light-transmissive region and the second light-transmissive region. The base portion may include one or more audio speakers and / or storage compartments and / or charging pads configured for wirelessly charging an electronic device.

The invention discloses a spatial audio system, an audio processor and a virtual surround sound conversion method for stereo loudspeaker playing equipment. The method for converting spatial audio into virtual surround sound on the premise of not increasing the number of sound channels comprises the following steps: receiving initial audio stream data; performing space rendering operation, namely presetting a virtual space, and setting the orientation of a virtual ear in the virtual space; simulating sound propagation of the audio in the virtual space by using an HRTF algorithm, and simulating sound received by ears and propagated in the virtual space; analyzing the sound difference received by the left and right ears; estimating the position of the virtual sound source in the virtual space according to the sound difference received by the left and right ears; after spatial rendering is completed, the audio is recoded into a virtual surround sound audio containing spatial position information. By simulating the sound field and the environmental response, the user can feel the positioning and environmental feeling of the audio source in the virtual space, and the immersion and reality of the audio experience are enhanced.

Some disclosed methods involve receiving, by a control system, location control data from a sound source as the sound source emits sound in a plurality of sound source locations within an audio environment. Some such methods involve receiving, by the control system, direction of arrival data from each audio device of a plurality of audio devices in the audio environment. In some examples, each audio device of the plurality of audio devices includes a microphone array and the direction of arrival data corresponding to microphone signals from microphone arrays responsive to sound emitted by the sound source in the plurality of sound source locations. Some such methods involve estimating, by the control system, sound source locations and audio device locations based, at least in part, on the location control data and the direction of arrival data.

Examples described herein relate to management of concurrent audio streams from different sources. Portable playback devices, such as wearable wireless headphones and earbuds, as well as portable battery-powered speakers, may include multiple network interfaces for connection to different types of networks, such as an 802.11-compatible network interface for connection to wireless local area networks (e.g., Wi-Fi® networks) and an 802.15-compatible network interface for connection to a mobile device via a personal area network (Bluetooth®). Via such connections, the playback devices may receive two or more concurrent streams. By managing these streams according to playback policies, the portable playback devices may play the user's intended audio without necessarily requiring user input to explicitly select among the concurrent streams.

To provide a projector that can suppress complication and reduce size.SOLUTION: A projector comprises: an exterior housing having a first wall and a second wall opposite from each other in a first axis, a third wall and a fourth wall opposite from each other in a second axis, and a fifth wall and a sixth wall opposite from each other in a third axis; a speaker unit having a speaker housing and a first sound emitter provided in the speaker housing; and a fan provided inside the exterior housing. The first wall includes a communication port that causes an interior and an exterior of the exterior housing to communicate with each other to form a sound emission port of the first sound emitter. The fifth wall includes: a contact portion that comes into contact with an installation surface; a noncontact portion that is provided continuously with the first wall and does not come into contact with the installation surface; and an air intake port that is provided at the noncontact portion and has flow path resistance smaller than flow path resistance of the communication port. The speaker housing is disposed to oppose each of the communication port and the air intake port, and the fan communicates with the communication port and the air intake port and sucks air outside the exterior housing.SELECTED DRAWING: Figure 12

A wearable speaker comprises: a speaker module equipped with a audio output unit; and a fixing module magnetically coupled to the speaker module, wherein the speaker module includes: a speaker housing having a sound hole formed on a first surface; the audio output unit positioned inside the sound hole; a battery positioned inside the speaker housing; and a first magnet disposed adjacent to a second surface of the speaker housing, and the fixing module includes a second magnet coupled to the first magnet. The wearable speaker can be easily attached to and detached from a user's clothes and thus can be attached to existing clothes and detached when washing the clothes, thereby improving usability.

The invention provides a control method and device of a vehicle-mounted external loudspeaker and a vehicle-mounted external loudspeaker system. The control method comprises the following steps that in response to starting of a vehicle-mounted loudspeaker box mode, the relative position relation between a user and a vehicle is obtained at a preset time interval, and the vehicle is provided with a plurality of vehicle-mounted external loudspeakers making sounds outwards; determining a target loudspeaker and a corresponding sound channel from the plurality of vehicle-mounted external loudspeakers at least based on the relative position relationship; and controlling each target loudspeaker to play the audio data of the corresponding sound channel. The invention provides a mode of taking the vehicle as a large mobile sound box capable of providing a surround sound field, and the provided surround sound field can be adjusted according to the relative position relationship between the user and the vehicle, so that the hearing effect of the user when using the vehicle-mounted sound box is improved, the application scene of the vehicle is expanded, and the user experience is improved.

