There is provided a smart audio system including multiple audio devices and a central server. The central server confirms a model of every audio device and a position thereof in an operation area in a scan mode. The central server confirms a user position or a user state to accordingly control output power of a speaker of each of the multiple audio devices in an operation mode.

A wireless speaker audio system configured to receive audio information wirelessly transmitted by an audio source including first and second wireless transceivers. The first wireless transceiver establishes a bidirectional secondary wireless link with the audio source for receiving and acknowledging receipt of the audio information. The first and second wireless transceivers communicate with each other via a primary wireless link. A wireless audio system including an audio source and first and second wireless transceivers. The first and second wireless transceivers communicate via a primary wireless link. The audio source communicates audio information to the first wireless transceiver via a secondary wireless link which is configured according to a standard wireless protocol. The first wireless transceiver is configured to acknowledge successful reception of audio information via the secondary wireless link. Other embodiments are also described and claimed.

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 sound output device of the present disclosure includes a controller, a power amplifier, a low-pass filter, and a speaker. The controller includes first and second low-pass filters configured to remove high-frequency components of a sound input signal and a sound output signal, a first peak detection unit configured to detect a peak current of the sound input signal from which the high-frequency component has been removed, a second peak detection unit configured to detect a peak current of the sound output signal from which the high-frequency component has been removed, and a comparison unit configured to compare the peak current with the peak current and determine connection or disconnection of the speaker when a level of the peak current is equal to or higher than a certain level.

The present disclosure provides a playing device and a playing method based on the playing device. The playing device includes a headphone interface circuit and a speaker circuit. Signal input terminals of the headphone interface circuit and the speaker circuit are directly connected to a sound source output terminal of the playing device. The signal input terminal of the speaker circuit is connected to a first enable signal output terminal when the first enable signal output terminal outputs a matched enable signal, a sound source signal output from the sound source output terminal is played by the speaker circuit. The signal input terminal of the headphone interface circuit is connected to a second enable signal output terminal. When a headphone is inserted and the second enable signal output terminal outputs a matched enable signal, a sound source signal output from the sound source output terminal is played by the headphone.

A content output device includes at least one processor and at least one communicator. The at least one communicator is configured to output a plurality of channels from the at least one processor to a plurality of audio devices signals. When the number of audio devices increases and at least one additional channel is available to be reproduced, the assigning task assigns the at least one additional channel to the increased number of audio devices and the outputting task outputs the at least one additional channel in accordance with the changed assignment of the plurality of channels.

An audio service module is communicatively connected to an audio abstraction module. The audio abstraction module is communicatively connected to a codec driver. The codec driver is communicatively connected to a codec chip. The audio service module receives a headset insertion/removal message and sends the message to the audio abstraction module. The audio abstraction module determines a digital-to-analog converter DAC channel configuration policy in the codec chip based on the headset insertion/removal message, and sends the DAC channel configuration policy to the codec driver. A DAC channel is used to transmit earpiece or headset data, and transmit motor data to a class-D amplifier to drive the motor. The codec driver controls the codec chip to reconfigure the DAC channel based on the DAC channel configuration policy.

The method disclosed herein provides for performing user authentication and maintaining user authentication and access to a second device based on the user maintaining control of a first device. The user's continued control may be based on determining the user's continued possession of the first device from the authentication to a pairing with the second electronic device which then causes a second security component executing on the second electronic device to change the second electronic device to an unlocked state.

An integrated cinema amplifier comprises a power supply stage that distributes power over a plurality of channels for rendering immersive audio content in a surround sound listening environment. The amplifier automatically detects maximum and net power availability and requirements based on audio content by decoding audio metadata and dynamically adjusts gains to each channel or sets of channels based on content and operational/environmental conditions. A power supply stage provides power to drive a plurality of channels corresponding to speaker feeds to a plurality of speakers. The amplifier has a front panel having an LED array with each LED associated with a respective channel or group of channels of the multi-channel amplifier, and a control unit configured to light the LEDs according to display patterns based on operating status or error conditions of the amplifier.

A microphone device generates a transmit audio stream via at least one microphone on the microphone device. The microphone device transmits the transmit audio stream to the computing device via a first wireless connection and ignores a receive audio stream received from the computing device via the first wireless connection. The speaker device obtains a set of connection parameters for the first wireless connection between the microphone device and the computing device, intercepts the receive audio stream transmitted using the first wireless connection from the computing device to the microphone device, and plays the receive audio stream on a speaker of the speaker device.