Bose Corporation

Nathan A Blagrove

Somasundaram Meiyappan

Alaganandan Ganeshkumar

Casper Stork Bonde

Rasmus Abildgren

Douglas Warren Young

Pepin Torres

Naganagouda B Patil

Santiago Carvajal

Eric John Freeman

Guy A Torio

James Tracey

Francois Laberge

Joji Ueda

Marko Orescanin

Graeme Reed

Rodrigo Sartorio Gomes

Joshua James Deane

Stephen Andrew McDonald

Matthew Evan Leon

Isaac Julien

Eugene Zarkhin

Anuj Dutt

Prakash Manandhar

Ayan Agrawal

Nb Patil

Ranbir Kandola

Sara Sarkhili

Casper Bonde

Processes, methods, systems, and devices are disclosed for synchronizing wirelessly transmitted captured audios to audio output. In an aspect, a user device transmits an audio output associated with the audio playback to a wireless audio device. The user device receives a feedback signal corresponding to the audio output played at the wireless audio device. The user device further receives a captured audio from the wireless audio device. The user device synchronizes the captured audio with the audio output based on the feedback signal. For example, the audio output may be an instrumental soundtrack and the captured audio may be a recording of the user's singing in response to the instrumental soundtrack. In other examples, the audio output may be a soundtrack from a video playback or live streaming. The captured audio may be a commentary or a response to the video playback or the live streaming.

Synchronizing bluetooth data capture to data playback

A system and method for selecting audio capture sensors of wearable devices in obtaining voice data. The method provides obtaining signals associated with the user's voice at first and second wearable devices, comparing energy levels of the first and second signals, and selecting one or more audio capture sensors based on the energy levels of each signal. Due to the symmetry of the acoustic energy produced by the user's voice to a first and second wearable device, any difference in energy level between the total energy obtained by the first wearable device and the total energy obtained by the second wearable device can be attributed solely to ambient noise. Thus, the device with the higher total energy has a lower signal-to-noise ratio and selection of an audio capture sensor of the other wearable device with a higher signal-to-noise ratio is provided to obtain voice data moving forward.

Sensor management for wireless devices

Various implementations include audio systems and methods for mixed rendering to enhance audio output. Certain implementations include an audio system having: at least one far-field speaker configured to output a first portion of an audio signal; and a pair of non-occluding near-field speakers configured to output a second portion of the audio signal in synchrony with the output of the first portion of the audio signal, where the second portion of the audio signal increases intelligibility of the speech content within the audio signal.

Audio system with mixed rendering audio enhancement

The disclosed systems and method provide for an audio playback device to form a Bluetooth connection with an audio source device based on audio generated by an acoustic transducer. The audio is encoded with Bluetooth connectivity data corresponding to the audio source device. The acoustic transducer can be arranged on the audio source device, or it can be arranged on an audio playback device connected to the audio source device via a Bluetooth connection. The audio is received by a microphone of an audio playback device. The audio playback device then extracts the Bluetooth connectivity information from the audio, and forms a Bluetooth connection with the audio source device. If the Bluetooth connection is a Broadcast Audio stream, as defined by the LE Audio standard, multiple audio playback devices can be able to connect audio source device, allowing for a communal listening experience.

Audio-based near field communication

Methods and systems for easily establishing or switching between wireless connections by sending a Bluetooth Low-Energy (BLE) command from a first BLE enabled device to a second BLE enabled device, where the BLE command causes the second BLE enabled device to attempt to establish a Bluetooth Classic connection with one or more source devices from a list of source devices that have previously been paired with the second BLE device. The first BLE device is configured to obtain or receive the list from the second BLE device, and in response to one or more triggers, send the BLE command. The list of previously paired source devices may be presented to a user via a display screen with touch-screen functionality, and in some examples, may utilize one or more algorithms to intelligently order the available source devices based on a variety of factors.

Methods for improving wireless connections for previously paired devices

A method performed by a wearable audio output device worn by a user is provided for controlling external noise attenuated by wearable audio output device. A speech is detected from a user wearing the wearable audio output device, wherein the audio output device has active noise reduction turned on. It is determined, based on the detecting, that the user desires to speak to a subject in the vicinity of the user. In response to the determining, a level of noise reduction is reduced to enable the user to hear sounds external to the audio output device. It is determined that the user desires to speak to the subject by detecting at least one condition of a plurality of conditions.

Automatic active noise reduction (ANR) control to improve user interaction

Various implementations include audio systems and methods for mixed rendering to enhance audio output. Certain implementations include an audio system having: at least one far-field speaker configured to output a first portion of an audio signal; and a pair of non-occluding near-field speakers configured to output a second portion of the audio signal in synchrony with the output of the first portion of the audio signal, where the first portion of the audio signal is distinct from the second portion of the audio signal.

Systems and methods for broadcasting wireless data via one or more retransmission schemes to increase the packet reception in a wireless system. One or more devices of the system are configured to listen for an initial data packet from a source device. Should one or more devices successfully receive the initial packet, each device that received the packet can unconditionally retransmit a copy of the payload of the initial packet such that any device that failed to receive the initial packet payload has an opportunity to receive it during the respective retransmissions. Similarly, each device of the system can send acknowledgements to the other system devices that indicate whether they received the initial packet. Should one or more of the devices successfully receive the initial packet, the devices can conditionally retransmit a copy of the missing payload when one or more devices indicates they have failed to receive it.

Robust broadcast via relayed retransmission

Processes, methods, systems, and devices are disclosed for synchronizing multiple wireless data streams captured in action by various sensors, with lost data recovery. For example, a source device may have multiple sensors acquiring data and sending the data streams (e.g., via Bluetooth connections) to a target device. Timing information may be appended for each of the data streams. Data packets of the multiple data streams may be formed with the timing information. The data packets may be transmitted to a target device that is configured to synchronize the multiple data streams using the timing information. The target device, applying the example processes or techniques of this disclosure, may accurately synchronize the multiple data streams. In some cases, the target device may capture additional data streams and the processor synchronizes all data streams of both the source and the target devices.

Capturing and synchronizing data from multiple sensors

Systems and methods for detecting gestures using ultrasonic clicks are described. For example, some methods include playing an ultrasonic click using an audio driver, wherein the ultrasonic click is a modulated audio pulse with a duration less than one hundred periods of a modulation frequency waveform of the ultrasonic click; accessing a recording, captured using a microphone, of the ultrasonic click; applying an ultrasonic bandpass filter to the recording to obtain a filtered signal; determining a classification of a gesture based on the filtered signal; and transmitting, storing, or displaying an indication of the classification of the gesture.

Gesture detection using ultrasonic clicks

An audio system and method for data management including establishing a first connection between a first wearable audio device and a first peripheral device, the first wearable device or the first peripheral device being operational in a critical listening state and a non-critical listening state; establishing, when the first wearable audio device or the first peripheral device is in the critical listening state, a first data stream within the first connection, the first data stream established using a first communication protocol, the first communication protocol having an audio-centric data slot template; and, establishing, when the first wearable device or the first peripheral device is in the non-critical listening state, the first data stream within the first connection, the first data stream established using the first communication protocol, the first communication protocol having a voice-centric data slot template.

Growing community of inventors

Wayland, MA, United States of America

Nathan A Blagrove