Example techniques relate to primary-ambient playback of surround audio by audio playback devices. Example playback devices described herein may include multiple speakers, such as a forward-firing audio transducer and side-firing audio transducers. Using example techniques, such playback devices may perform primary-ambient decomposition to separate surround channels into primary′ and ambient channels. The playback devices play back the ambient channel(s) via the side-firing transducers and the primary channel via the forward-firing transducer.

A sound system capable of reducing the number of speakers required for performing localized reproduction in stereo is provided. A first speaker emits a sound based on an L (2n−1)-th processed acoustic signal with signal processing to make it audible in a first region in an L direction to an L (2n−1)-th acoustic signal and an R (2n)-th processed acoustic signal with signal processing to make it non-audible in a fourth region in an R direction to an R (2n)-th acoustic signal, and a second speaker emits a sound based on an L (2n)-th processed acoustic signal with signal processing to make it non-audible in a second region in an L direction to an L (2n)-th acoustic signal and an R (2n−1)-th processed acoustic signal with signal processing to make it audible in a third region in an R direction to an R (2n−1)-th acoustic signal.

A system and method for delivering full-bandwidth sound to an audience in an audience space located in front of an acoustically reflective image screen such as a plasma, LCD, LED, or OLED screen. The sound delivery system provides for two separate and spatially displaced sound sources, namely, a high frequency loudspeaker for reproducing high frequency components of the sound associated with images displayed on the acoustically reflective image screen, and a separate low frequency loudspeaker for reproducing low frequency components of the image-associated sound. The high frequency loudspeaker or loudspeakers are positioned in front of the image screen to direct the high frequency components of the sound at the image screen where it is reflected back into the audience space, whereas the low frequency loudspeaker or loudspeakers are positioned at or about the acoustically reflective image screen and direct the low frequency components of the sound toward the audience space which are time-aligned with the high frequency components.

An electronic device including at least one speaker, a communication interface, and at least one processor that is connected with the at least one speaker and the communication interface and controls the electronic device. The processor, when the electronic device is in a first mode, may output one or more first channel signals included in a sound via at least one speaker and control the communication interface to transmit one or more second channel signals in the sound to at least one external speaker, and when the electronic device is in a second mode, mix at least one of the one or more first channel signals and the one or more second channel signals to thereby produce a mixed signal and control the communication interface to transmit the mixed signal to the at least one external speaker.

An example media playback system includes an upward-firing transducer and a horizontal-firing transducer in a playback device and a microphone that is horizontally spaced apart from the upward-firing transducer. The media playback system is configured to output a first audio signal from the upward-firing transducer and a second audio signal from the horizontal-firing transducer, receive a reflection of the first audio signal from a ceiling of a listening environment at the microphone, receive the second audio signal at the microphone, determine a distance between the playback device and the microphone based on the second audio signal, and determine a ceiling characteristic based on the reflection of the first audio signal and the distance between the playback device and the microphone.

A sound control system includes a sound generating device disposed at a vehicle ceiling corresponding to a seat region of the vehicle and at a sound space formed within the vehicle to correspond to the seat region, and a sound processing circuit for providing a vibration driving signal to the sound generating device. The sound generating device vibrates an interior material of the vehicle ceiling based on the vibration driving signal.

Device localization (e.g., ultra-wideband device localization) may be used to provide coordinated outputs and / or receive coordinated inputs using multiple devices. Providing coordinated outputs may include providing partial outputs using multiple devices, modifying an output of a device based on its position and / or orientation relative to another device, and the like. In some cases, each device of a set of multiple devices may provide a partial output, which combines with partial outputs of the remaining devices to produce a coordinated output.

A multi-stream rendering system and method may render and play simultaneously a plurality of audio program streams over a plurality of arbitrarily placed loudspeakers. At least one of the program streams may be a spatial mix. The rendering of said spatial mix may be dynamically modified as a function of the simultaneous rendering of one or more additional program streams. The rendering of one or more additional program streams may be dynamically modified as a function of the simultaneous rendering of the spatial mix.

