One example discloses an apparatus for near-field magnetic induction (NFMI) based robustness, including: a first wireless device including a first wireless signal interface and a first NFMI signal interface; wherein the first wireless signal interface is configured to receive a data set from a third wireless device; wherein the first NFMI signal interface is configured to communicate with a second wireless device through a second NFMI signal interface; and wherein the first wireless device is configured to detect an error in the data set received from the third wireless device and in response to detecting the error configure the first NFMI signal interface to receive the data set from the second wireless device through the second NFMI signal interface.

A speaker assembly includes: a housing, a support mounted to the housing, and a speaker mounted to the support. The housing has a first sound outlet and a first accommodating groove in communication with the first sound outlet through a sound output channel. At least a portion of the support is disposed in the first accommodating groove, a second accommodating groove is disposed at a side of the support away from the first sound outlet, a first opening is disposed at a side of the support close to the first sound outlet, and the second accommodating groove is in communication with the sound output channel through the first opening. At least a portion of the speaker is disposed in the second accommodating groove, the speaker has a second sound outlet, and the second sound outlet is in communication with the first opening.

A method of controlling a content playing device and an electronic device performing the method are provided. The method of controlling a content playing device includes playing content on a second electronic device connected to an electronic device, identifying, by the electronic device, a third electronic device and connecting the electronic device to the third electronic device, determining whether a specialized function related to playing the content is present among functions of the second electronic device, and playing the content, played on the second electronic device, on the third electronic device.

An audio accessory with high and low impedance paths to a speaker is provided, and a radio therefor. The audio accessory comprises: a speaker; an audio interface to connect to a respective audio interface of the radio; a switching circuit comprising: high and low impedance paths; and a switch to connect the audio interface to the speaker via one of the high and low impedance paths, the switch initially connecting the audio interface to the speaker via the high impedance path. The accessory further comprises a data interface to connect to a respective data interface of the radio; and a controller to: in response to receiving, via the first data interface, from the radio, a message to control the switch to connect the audio interface to the speaker via the low impedance path, control the switch to connect the audio interface to the speaker via the low impedance path.

An audio signal output method is provided. The audio signal output method includes acquiring audio data including a plurality of audio signals corresponding respectively to a plurality of channels, applying a head-related transfer function, which localizes a sound image to a location determined for each of the plurality of channels to each of the plurality of audio signals, outputting first audio signals that have been applied with the head-related transfer functions, among the plurality of audio signals, to an earphone, and outputting the audio signal of one channel corresponding to a location that is in front of a top of a listener's head, among the plurality of audio signals, to a speaker.

An audio signal output method is provided. The audio signal output method includes acquiring audio data including an audio signal and sound source location information indicating a location of a sound source, acquiring the audio data and the sound source location information from the acquired audio data, performing sound image localization processing of a head-related transfer function on the acquired audio signal based on the acquired sound source location information, outputting the processed audio signal to an earphone, and outputting the acquired audio signal that has not been performed with sound image localization processing to a speaker, in a state where the location of the sound source indicated by the sound source location information is in a predetermined location.

A sound generator includes a housing (20), a stand (90) supporting the housing (20), a piezoelectric vibrator (60) including a piezoelectric element (61), and an anchor applying a load to the piezoelectric vibrator (60). While the load from the anchor is being applied to the piezoelectric vibrator (60), the piezoelectric vibrator (60) deforms in response to a sound signal, and deformation of the piezoelectric vibrator (60) vibrates a mounting surface (150) on which the sound generator is mounted, causing sound to be emitted from the mounting surface (150).

An electronic device and a method of controlling the electronic device are provided. The electronic device includes a main body configured to provide an accommodation space, a speaker module configured to output sound, and an accessory device configured to be accommodated in the accommodation space. In a state where the accessory device is accommodated in the accommodation space, the accessory device is configured to provide a passage that transmits the sound output from the speaker module, and in a state where the accessory device is separated from the accommodation space, the accommodation space provides the passage that transmits the sound output from the speaker module.

A mobile terminal in embodiments of the present disclosure includes a compatible circuit connected with an earphone socket, which includes: the earphone socket having input and output pins; a CODEC chip connected with earphone socket input pins determining an external device inserted into the earphone socket according to an impedance value of earphone socket input pins; an AP chip connected with CODEC chip; and an analog switch chip connected with AP chip, output pins of which are connected with earphone socket output pins, and input pins of which are connected with speaker signal output pins and earphone signal output pins of CODEC chip respectively. When the external device is an external speaker, AP chip controls the analog switch chip to output a speaker output signal, output by the CODEC, via output ports of the analog switch; when an earphone, output an earphone signal via output ports of the analog switch.

A digitally controlled microphone with audio compressor includes a capsule; a compressor circuitry having a compressor engine, a digitally controlled root mean square (RMS) detector and a digitally controlled analog processor; a bypass switch to the compressor circuitry; an analog to digital converter (ADC); a digital processor that sends digital audio to a host and receives a second digital audio signal; a digital to analog converter (DAC) and a summing circuit that combine the audio with the audio from the host and send it to a digitally-controlled headphone amplifier and a headphone jack; a microphone body; a serial host interface connector; and hardware controls on the microphone body.