An apparatus including an interface and a processor. The interface may be configured to receive video frames corresponding to an interior of a vehicle. The processor may be configured to perform video operations on the video frames to detect objects in the video frames, detect one or more passengers based on the objects detected in the video frames, determine a location of each of the passengers detected, determine which of the passengers may be an audio source and generate a control signal in response to the audio source. The control signal may be configured to adjust an input of a microphone towards the audio source. The video operations may be used to determine the location and the audio source.

A microphone module comprises a housing, an audio bus, and a first plurality of microphones in communication with the audio bus. The microphone module further comprises a module processor in communication with the first plurality of microphones and the audio bus. The module processor is configured to detect the presence of an array processor in communication with the audio bus, detect the presence of a second microphone module in communication with the audio bus, and configure the audio bus to pass audio signals from both the first plurality of microphones and the second microphone module to the array processor.

A microphone array system or microphone array unit for a conference system is provided that includes a front board, side walls and a plurality of microphone capsules arranged in or on the front board mountable on or in a ceiling of a conference room. The microphone array system or unit is adapted for generating a steerable beam within a maximum detection angle range. The microphone array system or microphone array unit includes a processing unit which is configured to receive the output signals of the microphone capsules and to steer the beam based on the received output signal of the microphone array. The processing unit is configured to control the microphone array to limit the detection angle range to exclude at least one predetermined exclusion sector in which a noise source is located.

Systems, apparatus, and methods for processing audio signals associated with conferencing devices communicatively connected in a daisy-chain configuration using local connection ports included on each device are provided. One method involving a first conferencing device comprises receiving auxiliary mixed microphone signal(s) from at least one other conferencing device via at least one local connection port, each auxiliary signal comprising a mix of microphone signals captured by the at least one other conferencing device; determining a gain adjustment value for each auxiliary mixed microphone signal based on a daisy-chain position of the at least one other conferencing device relative to the position of the first conferencing device; adjusting a gain value for each auxiliary mixed microphone signal based on the corresponding gain adjustment value; generating a loudspeaker output signal from the gain-adjusted auxiliary mixed microphone signal(s); and providing the loudspeaker signal to the loudspeaker of the first conferencing device.

A method, apparatus and computer program product enhance audio quality during a voice communication session, enhancing audio quality for a device of a remote user. The apparatus can comprise a processor, a memory, and a computer program code, and can be configured to receive and weight audio signals based on signal attributes such that audio signals can be adjusted and adjusted signals mixed to form a composite audio signal. In a method, a processor receives audio signals from audio sensors around a room, selects one or more audio signals based on audio signal attributes, and adjusts or causes the adjustment of the one or more audio signals based on the audio signal attributes. The method can also include causing the adjusted audio signals to be mixed to form a composite signal, and causing the composite signal to be communicated to a device of a remote user.

For a multiple microphone system, a phase response mismatch may be corrected. One embodiment includes receiving audio from a first microphone and from a second microphone, the microphones being coupled to a single device for combining the received audio, recording the received audio from the first microphone and the second microphone before combining the received audio, detecting a phase response mismatch in the recording at the device between the audio received at the second microphone and the audio received at the first microphone, if a phase response mismatch is detected, then estimating a phase delay between the second microphone and the first microphone, and storing the estimated phase delay for use in correcting the phase delay in received audio before combining the received audio.

A method, apparatus and computer program product enhance audio quality during a voice communication session, enhancing audio quality for a device of a remote user. The apparatus can comprise a processor, a memory, and a computer program code, and can be configured to receive and weight audio signals based on signal attributes such that audio signals can be adjusted and adjusted signals mixed to form a composite audio signal. In a method, a processor receives audio signals from audio sensors around a room, selects one or more audio signals based on audio signal attributes, and adjusts or causes the adjustment of the one or more audio signals based on the audio signal attributes. The method can also include causing the adjusted audio signals to be mixed to form a composite signal, and causing the composite signal to be communicated to a device of a remote user.

Systems, apparatus, and methods for processing audio signals associated with conferencing devices communicatively connected in a daisy-chain configuration using local connection ports included on each device are provided. One method involving a first conferencing device comprises receiving auxiliary mixed microphone signal(s) from at least one other conferencing device via at least one local connection port, each auxiliary signal comprising a mix of microphone signals captured by the at least one other conferencing device; determining a gain adjustment value for each auxiliary mixed microphone signal based on a daisy-chain position of the at least one other conferencing device relative to the position of the first conferencing device; adjusting a gain value for each auxiliary mixed microphone signal based on the corresponding gain adjustment value; generating a loudspeaker output signal from the gain-adjusted auxiliary mixed microphone signal(s); and providing the loudspeaker signal to the loudspeaker of the first conferencing device.

An audio signal processing method includes selecting a channel group of at least two channels according to a predetermined reference, from among audio signals of at least three channels; and controlling a gain of the audio signal of each channel of the selected channel group, according to a volume level of the audio signal of each channel of the channel group.

Embodiments of the present disclosure provide a conference sound box, a conference recording method, apparatus, system, and a computer storage medium. The conference recording method may include: receiving conference audio data copied by the conference sound box; sending the conference audio data to a voice-to-text server for text conversion; and receiving texts from the voice-to-text server. In this way, the conference sound box, the conference recording method, apparatus, system, and the computer storage medium according to the embodiments of the present disclosure could conveniently realize text conversion of conference voices and automatic conference recording, thereby improving work efficiency and reducing resource waste.