Abstract: A portable electronic device with a touch-sensitive display (such as a cellular telephone) provides a wireless remote control for an entertainment device (such as a consumer-electronic device). Based on device-state information that specifies a current state of the entertainment device (which is received from an audio/video (A/V) hub that communicates with the entertainment device) and one or more related states of the entertainment device, the portable electronic device may generate a user interface that includes one or more virtual command icons. Note that the one or more related states are related to the current state in a state diagram by corresponding operations that transition the entertainment device from the current state to the one or more related states. Then, the portable electronic displays the user interface on the touch-sensitive display. In this way, the portable electronic device dynamically adapts the user interface.

Abstract: An electronic device that performs self-configuration of a group of speakers is described. The electronic device may provide instructions for a set of second electronic devices to perform round-robin measurements in which, iteratively, each of the set of second electronic devices outputs sound while a remainder of the set of second electronic devices perform acoustic measurements. Then, the electronic device may receive information that specifies the acoustic measurements associated with the set of second electronic devices. Based at least in part on locations of the set of second electronic devices and the acoustic measurements, the electronic device may calculate acoustic radiation patterns of the set of second electronic devices, where a given acoustic radiation pattern includes a beam having a principal direction. Next, the electronic device may provide audio content and second information specifying the acoustic radiation patterns for the set of second electronic devices.

Abstract: An electronic device that performs automatic room filling is described. Based at least in part on information about an environment, which may include a second electronic device, the electronic device may determine a number of individuals in the environment. Then, based at least in part on the determined number of individuals, the electronic device may calculate an acoustic radiation pattern. For example, a width of a beam in the acoustic radiation pattern may be narrower when there is one individual in the environment, and the width of the beam may be wider when there is more than one individual in the environment. Next, the electronic device may provide audio content and second information specifying the acoustic radiation pattern for the second electronic device.

Abstract: An electronic device that dynamically adapts sound based at least in part on content and context is described. The electronic device may acquire information about an environment, which may include the second electronic device. Based at least in part on the information, the electronic device may determine a context associated with the environment (such as a number of individuals in the environment, a type of lighting in the environment, a time or a timestamp, a location, etc.). Then, based at least in part on the determined context and a characteristic of audio content (such as a type of music), the electronic device may calculate an acoustic radiation pattern. Next, the electronic device may provide the audio content and second information specifying the acoustic radiation pattern for the second electronic device.

Abstract: An electronic device that performs active room shaping and/or noise control is described. The electronic device may acquire information about an environment, which may include a second electronic device and a third electronic device. Based at least in part on audio content, locations of a second electronic device and a third electronic device and a location of a boundary of the environment, one or more of which may be specified by the information, the electronic device may calculate acoustic radiation patterns of the second electronic device and the third electronic device, where the acoustic radiation patterns selectively modify a reverberation characteristic of the environment. Then, the electronic device may provide the audio content and second information specifying the acoustic radiation patterns for the second electronic device and the third electronic device.

Abstract: An electronic device that performs dynamic cross-talk cancellation is described. The electronic device may acquire information about an environment, which may include a second electronic device. Based at least in part on the information, the electronic device may determine locations of different individuals in the environment. Then, based at least in part on the locations, the electronic device may calculate an acoustic radiation pattern of a second electronic device. The acoustic radiation pattern may include a beam having a principal direction approximately directed towards the location of one individual, and an exclusion zone in which an intensity of output sound is reduced below a threshold value and that includes the location of another individual. Next, the electronic device may provide audio content and second information specifying the acoustic radiation pattern for the second electronic device.

Abstract: An electronic device that provides dynamic equalization in a directional speaker array is described. Based at least in part on audio content and an acoustic radiation pattern associated with a second electronic device, the electronic device may determine drive signals for a set of drivers. Then, the electronic device may adjust the drive signals for at least a subset of the set of drivers based at least in part on a distortion margin in at least the subset of the drivers, where the distortion margin is based at least in part on the drive signals, a distortion threshold of at least the subset of the drivers and a volume setting. Next, based at least in part on the adjusted drive signals, the electronic device may output, using the set of drivers, the sound corresponding to the audio content.

Abstract: An electronic device that performs volume normalization is described. Based at least in part on information about an environment, which may include a second electronic device, the electronic device may determine a location of at least an individual relative to a location of the second electronic device. Then, based at least in part on the determined location, the electronic device may calculate a volume setting of a speaker in the second electronic device. For example, the volume setting may increase as a distance between the location of the individual and the location of the second electronic device increases. Alternatively or additionally, the volume setting may be based at least in part on a size of a display device in the environment. Next, the electronic device may provide audio content and second information specifying the volume setting for the second electronic device.

Abstract: An electronic device that dynamically adapts sound based at least in part on spatial information determined from ambient or background sound is described. Based at least in part on sound measurements corresponding to ambient noise in an environment, which may include a second electronic device, the electronic device may determine a characteristic of the environment. For example, the characteristic may include: a size of the environment, an acoustic mode of the environment and/or a reverberation time of the environment, which is associated with at least a frequency. Then, based at least in part on the determined characteristics, the electronic device may calculate an acoustic radiation pattern. Next, the electronic device may provide audio content and second information specifying the acoustic radiation pattern for the second electronic device.

Abstract: An electronic device that reduces relative drift is described. In particular, an interface circuit in the electronic device may calculate, based on differences between transmit times when packets were transmitted by a second electronic device and receive times of the packets, relative drift as a function of time between a clock in the interface circuit and a second clock in the second electronic device. Then, the interface circuit may adjust, based on the relative drift, a clock circuit that provides the clock to eliminate the relative drift, and may store the adjustments to the clock circuit. Furthermore, when a wireless reset occurs, the interface circuit may adapt the clock circuit based on the stored adjustments to reduce the relative drift while the interface circuit restores frequency lock with the second clock based on additional packets with additional transmit times that are received from the second electronic device.

