In embodiments of an audio control module (318), audio data (310) is received from an audio data source (314) for output to an audio rendering device (316). An initialization input (326) can be received from a wireless audio headset (320) and, responsive to receiving the initialization input, the audio data (328) is communicated to the audio headset. The audio that would be generated from the audio data (322) at the audio rendering device (316) is also limited, such as by replacing the audio data (322) with null audio data, clearing audio data packets from the audio data (322), or by asserting a mute signal (336) to the audio rendering device.

A method for controlling a display apparatus includes: based on a communication connection with an audio device being established through a first interface, transmitting, to the audio device, audio setup information of the display apparatus; based on receiving a first audio signal comprising a plurality of channels from an external server, transmitting a second audio signal comprising the plurality of channels to the audio device; receiving, from the audio device, a third audio signal comprising a height channel obtained from the second audio signal based on the audio setup information of the display apparatus; and outputting the received third audio signal.

The Bluetooth device (DEV) controlling a plurality of wireless audio devices, comprises: a wireless communication circuit, to receive a wireless audio device identifier from each wireless audio device; a sound processing circuit to apply independent audio effects on a main audio stream such that the sound processing circuit outputs as many modified audio streams as the wireless communication circuit has received identifiers of wireless audio devices, on the basis of the characteristics of each wireless audio device; an allocation circuit to allocate each modified audio stream to a respective wireless audio device, a transmission circuit to wirelessly transmit through a Bluetooth usage each modified audio stream to said respective wireless audio device for emission by the wireless audio devices.

A sound bar system and method of use are disclosed. The sound bar system, in various embodiments, includes a tubular hollow housing, two woofers, two speaker assemblies, and two baffles. The tubular hollow housing includes two terminal circular openings, one at each end of the tubular hollow housing, and an interior passage that extends between the two terminal circular openings. Each terminal circular opening receives one of the woofers. The tubular hollow housing also includes two speaker assembly openings that each extend from an outer surface of the tubular hollow housing to the interior passage. Each speaker assembly opening receives one of the speaker assemblies. The baffles are located inside the interior passage, such that the baffles divide the interior passage into three isolated sound spaces. One sound space houses one woofer and one speaker assembly. Another sound space houses another woofer and another speaker assembly. The last sound space is located in between the other two sound spaces.

An audio circuit includes: a first Type-C port, a first microphone input module, and a second microphone input module; the first Type-C port includes a first pin and a second pin, the first microphone input module is connected to the first pin, and the second microphone input module is connected to the second pin; in a case that the first Type-C port and a second Type-C port of the earpiece are in a first plugging state, the first pin is connected to a third pin of the second Type-C port, and the second pin is connected to a fourth pin of the second Type-C port; and in a case that the first Type-C port and the second Type-C port are in a second plugging state, the second pin is connected to the third pin, and the first pin is connected to the fourth pin.

A speaker unit with microphone is provided. The speaker unit includes a housing, a cover, a vibration element and a microphone. The cover is assembled to the housing and forms a chamber with the housing. The cover has at least one audio hole. The vibration element is disposed in the chamber for generating sound toward the cover. The microphone is fixed on the cover and outside the chamber.

In embodiments of an audio control module (318), audio data (310) is received from an audio data source (314) for output to an audio rendering device (316). An initialization input (326) can be received from a wireless audio headset (320) and, responsive to receiving the initialization input, the audio data (328) is communicated to the audio headset. The audio that would be generated from the audio data (322) at the audio rendering device (316) is also limited, such as by replacing the audio data (322) with null audio data, clearing audio data packets from the audio data (322), or by asserting a mute signal (336) to the audio rendering device.

A portable multimedia device includes: An enclosure; a wireless communication element enclosed within the enclosure, the wireless communication element able to receive audio data from a mobile device; a pair of speakers enclosed within the enclosure that are able to generate an audio output based on the audio data received from the mobile device or directly from the head units internal radio and its external antenna; and a set of external connection ports. Also within the enclosure; a battery pack charger board, able to charge the battery pack converted from household power, which sends the electricity necessary to power the head unit and speakers. A light on the charger's circuit board within the enclosure is able to light up as a nightlight. Exterior and configured to be secured to the enclosure: Mobile device holding bays that are able to carry or hold mobile devices onto the boombox system; a carry handle antenna that is able to improve reception and able to carry the boombox and a mobile device simultaneously; a carry strap able to carry the boombox and a mobile device simultaneously; a switch that is able to provide electricity to the stereo, its memory and to the speakers from the battery pack; and speakers configured to be secured to the pipe which are covered by speaker covers configured to slide onto the pipe; and speaker screens that are configured to slide into the covers.

There is disclosed an audio recorder that automatically determines, when preset microphones are configured to be detachable and different microphones are attached to the same jacks, whether or not the different microphones are in-house microphones, and automatically determines which of the X-Y technique or the A-B technique is used as the attachment technique. Holders in the audio recorder include a switch structure in which, in cases where the different microphones are attached in place of the preset microphones, a contact is turned on only when the different microphones are in-house microphones. Further, a main body unit includes a processor that, when the contact in the switch structure is turned on, automatically determines which of the X-Y technique or the A-B technique is used based on a voltage value of a certain terminal in a plug of the different microphones.

An electronic module can include a first housing defining a threaded bore and a shaft; a power supply driving module positioned within the first housing; a speaker positioned within the first housing, the speaker connected in electrical communication with the power supply driving module; a first concentric terminal connected in electrical communication with the power supply driving module, the first concentric terminal extending at least partially through the shaft, the first concentric terminal configured to rotatably connect in electrical communication with a second concentric terminal to supply power to the power supply driving module; and an auxiliary concentric terminal connected in electrical communication with the first concentric terminal, the auxiliary concentric terminal positioned at least partially within the threaded bore to define a power receptacle, the power receptacle configured to connect with and supply power to a second electronic module.