A voice-controlled electronic device that includes a device housing having a longitudinal axis bisecting opposing top and bottom surfaces and a side surface extending between the top and bottom surfaces. The device can further include one or more microphones disposed within the device housing and distributed radially around the longitudinal axis; a processor configured to execute computer instructions stored in a computer-readable memory for interacting with a user and processing voice commands received by the one or more microphones and first transducer and second transducers configured to generate sound waves within different frequency ranges.

Various implementations include audio devices and components of such devices. Certain implementations include an audio device with a sealing member for providing a substantially water resistant seal. Certain additional implementations include an audio device with an internal heat sink for transferring heat away from device components such as a control module.

Voice responsive in-wall devices are provided. In one example implementation, a power switch includes a housing mountable on or at least partially within a surface. The housing can have a front panel. The power switch can include an interface element disposed on the front panel and operable to receive a user input. The power switch can include a power interrupter operable to control power delivery to the powered load based at least in part on interaction with the interface element. The power switch can include one or more microphones operable to obtain audio input. The power switch can include one or more speakers configured to provide audio output. The power switch can include a communications interface operable to communicate data associated with the audio input over a communication link.

A fixed speaker system comprising a speaker housing mountable in or to a ceiling, wall or floor; at least one speaker for outputting audio content, wherein each speaker comprises at least one speaker input and at least one speaker output; a processor configured to receive the or each speaker input and generate the or each speaker output; an amplifier coupled to the processor and configured to drive the speaker; a DC power input configured for direct electrical coupling with a mains power source; a power-over-ethernet (POE) interface module, comprising an interface housing that is removably connected to the speaker housing, wherein the module is configured to input power from a POE source to the DC power input.

According to one example, an audio door system includes a door, an audio system, an amplifier, and an exciter. The audio system is coupled to the door. The amplifier is coupled to the door, and is electrically coupled to the audio system. The exciter is coupled to the door, and is electrically coupled to the amplifier. The exciter can transform an audio electrical signal into mechanical energy, and can further cause a surface of the door to transform the mechanical energy into one or more acoustic sound waves.

The present disclosure is applicable to the technical field of massage apparatuses, and provides a Bluetooth music face pillow. The Bluetooth music face pillow includes face pillow sponge, a speaker, an audio wire, a Bluetooth battery compartment, a circuit board, a rechargeable battery and an audio terminal; at least two speakers are configured inside the face pillow sponge; when the user plays an audio file with the mobile phone, the circuit board acquires an audio signal of the mobile phone of the user through Bluetooth and amplifies the audio signal of the mobile phone; the amplified audio electric signal is supplied to the speakers through the audio terminal and the audio wire; and the audio is played back through the audio speakers.

A speaker assembly broadly comprises an inner housing, an outer shell, an input circuit, and a speaker. The inner housing includes outer shell attachment structure and a lower press-fit outer surface and forms a central chamber retaining the input circuit and the speaker. The outer shell includes a primary enclosure and a lower cap. The primary enclosure includes inner housing attachment structure configured to align with and engage the outer shell attachment structure. The primary enclosure is configured to be press-fit to the inner housing via the lower press-fit outer surface of the inner housing. The lower cap encloses a bottom end of the central chamber. The outer shell is interchangeable with other outer shells having different shapes than the outer shell of the speaker assembly.

An audio playing apparatus, an audio playing method, and an electronic device are provided. The audio playing apparatus includes: a power amplifier module; a switch, where an input end of the switch is connected to the power amplifier module; a first noise suppression component and a second noise suppression component, where the first noise suppression component is connected to a first output end of the switch, and the second noise suppression component is connected to a second output end of the switch; and a speaker module, connected to the first noise suppression component and the second noise suppression component. In a case that the speaker module is separately in a receiver mode and a speaker mode, the input end of the switch is separately connected to the first output end and the second output end of the switch.

A magnetically attractable Bluetooth speaker is disclosed, including a speaker housing, a loudspeaker, a control circuit board, and a magnet. The loudspeaker is electrically connected to the control circuit board. The speaker housing includes a limiting part for securing the magnet. The magnet is fixedly arranged in the limiting part, and the magnet is arranged outside the magnetic circuit range of the loudspeaker. With such a structure, by arranging the magnet in the speaker housing, the user experience of the speaker can be greatly improved, so that the user can place it in different manners depending on their different needs. Compared with the traditional ordinary speakers that can only be placed on a horizontal plane or a surface with a small slope, the speaker provided by the present disclosure has better flexibility in use.

Systems and methods increase power efficiency in communication systems by examining a digital signal to determine whether a threshold corresponding to an increase in a power requirement is likely to be exceeded. The signal is encoded with information indicating the likely change and communicated to a driver that, upon extracting the information, uses it to cause instruct an amplifier to increase a power output to accommodate the increase in power requirement. Once the threshold is no longer exceeded, the driver circuit, advantageously, decreases the power output to conserve energy. In various embodiments, an amplifier may increase power efficiency by switching from a low-power circuit configuration to a high-circuit configuration.