Abstract: Various implementations include approaches for establishing a Bluetooth (BT) connection between devices. One example approach includes: in response to a BT trigger at a first BT device, attempting to determine a received signal strength indicator (RSSI) from a set of additional BT devices paired to the first BT device; if an RSSI from a first additional BT device is a highest RSSI from the set and exceeds an RSSI from a second additional BT device with a second-highest RSSI by a threshold, selecting the first additional BT device for connection with the first BT device; and if a difference between the RSSI from the first additional BT device and the RSSI from the second additional BT devices does not exceed the threshold, selecting either the first additional BT device or the second additional BT device for connection based on a BT connection hierarchy.

Abstract: Various implementations include approaches for establishing a Bluetooth (BT) connection between devices. One example approach includes: in response to a trigger at a first Bluetooth (BT) device, attempting to determine a received signal strength indicator (RSSI) from each of a set of additional Bluetooth (BT) devices paired to the first BT device, in response to determining the RSSI for a first additional BT device and a second additional BT device in the set of additional BT devices, determining if the RSSI of each of the first additional BT device and the second additional BT device satisfies a threshold, and in response to determining that the RSSI of both the first additional BT device and the second additional BT device satisfy the threshold, selecting either the first additional BT device or the second additional BT device for connection with the first BT device.

Abstract: Various implementations include approaches for establishing a Bluetooth (BT) connection between devices. One example approach includes: in response to a BT trigger at a first BT device, attempting to determine a received signal strength indicator (RSSI) from a set of additional BT devices paired to the first BT device; if an RSSI from a first additional BT device is a highest RSSI from the set and exceeds an RSSI from a second additional BT device with a second-highest RSSI by a threshold, selecting the first additional BT device for connection with the first BT device; and if a difference between the RSSI from the first additional BT device and the RSSI from the second additional BT devices does not exceed the threshold, selecting either the first additional BT device or the second additional BT device for connection based on a BT connection hierarchy.

Abstract: Various implementations include approaches for establishing a Bluetooth (BT) connection between devices. One example approach includes: in response to a trigger at a first Bluetooth (BT) device, attempting to determine a received signal strength indicator (RSSI) from each of a set of additional Bluetooth (BT) devices paired to the first BT device, in response to determining the RSSI for a first additional BT device and a second additional BT device in the set of additional BT devices, determining if the RSSI of each of the first additional BT device and the second additional BT device satisfies a threshold, and in response to determining that the RSSI of both the first additional BT device and the second additional BT device satisfy the threshold, selecting either the first additional BT device or the second additional BT device for connection with the first BT device.

Abstract: Various aspects include wearable audio devices and related systems. In particular implementations, a wearable audio device includes: a base having: an acoustic transducer; a controller coupled with the acoustic transducer; and terminals for connecting a power source; and a first cap including: an antenna; and a battery including terminals for connecting with the terminals in the base, where the first cap is removably coupled to the base.

Abstract: Various implementations include approaches for establishing a Bluetooth (BT) connection between devices. One example approach includes: in response to a trigger at a first BT device, attempting to determine a received signal strength indicator (RSSI) of a second BT device paired to the first BT device, the second BT device having a highest priority on a list of one or more BT devices paired to the first BT device; in response to determining the RSSI for the second BT device, determining if the RSSI of the second BT device satisfies a threshold; and in response to determining that the RSSI of the second BT device satisfies the threshold, attempting to establish a BT connection between the first BT device and the second BT device.

Abstract: Various implementations include approaches for training a surface detection classifier and detecting characteristics of a surface, along with related micromobility vehicles. Certain implementations include a method including: comparing: i) detected movement of a micromobility (MM) vehicle or a device located with a user at the MM vehicle while operating the MM vehicle, with ii) a surface detection classifier for the MM vehicle; and in response to detecting that the MM vehicle is traveling on a restricted surface type for a threshold period, performing at least one of: a) notifying an operator of the MM vehicle about the travel on the restricted surface type, b) outputting a warning at an interface connected with the MM vehicle or the device, c) limiting a speed of the MM vehicle, or d) disabling operation of the MM vehicle.

Abstract: Various implementations include approaches for establishing a Bluetooth (BT) connection between devices. One example approach includes: in response to a trigger at a first BT device, attempting to determine a received signal strength indicator (RSSI) of a second BT device paired to the first BT device, the second BT device having a highest priority on a list of one or more BT devices paired to the first BT device; in response to determining the RSSI for the second BT device, determining if the RSSI of the second BT device satisfies a threshold; and in response to determining that the RSSI of the second BT device satisfies the threshold, attempting to establish a BT connection between the first BT device and the second BT device.

