Abstract: A computer-implemented method and system for performing testing of audio equipment in a conference room, the method executed by one or more processors, comprising: (a) commissioning the conference room with a set of audio video equipment, the set of audio equipment comprising one or more loudspeakers, one or more microphones, and audio signal processing equipment that includes at least an acoustic echo cancellation function; (b) determining an initial audio performance level in the conference room, and storing the initial audio performance level (IAPL); (c) determining that sound quality testing of the audio equipment in the conference room should be performed; (d) disabling the acoustic echo cancellation function in the audio equipment of the conference room such that an output from each of the one or more loudspeakers is not removed from a respective microphone output signal; (e) generating an electrical stimulus test signal and transmitting it to the one or more loudspeakers in the audio equipment of the c

Abstract: Provided are display devices and methods of driving the same. A display device may include: a display panel, a main sound generator and a sub-sound generator disposed on a surface of the display panel. The main sound generator outputs sound in a first directional mode, and each of the main sound generator and the sub-sound generator outputs sound in a second directional mode. Each directional mode may be a mode in which sound is directed towards a particular viewer's location.

Abstract: The present invention relates to a device for generating sound messages, comprising: a generation chain configured to generate a first and a second sound signal carrying a useful audio signal and a test audio signal; a conversion chain configured to transform the first and second sound signals into first and second analog signals; and a verification chain configured to extract the test audio signal from a combination of the analog signals to verify the integrity of the useful audio signal. The first sound signal corresponds to the sum of the test audio signal and the useful audio signal, and the second sound signal corresponds to the sum of the test audio signal and an opposite signal corresponding to the opposite of the useful audio signal.

Abstract: An apparatus includes a receiver and an up-mixer. The receiver is configured to receive a bitstream that includes an encoded mid signal and encoded stereo parameter information. The encoded stereo parameter information represents a first value of a stereo parameter and a second value of the stereo parameter. The first value is associated with a first frequency range. The second value is associated with a second frequency range that is distinct from the first frequency range. The up-mixer is configured to perform an up-mix operation on a frequency-domain decoded mid signal generated from the encoded mid signal. A particular value based on the first value and the second value is applied to the frequency-domain decoded mid signal during the up-mix operation.

Abstract: Disclosed is an operation method of an audio signal processing device configured to process an audio signal including a first audio signal component and a second audio signal component. The operation method includes: receiving the audio signal; normalizing loudness of the audio signal, based on a pre-designated target loudness; acquiring the first audio signal component from the audio signal having the normalized loudness, by using a machine learning model; and de-normalizing loudness of the first audio signal component, based on the pre-designated target loudness.

Abstract: An apparatus for noise reduction in audio signal processing includes a power amplifier, a zero-crossing detector, and a threshold detector. The power amplifier has an input signal terminal for receiving an audio input signal and an output signal terminal. The audio input signal is a digital-to-analog converted version according to a version of a digital audio signal. The power amplifier has an analog gain which is controllable in response to an analog gain control signal. The zero-crossing detector determines a zero-crossing detection signal according to an internal signal provided between the input signal terminal and the output signal terminal. The threshold detector determines a gain setting according to the digital audio signal and the zero-crossing detection signal to generate the analog gain control signal indicating the gain setting, wherein the threshold detector controls the analog gain of the power amplifier according to the analog gain control signal.

Abstract: Methods and systems for actively and adaptively cancelling the noise and vibration generated by medical devices. A method includes receiving data from one or more sensors of a medical device. The method includes determining a signature signal for the medical device based at least on the data. The signature signal is a representation of one or more physical byproducts of the medical device, and one or more environmental conditions of a physical environment proximate to the medical device. The method incudes determining an inverted signal based on the signature signal, the inverted signal configured to mask the signature signal. The method includes generating a physical representation of the inverted signal by one or more electrical or electromechanical components of the medical device, and masking the signature signal with the inverted signal.

Abstract: A device can include a microphone, a memory configured to store a sound source table including correspondence relationships among boarding items, virtual sound items and filter set values, and a processor configured to receive a sound signal through the microphone and determine a first filter set value matching characteristics of the received sound signal using the sound source table.

Abstract: An ear-and-eye mask (10) is provided comprising a noise-attenuation-and-generation assembly (46) having a digital domain, the noise-attenuation-and-generation assembly comprising, in the digital domain, a noise cancelling-circuit (48) and a noise masking circuit (64), wherein the noise-cancelling circuit (48) receives an input from an audio capture device (56) thereof which communicates with the noise masking circuit (64). An adaptive spectral noise analyser and generator is provided which determines an unwanted remnant signal comprising the leftover unwanted frequency and/or volume after noise cancellation, and wherein the noise attenuation-and-generation assembly (46) then determines and generates a compensation frequency and/or volume for countering this unwanted remnant signal following noise attenuation for output by a speaker (36) through a stem (40) direct to the user's ears.

