Abstract: A building automation system generates occupancy information for occupants of spaces of a building (e.g. quantity, identity and/or location of the occupants) based on occupancy sensors in the spaces. The occupancy sensors capture speech sounds originating from one or more occupants of the spaces and/or ultrasonic emissions originating from one or more user devices of the occupants are via microphone arrays. Audio data based on the captured sound is then generated. Position information for the sources of the sound is determined based on the audio data, and the audio data is enhanced based on the position information via a beamforming process. Occupancy information for the spaces is generated based on the audio data. Environmental conditions of the spaces are controlled based on the presence, absence, position, orientation, distribution and/or preferences of the occupants in the space.

Abstract: A method performed by a wearable audio output device worn by a user is provided for controlling the reproduction of external noise. At least one sound is detected in the vicinity of the audio output device using at least one microphone in the audio output device. A state of motion of the user is detected using at least one sensor in the audio output device. Based on the at least one sound and the state of motion of the user, at least one of a level of attenuation or a level of noise masking is determined to be applied by the audio output device to the external noise.

Abstract: The present invention discloses a speaker module and a sound production device. The module comprises a module shell and a speaker unit mounted in the module shell. The module shell comprises a shell main body and two fixed pole plates connected fixedly on the shell main body. The two fixed pole plates are insulated from each other, and each of the two fixed pole plates has a connecting portion exposed to the outside of the shell main body. A vibration system of the speaker unit is provided with a movable pole plate, and each of the two fixed pole plates together with the movable pole plate form a variable capacitor. The speaker module is configured to output an electrical signal representing a vibration displacement of the vibration system by the connecting portions of the two fixed pole plates.

Abstract: The invention relates to a method for compensating for interfering noises in a hands-free apparatus in a motor vehicle as well as a hands-free apparatus in a motor vehicle, comprising at least one microphone, at least one loudspeaker, a control device with at least one adaptive filter as well as a transmitting and receiving apparatus, wherein a pre-filter is arranged before the adaptive filter or predetermined filter coefficients (w[n]) are saved in the adaptive filter, wherein the filter coefficients (w[n]) minimize a vehicle-specific acoustic error signal of the vehicle interior.

Abstract: A reproducing apparatus includes, a first sensor, processing circuitry, an audio reproducing device, and an image reproducing device. The first sensor detects a current location of a user. The processing circuitry acquires a destination, determines a direction of the destination based on the current location, generates a guidance sound image and a guidance image, and determines a first output timing which is an output timing of the guidance sound image and a second output timing which is an output timing of the guidance image. The audio reproducing device reproduces the guidance sound image at the first output timing to guide the user toward the destination. The image reproducing device reproduces the guidance image at the second output timing to guide the user toward the destination.

Abstract: One or more sensors are configured to contextualize a series of user generated movements to control one or more electronic devices. For example, a set of earphones comprises one or more sensors for sensing a location of the earphones. The one or more sensors enable earphones such as a pair of bluetooth or earphones wirelessly coupled to a bluetooth enabled electronic device, the capability to understand the configuration of use of the earphones. Based on a location and use or non-use of the earphones, one or more contextual responses is able to be applied for a given action.

Abstract: A method for compressing a HOA signal being an input HOA representation with input time frames (C(k)) of HOA coefficient sequences comprises spatial HOA encoding of the input time frames and subsequent perceptual encoding and source encoding. Each input time frame is decomposed (802) into a frame of predominant sound signals (XPS(k?1)) and a frame of an ambient HOA component ({tilde over (C)}AMB(k?1)). The ambient HOA component ({tilde over (C)}AMB(k?1)) comprises, in a layered mode, first HOA coefficient sequences of the input HOA representation (cn(k?1)) in lower positions and second HOA coefficient sequences (cAMB,n(k?1)) in remaining higher positions. The second HOA coefficient sequences are part of an HOA representation of a residual between the input HOA representation and the HOA representation of the predominant sound signals.

Abstract: An integrated circuit, a circuit assembly and a method for operation the integrated circuit are disclosed. In embodiments an integrated circuit includes at least one supply voltage terminal configured to receive a supply voltage for operation of the integrated circuit, at least one input terminal configured to receive an analog input signal corresponding to an audio signal, at least one output terminal configured to provide an analog output signal, a signal strength detector configured to detect a signal strength of the analog input signal provided at the at least one input terminal and a signaling circuit configured to indicate an amplification setting of the integrated circuit at the at least one output terminal, wherein the integrated circuit is configured to amplify the audio signal based on the detected signal strength and to output a corresponding amplified signal at the at least one output terminal.

Abstract: Audio signals are received. The audio signals include left and right surround channels. The audio signals are played back using far-field loudspeakers distributed around a space having a plurality of listener positions. The left and right surround channels are played back by a pair of far-field loudspeakers arranged at opposite sides of the space having the plurality of listener positions. An audio component coinciding with or approximating audio content common to the left and right surround channels is obtained. The audio component is played back using at least a pair of near-field transducers arranged at one of the listener positions. Associated systems, methods and computer program products are provided. Systems, methods and computer program products providing a bitstream comprising the audio signals and the audio component are also provided, as well as a computer-readable medium with data representing such audio content.

