A measurement system includes earphones configured to be worn on left and right ears of a user respectively and a wireless terminal. The earphones measure and accumulate usage time during the earphones are used by a user, and transmit accumulated usage time to the wireless terminal. The wireless terminal acquires the accumulated usage time from the earphones, determines whether the accumulated usage time exceeds predetermined time, and generates a notification for urging the user to clean the earphones when it is determined that the accumulated usage time exceeds the predetermined time.

A device, system, and method for microphonic noise compensation is provided. The device comprises: a speaker; a receiver; an audio processor configured to: process audio received via the receiver; and output processed audio to the speaker; a microphonic detection engine; and a microphonic compensation engine. The microphonic detection engine configured to: search for microphonic noise in the processed audio according to one or more predetermined microphonic parameters; and when the microphonic noise is detected: output a microphonic indicator to the microphonic compensation engine to cause the microphonic compensation engine to compensate for the microphonic noise in the audio. The microphonic compensation engine configured to: receive the microphonic indicator; and responsively compensate for the microphonic noise in the audio received via the receiver, prior to processing of the audio by the audio processor.

Provided is a multifunctional image-shooting and sound-receiving device, including a controller, a built-in microphone, a switching unit, an adjustment unit, a drive unit, a sensor and a motor. The built-in microphone is connected to the controller and receives at least one microphone sound signal. The switching unit is connected to and transmits a switching signal to the controller. The adjustment unit is connected to and transmits an adjustment signal to the controller. The drive unit is connected to and receives a drive control signal from the controller. The sensor is connected to and receives a sensing control signal from the controller, and transmits sensing information thereto. The motor is connected to and receives a driving signal from the drive unit, and integrated with a lens. The controller switches the multifunctional image-shooting and sound-receiving device to one of a first mode and a second mode according to the switching signal.

The present disclosure relates to a method and system for calibrating a loudspeaker system in an environment (1). The loudspeaker system comprises an audio device (10) with a first and second loudspeaker arranged with a predetermined horizontal separation. The method comprises the steps of emitting (S2a, S2b) a first and second calibration audio signal from the first and second loudspeaker (11) of the audio device (10), wherein the second calibration audio signal is distinguishable from the first calibration audio signal. The method further comprises receiving (S3a, S3b), with a first external microphone (20) the first and second calibration audio signal, determining (S4) the position of the first external microphone (20) relative to the audio device (10) and calibrating (S8) the loudspeaker system based on the determined position of the first external microphone (20).

A method of generating a virtual microphone array according including identifying a plurality of microphones, identifying a relative position in space of each of the plurality of microphones, generating a virtual microphone array based on the plurality of microphones and the relative position in space of each of the plurality of microphones, sensing audio at each of the plurality of microphones, and generating an audio signal of the virtual microphone array based on the sensed audio.