A sound system is shown in the form of a speaker with or without a speaker box. A front member may be used with a speaker support, with the speaker mounted to the speaker support, thus comprising a speaker assembly. The front member of the speaker assembly may include an elongate open portion with a top end and a bottom end and the speaker positioned adjacent to the elongate open portion between the top end and the bottom end. The speaker assembly may be coupled to a portion of the vehicle seat which is not obstructive to the positioning of a user in the vehicle seat. This combination may be used in a vehicle seat but also in a backpack, a chair, personal gaming seat, arcade gaming seat, gambling machine seat, bed, massage table or any other similar device.

To assist a driver in perceiving a change of the force applied to a vehicle and improve the accuracy of driving operation.SOLUTION: The present invention comprises: a controller 10 (sound control unit 11) constituted so as to generate a sound signal that represents a sound and set the localization of a sound; and left and right front speakers 20A and rear speakers 20B for outputting a sound that corresponds to a sound signal the localization of which has been set by the controller 10. The controller 10 sets the localization of a sound on the basis of a change amount per unit time of a physical quantity that correlates to driving operation (pitch rate, torque change amount, roll rate, steering angle speed, etc.), so that the sound image of a frequency component (low frequency component) of at least a portion of the sound is located in a wheel direction where the ground load is increasing in accordance with the driving operation of a driver of a vehicle 2.SELECTED DRAWING: Figure 5

The present disclosure provides a double-sided speaker, comprising a combination of a magnetic conductive carrying board and a side magnetic conductive member (or magnetic conductive carrying board component), a first magnetic circuit module, a second magnetic circuit module, a first voice coil, a second voice coil, a first vibrating component, and a second vibrating component. The magnetic conductive carrying board comprises two sidewalls and a bottom plate. The two sidewalls are disposed at two sides of one side surface of the bottom plate. The side magnetic conductive member is disposed at two sides of the other side surface of the bottom plate. The first magnetic circuit module is disposed at one side of the magnetic conductive carrying board. The second magnetic circuit module is disposed at the other side of the magnetic conductive carrying board.

An integrated power supply system with audio and electronic communication and connection capabilities for being retained relative to a work surface. The system has a system base, power outlets, electronic data connectivity ports, and speakers. The connectivity ports can comprise USB, USB-C, LAN, HDMI, telephonic, or other ports. A telephone connectivity subsystem enables telephone communication, and a wireless connectivity subsystem enables wireless operation. A central engaging portion of the system base is received into positive engagement in a selective position along a mounting collar and within an aperture in the work surface, and a mounting bracket clamps the work surface between the system base and the mounting bracket. A detachable electronic command console is operative to control electronic operation of the system base and electronics coupled to the system base. The command console is further operative to permit control and operation of the telephone connectivity subsystem.

An information presentation device includes one or more speakers, one or more acceleration detectors, and a processor. The one or more speakers are configured to present an occupant of a vehicle with audio information. The one or more acceleration detectors are configured to respectively output one or more acceleration signals respectively indicating longitudinal acceleration rates of one or more unsprung components that make relative displacements to a vehicle body of the vehicle in accordance with respective strokes of one or more suspensions that respectively support one or more wheels of the vehicle. The processor is configured to perform filter processing with a predetermined frequency band on the one or more acceleration signals and output one or more resultant signals as one or more driving signals respectively to the one or more speakers.

Two speaker units are arranged on the right side from the center of a seat; two speaker units are arranged on the left side from the center of the seat; one of the two speaker units arranged on the right side is arranged at a position closer to the right ear of a user seated on the seat as compared with the other one of the two speaker units arranged on the right side; one of the two speaker units arranged on the left side is arranged at a position closer to the left ear of the user seated on the seat as compared with the other one of the two speaker units arranged on the left side; acoustic signals obtained on the basis of a reproduction target are emitted from the two speaker units arranged on the right side to be opposite in phase to each other; the acoustic signals obtained on the basis of the reproduction target are emitted from the two speaker units arranged on the left side to be opposite in phase to each other; and the acoustic signals are emitted from two speaker units arranged on the positions closer to the ears not to be opposite in phase to each other.