Abstract: A method for reducing gain for audio amplification by an audio system having a tweeter channel, an optional midrange channel, and a woofer channel. Gain of the woofer channel is reduced simultaneously with reducing gain of the tweeter channel, both responsive to detecting the same instance of overloading (overdriving) the woofer channel. Other aspects are also described and claimed.

Abstract: An earphone includes a main body and a stabilizer. The stabilizer is movably disposed on the main body and has a stored position and at least one sticking out position. When the stabilizer is in the stored position, the stabilizer covers part of a contour of the main body. When the stabilizer is in the at least one sticking out position, part of the stabilizer sticks out the main body and is spaced apart from the main body by a specific distance.

Abstract: Exemplary embodiments provide encoding and decoding methods, and associated encoders and decoders, for encoding and decoding of an audio scene which is represented by one or more audio signals. The encoder generates a bit stream which comprises downmix signals and side information which includes individual matrix elements of a reconstruction matrix which enables reconstruction of the one or more audio signals in the decoder.

Abstract: Apparatus including a processor configured to: obtain at least two microphone audio signals; determine spatial metadata transmit and/or store the spatial metadata and at least one of: at least one of the at least two microphone audio signals, at least one microphone audio signal from at least one second microphone configured to capture at least part of a same sound scene captured with the at least one first microphone, or at least one signal based, at least partially, on the at least two microphone audio signals, wherein the transmitting and/or storing is configured to enable synthesis of a plurality of spherical harmonic audio signals.

Abstract: The present disclosure relates to reverberation generation for headphone virtualization. A method of generating one or more components of a binaural room impulse response (BRIR) for headphone virtualization is described. In the method, directionally-controlled reflections are generated, wherein directionally-controlled reflections impart a desired perceptual cue to an audio input signal corresponding to a sound source location. Then at least the generated reflections are combined to obtain the one or more components of the BRIR. Corresponding system and computer program products are described as well.

Abstract: A downmixer for downmixing at least two channels of a multichannel signal having the two or more channels includes: a processor for calculating a partial downmix signal from the at least two channels; a complementary signal calculator for calculating a complementary signal from the multichannel signal, the complementary signal being different from the partial downmix signal; and an adder for adding the partial downmix signal and the complementary signal to obtain a downmix signal of the multichannel signal.

Abstract: A method of cough detection in a headset, the method comprising: receiving a first signal from an external transducer of the headset; receiving a second signal from an in-ear transducer of the headset; and detecting a cough of a user of the headset based on the first and second signals.

Abstract: A system and method for automatically and dynamically controlling the output (e.g., volume) of an audio headphone device is disclosed, which includes detecting the invocation of the acoustic reflex with an audio headphone device. The disclosed system can measure the response of the tympanic membrane and middle ear to various SPL and frequencies. That information may be used for automated or customized warning or limiting levels either within the headphone, or at the audio playback device.

Abstract: Methods and apparatuses of providing and receiving audio content are described. The method of providing audio content includes receiving a first audio content from a first user, processing the first audio content based on a first viewing direction for the first user facing at least one section of an audiovisual content and on a second viewing direction for a second user facing at least one section of the audiovisual content, and providing the processed first audio content. The audiovisual content may be an immersive reality content. A computer-readable storage medium, computer program and a non-transitory article of manufacture are described.

Abstract: A vehicle device may receive audio data and other vehicle data associated with a vehicle and may transform the audio data to transformed audio data in a frequency domain. The vehicle device may segment the transformed audio data into a plurality of audio segments and may process the plurality of audio segments, with different feature extraction techniques, to extract a plurality of feature vectors. The vehicle device may merge the plurality of feature vectors into a merged feature vector and may create an audio signature for the audio data based on the merged feature vector. The vehicle device may process the audio signature and the other vehicle data, with a model, to determine a classification of the audio signature and may perform one or more actions based on the classification of the audio signature.

Abstract: A method of preventing loss of headphones configured to communicate with a cell phone enables an alarm setting using an app on the cell phone; the app responding by continuously measuring a received magnitude of a wireless signal transmitted between the cell phone and the headphones. If the measured received magnitude is lower than a predetermined threshold value for a first predetermined time, an audible alarm is activated at the headphones. The continuous measurement and the activation of the alarm dependent on the measured received magnitude occur automatically, independent of any user interaction with the app after the alarm setting enablement. Another method addresses a corresponding issue in a similar way to prevent loss of one earbud of a pair.