Abstract: An audio system for providing content to a user. The system includes a first and a second transducer assembly of a plurality of transducer assemblies, an acoustic sensor, and a controller. The first transducer assembly couples to a portion of an auricle of the user's ear and vibrates over a first range of frequencies based on a first set of audio instructions. The vibration causes the portion of the ear to create a first range of acoustic pressure waves. The second transducer assembly is configured to vibrate over a second range of frequencies to produce a second range of acoustic pressure waves based on a second set of audio instructions. The acoustic sensor detects acoustic pressure waves at an entrance of the ear. The controller generates the audio instructions based on audio content to be provided to the user and the detected acoustic pressure waves from the acoustic sensor.

Abstract: An audio system presented herein includes a transducer array, a sensor array, and a controller. The transducer array presents audio content to a user. The controller controls the transducer array to adjust a level of tactile content imparted to the user via actuation of at least one transducer in the transducer array while presenting the audio content to the user. The audio system can be part of a headset.

Abstract: The disclosed computer-implemented method may include (1) receiving, at a first device, a first stream that includes first media data from a first media object, (2) receiving, at the first device, a second stream that includes second media data from a second media object, (3) mixing, at the first device, the first media data and the second media data into a third stream, (4) compiling, while mixing the third stream, a metadata stream that includes information enabling separation of the first media data and the second media data from the third stream, (5) transmitting, from the first device to a second device, the third stream, and (6) transmitting, from the first device to the second device, the metadata stream to enable the second device to separate the first media data and the second media data from the third stream. Various other methods, systems, and computer-readable media are also disclosed.

Abstract: An audio system includes a transducer assembly, an audio sensor, and a controller. The transducer assembly is coupled to a back of an auricle of an ear of the user. The transducer assembly vibrates the auricle over a frequency range to cause the auricle to create an acoustic pressure wave in accordance with vibration instructions. The acoustic sensor detects the acoustic pressure wave at an entrance of the ear of the user. The controller dynamically adjusts a frequency response model based in part on the detected acoustic pressure wave, updates the vibration instructions using the adjusted frequency response model, and provides the updated vibration instructions to the transducer assembly.

Abstract: An audio system for a wearable device dynamically updates acoustic transfer functions. The audio system is configured to estimate a direction of arrival (DoA) of each sound source detected by a microphone array relative to a position of the wearable device within a local area. The audio system may track the movement of each sound source. The audio system may form a beam in the direction of each sound source. The audio system may identify and classify each sound source based on the sound source properties. Based on the DoA estimates, the movement tracking, and the beamforming, the audio system generates or updates the acoustic transfer functions for the sound sources.

Abstract: An ear-plug assembly presents audio content to an ear canal of a user. The audio content may be based in part on sound in a local area surrounding the user. The ear-plug assembly detects, via one or more acoustic sensors, sound in the area around the user. The sound waves travel through an aperture in a body of the ear-plug assembly and are propagated to a waveguide to the one or more acoustic sensors. The ear-plug assembly processes the detected sound data in a controller, which instructs a speaker assembly to present audio content based in part on the detected sound data. The detected sounds may be amplified, attenuated, filtered, and/or augmented when presented by the speaker assembly.

Abstract: A system may include at least one audio transducer and a controller. The controller may generate at least one actuation signal. The at least one actuation signal may drive the at least one audio transducer such that the at least one audio transducer generates evanescent wave audio signals in proximity to a wearer's ear. The evanescent wave audio signals may decay in strength with distance from the at least one audio transducer. Various other apparatuses, systems, and methods are also disclosed.

Abstract: An audio system for providing content to a user. The system includes a first and a second transducer assembly of a plurality of transducer assemblies, an acoustic sensor, and a controller. The first transducer assembly couples to a portion of an auricle of the user's ear and vibrates over a first range of frequencies based on a first set of audio instructions. The vibration causes the portion of the ear to create a first range of acoustic pressure waves. The second transducer assembly is configured to vibrate over a second range of frequencies to produce a second range of acoustic pressure waves based on a second set of audio instructions. The acoustic sensor detects acoustic pressure waves at an entrance of the ear. The controller generates the audio instructions based on audio content to be provided to the user and the detected acoustic pressure waves from the acoustic sensor.

Abstract: An audio system for customizing sound fields for increased user privacy. A microphone array of a headset detects sounds from one or more sound sources in a local area of the headset. The audio system estimates array transfer functions (ATFs) associated with the sounds, and determines determining sound field reproduction filters for a loudspeaker array of the headset using the ATFs. The audio system presents audio content, via the loudspeaker array, based in part on the sound field reproduction filters. The presented audio content has a sound field that has a reduced amplitude in a first damped region of the local area that includes a first sound source of the one or more sound sources.

Abstract: A technique for subband-based audio calibration includes receiving a first audio signal captured at a microphone and a second audio signal provided to a speaker. The technique continues by synchronizing the second audio signal with the first audio signal to generate a synchronized audio signal and transforming the synchronized audio signal to a first subband representation and the first audio signal to a second subband representation. The technique then includes calculating a transfer function associated with the speaker and the microphone based on the first subband representation and the second subband representation.

Abstract: The disclosed computer-implemented method may include applying, via a sound reproduction system, sound cancellation that reduces an amplitude of various sound signals. The method further includes identifying, among the sound signals, an external sound whose amplitude is to be reduced by the sound cancellation. The method then includes analyzing the identified external sound to determine whether the identified external sound is to be made audible to a user and, upon determining that the external sound is to be made audible to the user, the method includes modifying the sound cancellation so that the identified external sound is made audible to the user. Various other methods, systems, and computer-readable media are also disclosed.