Abstract: A speaker box for accommodating a speaker, including an outlet port provided avoiding an area corresponding to a center portion of the speaker, in a first side surface section of the speaker box which is parallel to a center axis of the speaker, and an inlet port provided avoiding an area corresponding to the center portion of the speaker, in a second side surface section of the speaker box which is opposed to the first side surface section via the speaker.

Abstract: A method for generating label data is provided, and the method includes the following steps: sensing a posture of a user to generate a non-depth image; sensing the posture of the user to generate a depth image; sensing the posture of the user to generate motion data; and generating an identifying result of the posture according to the non-depth image and the depth image and labeling the motion data according to the identification result to generate label data.

Abstract: A method includes: executing an order tracking process of a measured noise signal at an nth order and at least one adjacent order to obtain an nth tracked signal and an interference signal based on an adjacent tracked signal of the at least one adjacent order, and extracting the interference signal from the nth tracked signal to obtain a refined nth order tracked signal.

Abstract: An audio signal processor includes: a first amplifier that amplifies a first audio content; a mixer that mixes an output signal of the first amplifier and a second audio content; a second amplifier that amplifies an output signal of the mixer; and a setter that sets an amplification amount of the first amplifier. The setter sets an amplification amount in the first amplifier so that the amplification amount in the first amplifier cancels an amplification amount in the second amplifier.

Abstract: Disclosed is an electronic device including: a display, a speaker, an inner structure including a front surface on which the display is seated, a rear surface having a seating portion for the speaker formed thereon, and a side surface connecting the front surface and the rear surface, and a housing in which the inner structure is seated. The inner structure includes: a first space formed by indentation of a part of the bottom surface of the seating portion toward the front surface of the inner structure, a second space formed to be open toward the front surface of the inner structure such that the second space is connected to and partially overlaps with the first space in a direction defined toward the front surface of the inner structure, and a duct formed to be open toward the side surface of the inner structure such that the duct is connected to and partially overlaps with the second space in a direction defined toward the rear surface of the inner structure.

Abstract: An audio transmission system of the present invention includes: an unmanned aircraft; a steering terminal that is used to steer the unmanned aircraft; and an information terminal configured to access a server providing a service for translating text data created in an official language of a country into a designated language other than the official language, and converting the translated text data into audio data, the information terminal being able to download the audio data from the server. The information terminal transmits the audio data in the designated language downloaded from the server to the unmanned aircraft, and the unmanned aircraft outputs the audio data in the designated language as an audio message from a speaker attached to an airframe.

Abstract: A sound signal processing apparatus including a plurality of microphones, where each microphone is configured to receive the sound signal from the target source, a processor configured to estimate a first power measure on the basis of the sound signal from the target source received by a first microphone of the microphones and a second power measure on the basis of the sound signal from the target source received by at least a second microphone of the microphones, which is located more distant from the target source than the first microphone, and the processor is further configured to determine a gain factor on the basis of a ratio between the second power measure and the first power measure, and an amplifier configured to apply the gain factor to the sound signal from the target source received by the first microphone.

Abstract: One embodiment provides a method comprising determining an actual elevation of a sound source. The actual elevation is indicative of a first location at which the sound source is physically located relative to a first listening reference point. The method further comprises determining a desired elevation for a portion of an audio signal. The desired elevation is indicative of a second location at which the portion of the audio signal is perceived to be physically located relative to the first listening reference point. The desired elevation is different from the actual elevation. The method further comprises, based on the actual elevation, the desired elevation and the first listening reference point, modifying the audio signal, such that the portion of the audio signal is perceived to be physically located at the desired elevation during reproduction of the audio signal via the sound source.

Abstract: Embodiments of the present invention provide a noise cancellation system, comprising noise cancellation parameter selection means for receiving data indicative of one or more operating conditions associated with a vehicle and selecting one or more noise cancellation configuration parameters based thereon, and noise cancellation means for receiving one or more noise signals, determining an in-vehicle noise cancellation signal based on the one or more noise signals according to the one or more configuration parameters and outputting the in-vehicle noise cancellation signal for reducing noise in the vehicle.

Abstract: A MEMS device includes a backplate electrode and a membrane disposed spaced apart from the backplate electrode. The membrane includes a displaceable portion and a fixed portion. The backplate electrode and the membrane are arranged such that an overlapping area of the fixed portion of the membrane with the backplate electrode is less than maximum overlapping.

Abstract: A method operates a hearing device. A first input signal is generated by a first input transducer of the hearing device from an ambient sound signal. An external input transducer outside of the hearing device generates an external input signal from the ambient sound signal. A relative transfer function from the external input transducer to the hearing device with respect to a target signal source is ascertained based on the first input signal and/or external input signal. The external input signal is filtered by the relative transfer function, thereby generating an estimated target signal. Noise suppression takes place in the hearing device based on the estimated target signal.