Abstract: An electronic device that dynamically adapts sound based at least in part on environmental characterization is described. Based at least in part on information about an environment, which may include a second electronic device, the electronic device may determine a change in a characteristic of the environment. For example, the change in the characteristic may include a change in a reverberation time of the environment, which is associated with at least a frequency. Then, based at least in part on the determined change in the characteristic, the electronic device may calculate an acoustic radiation pattern, where the calculated acoustic radiation pattern reduces an effect of the change in the characteristic on sound in the environment. Next, the electronic device may provide audio content and second information specifying the acoustic radiation pattern for the second electronic device.

Abstract: An electronic device that provides closed-loop adaptation of 3D sound or a sound field is described. Based at least in part on information about an environment, the electronic device may determine a location of at least an individual relative to location of the second electronic device. Then, based at least in part on the determined location and a predefined acoustic response of the second electronic device, the electronic device may calculate an acoustic radiation pattern of the second electronic device. This acoustic radiation pattern may have a beam with a principal direction corresponding to the determined location, and the acoustic radiation pattern may, at least in part, limit sound distortion of the second electronic device when the second electronic device outputs audio content using the acoustic radiation pattern. Next, the electronic device may provide the audio content and second information specifying the acoustic radiation pattern for the second electronic device.

Abstract: A portable electronic device with a touch-sensitive display (such as a cellular telephone) provides a wireless remote control for an entertainment device (such as a consumer-electronic device). Based on device-state information that specifies a current state of the entertainment device (which is received from an audio/video (A/V) hub that communicates with the entertainment device) and one or more related states of the entertainment device, the portable electronic device may generate a user interface that includes one or more virtual command icons. Note that the one or more related states are related to the current state in a state diagram by corresponding operations that transition the entertainment device from the current state to the one or more related states. Then, the portable electronic displays the user interface on the touch-sensitive display. In this way, the portable electronic device dynamically adapts the user interface.

Abstract: A portable electronic device with a touch-sensitive display (such as a cellular telephone) provides a wireless remote control for an entertainment device (such as a consumer-electronic device). Based on device-state information that specifies a current state of the entertainment device (which is received from an audio/video (A/V) hub that communicates with the entertainment device) and one or more related states of the entertainment device, the portable electronic device may generate a user interface that includes one or more virtual command icons. Note that the one or more related states are related to the current state in a state diagram by corresponding operations that transition the entertainment device from the current state to the one or more related states. Then, the portable electronic displays the user interface on the touch-sensitive display. In this way, the portable electronic device dynamically adapts the user interface.

Abstract: An electronic device that performs automatic de-baffling is described. Based at least in part on information corresponding to a boundary of an environment (which may be acquired by a sensor, such as a microphone or an image sensor), the electronic device may determine a location of the boundary, which is proximate to the electronic device. Then, based at least in part on the location, the electronic device may calculate a modified acoustic radiation pattern of the electronic device, where a superposition of the modification acoustic radiation pattern and acoustic reflections from the boundary approximately matches a target acoustic radiation pattern of the electronic device. Next, using the modified acoustic radiation pattern, the electronic device may output sound corresponding to audio content from a set of drivers.

Abstract: In response to receiving user-interface activity information from a portable electronic device that specifies user selection of a content source, an audio/video (A/V) hub provides a request for high-definition multimedia-interface (HDMI) content to the content source based on the user selection. When the A/V hub receives the HDMI content from the content source, the A/V hub provide the HDMI content and display instructions to an A/V display device as frames with the HDMI content are received from the content source, so that the HDMI content is displayed in a tiled window on the display in the A/V display device while other HDMI content from another content source is displayed on the display.

Abstract: A computer system may receive, from an acoustic transducer and/or a portable electronic device, information specifying one or more desired operations that are to be performed. This information may include natural language describing the one or more desired operations. In response, the computer system may transform the natural language into the one or more desired operations, and may identify a subset of the electronic devices based on the one or more desired operations and a predetermined supervised learning model that relates desired operations and the electronic devices. Next, the computer system may determine a set of commands based on the one or more desired operations and the subset of the electronic devices, and the computer system may provide the set of commands to the identified subset of the electronic devices, which may perform the one or more desired operations.

Abstract: A loudspeaker diaphragm (12) comprising a woven fibre body supports damping material (25), for example PVA polymer, on a rearward-facing surface (24). The woven fibre body may be formed of lengths (14) non-metallic fibre material (for example glass fibre) coating with a thin metal coating (32). The mass of the layer of damping material (25) may be less than the mass of the woven fibre body. An attractive sparkly looking loudspeaker diaphragm (12) may thus be provided which damps undesirable vibration whilst providing a flatter frequency-response curve (50).

Abstract: An electronic device that reduces relative drift is described. In particular, an interface circuit in the electronic device may calculate, based on differences between transmit times when packets were transmitted by a second electronic device and receive times of the packets, relative drift as a function of time between a clock in the interface circuit and a second clock in the second electronic device. Then, the interface circuit may adjust, based on the relative drift, a clock circuit that provides the clock to eliminate the relative drift, and may store the adjustments to the clock circuit. Furthermore, when a wireless reset occurs, the interface circuit may adapt the clock circuit based on the stored adjustments to reduce the relative drift while the interface circuit restores frequency lock with the second clock based on additional packets with additional transmit times that are received from the second electronic device.