Abstract: The disclosed computer-implemented method may include establishing and implementing a virtual microphone. The method may include receiving an input specifying a location for a virtual microphone that is configured to capture audio as if located in the specified location. The method may next include initializing physical microphones to begin capturing audio as if located at the specified location. The physical microphones may be electronically or physically oriented to listen from the specified location. The method may then include combining audio streams from the physical microphones to generate a combined audio signal that sounds as if recorded at the specified location. Various other methods, systems, and computer-readable media are also disclosed.

Abstract: Calibration of a headset that uses bone conduction to provide audio content to a wearer is presented. A first tone of a plurality of tones that are at different frequencies is presented to the wearer via an air conduction transducer. A corresponding tone having a same frequency as the first tone is also presented to the wearer via a bone conduction (BC) transducer. The corresponding tone is adjusted such that a level of loudness is within a threshold range of a level of loudness of the first tone. An ear-canal sound pressure (ECSP) resulting from the first tone is recorded and a voltage applied to the BC transducer for generating the adjusted corresponding tone. An equalization filter is generated based in part on the ECSP and the voltage, the equalization filter for filtering an audio signal for presentation via the BC transducer.

Abstract: A method for manufacturing a cartilage conduction audio device is disclosed. A manufacturing system receives data describing a three-dimensional shape of an ear (e.g., the outer ear, behind the ear, the concha bowel, etc.) of a user. The system identifies one or more locations for one or more transducers along a back of an auricle of the ear for the user that vibrate the auricle over a frequency range causing the auricle to create an acoustic pressure wave at an entrance of the ear canal. The system then generates a design for a cartilage conduction audio device for the user based on the one or more identified locations of the transducers at which acoustic pressure waves generated by the one or more transducers satisfy a threshold performance metric for the user. The design may then be used to fabricate the cartilage conduction audio device.

Abstract: The disclosed computer-implemented method for performing natural language translation in AR may include accessing an audio input stream that includes words spoken by a speaking user in a first language. The method may next include performing active noise cancellation on the words in the audio input stream so that the spoken words are suppressed before reaching a listening user. Still further, the method may include processing the audio input stream to identify the words spoken by the speaking user, and translating the identified words spoken by the speaking user into a second, different language. The method may also include generating spoken words in the second, different language using the translated words, and replaying the generated spoken words in the second language to the listening user. Various other methods, systems, and computer-readable media are also disclosed.

Abstract: The disclosed computer-implemented method may include applying, via a sound reproduction system, sound cancellation that reduces an amplitude of various sound signals. The method further includes identifying, among the sound signals, an external sound whose amplitude is to be reduced by the sound cancellation. The method then includes analyzing the identified external sound to determine whether the identified external sound is to be made audible to a user and, upon determining that the external sound is to be made audible to the user, the method includes modifying the sound cancellation so that the identified external sound is made audible to the user. Various other methods, systems, and computer-readable media are also disclosed.

Abstract: The disclosed computer-implemented method may include establishing and implementing a virtual microphone. The method may include receiving an input specifying a location for a virtual microphone that is configured to capture audio as if located in the specified location. The method may next include initializing physical microphones to begin capturing audio as if located at the specified location. The physical microphones may be electronically or physically oriented to listen from the specified location. The method may then include combining audio streams from the physical microphones to generate a combined audio signal that sounds as if recorded at the specified location. Various other methods, systems, and computer-readable media are also disclosed.

Abstract: A system performs an optimization algorithm to optimize two or more acoustic sensors of a microphone array. The system obtains an array transfer function (ATF) for a plurality of combinations of the acoustic sensors of the microphone array. In a first embodiment, the algorithm optimizes an active set of acoustic sensors on the eyewear device. The plurality of combinations may be all possible combinations of subsets of the acoustic sensors that may be active. In a second embodiment, the algorithm optimizes a placement of two or more acoustic sensors on an eyewear device during manufacturing of the eyewear device. Each combination of acoustic sensors may represent a different arrangement of the acoustic sensors in the microphone array. In each embodiment, the system evaluates the obtained ATFs and, based on the evaluation, selects a combination of acoustic sensors for the microphone array.

Abstract: A method for manufacturing a cartilage conduction audio device is disclosed. A manufacturing system receives data describing a three-dimensional shape of an ear (e.g., the outer ear, behind the ear, the concha bowel, etc.) of a user. The system identifies one or more locations for one or more transducers along a back of an auricle of the ear for the user that vibrate the auricle over a frequency range causing the auricle to create an acoustic pressure wave at an entrance of the ear canal. The system then generates a design for a cartilage conduction audio device for the user based on the one or more identified locations of the transducers at which acoustic pressure waves generated by the one or more transducers satisfy a threshold performance metric for the user. The design may then be used to fabricate the cartilage conduction audio device.

Abstract: The disclosed computer-implemented method for performing directional beamforming according to an anticipated position may include accessing environment data indicating a sound source within an environment. The device may include various audio hardware components configured to generate steerable audio beams. The method may also include identifying the location of the sound source within the environment based on the accessed environment data, and then steering the audio beams of the device to the identified location of the sound source within the environment. Various other methods, systems, and computer-readable media are also disclosed.