Abstract: A method is provided for detecting at least one fitness related activity is provided. Data is obtained from at least one sensor of a wearable device, wherein the at least one sensor detects the data based on at least one body movement of a user wearing the wearable device. Based on the obtained data, the at least one fitness related activity is detected from a set of fitness related activities, wherein the detection is performed without pre-training by the user for the detecting.

Abstract: Various implementations include approaches for training a surface detection classifier and detecting characteristics of a surface, along with related micromobility vehicles. Certain implementations include a method including: comparing: i) detected movement of a micromobility (MM) vehicle or a device located with a user at the MM vehicle while operating the MM vehicle, with ii) a surface detection classifier for the MM vehicle; and in response to detecting that the MM vehicle is traveling on a restricted surface type for a threshold period, performing at least one of: a) notifying an operator of the MM vehicle about the travel on the restricted surface type, b) outputting a warning at an interface connected with the MM vehicle or the device, c) limiting a speed of the MM vehicle, or d) disabling operation of the MM vehicle.

Abstract: Various aspects include wearable audio devices and related systems. In particular implementations, a wearable audio device includes: a base having: an acoustic transducer; a controller coupled with the acoustic transducer; and terminals for connecting a power source; and a first cap including: an antenna; and a battery including terminals for connecting with the terminals in the base, where the first cap is removably coupled to the base.

Abstract: Various implementations include wearable audio devices and related methods for controlling such devices. In some particular implementations, a computer-implemented method of controlling a wearable audio device configured to provide an audio output includes: receiving data indicating the wearable audio device is proximate a geographic location associated with a localized audio message; providing a prompt to initiate playback of the localized audio message to a user of the wearable audio device; and initiating playback of the localized audio message at the wearable audio device in response to actuation of the prompt by the user.

Abstract: A method is provided for detecting at least one fitness related activity is provided. Data is obtained from at least one sensor of a wearable device, wherein the at least one sensor detects the data based on at least one body movement of a user wearing the wearable device. Based on the obtained data, the at least one fitness related activity is detected from a set of fitness related activities, wherein the detection is performed without pre-training by the user for the detecting.

Abstract: Methods and apparatus are provided for an open ear audio device outputting audio using an external audio speaker, bone conduction speaker, or both an external audio speaker and bone conduction speaker. In an aspect, sound is output using either the audio speaker or the bone conduction speaker based on the type of sound. Audio the user desires to keep private are configured to be output using the bone conduction speaker. In an aspect, the audio device simultaneously outputs a first sound using the audio speaker and a second sound using the bone conduction speaker. The user receives both streams of audio and selects which sound to focus on. In an aspect, the audio device determines how to output audio based on the SPL of the user's environment.

Abstract: Methods and apparatus are provided for an open ear audio device outputting audio using an external audio speaker, bone conduction speaker, or both an external audio speaker and bone conduction speaker. In an aspect, sound is output using either the audio speaker or the bone conduction speaker based on the type of sound. Audio the user desires to keep private are configured to be output using the bone conduction speaker. In an aspect, the audio device simultaneously outputs a first sound using the audio speaker and a second sound using the bone conduction speaker. The user receives both streams of audio and selects which sound to focus on. In an aspect, the audio device determines how to output audio based on the SPL of the user's environment.

Abstract: Various implementations include wearable audio devices and related methods for controlling such devices. In some particular implementations, a computer-implemented method of controlling a wearable audio device configured to provide an audio output includes: receiving data indicating the wearable audio device is proximate a geographic location associated with a localized audio message; providing a prompt to initiate playback of the localized audio message to a user of the wearable audio device; and initiating playback of the localized audio message at the wearable audio device in response to actuation of the prompt by the user.

Abstract: A mobile computing device that is configured to wirelessly transmit audio data to an audio sink device. The mobile computing device has a wired audio input connector that is constructed and arranged to accept input audio data from an audio data source that is directly electrically coupled to the wired audio input connector. The mobile computing device includes circuitry that is configured to route the input audio data to the audio sink by wireless transmission. When input audio data is available from the audio input connector, the circuitry is configured to determine whether to route the audio input data to the audio sink device.

Abstract: An audio device capable of intelligently switching between multiple antennas is provided. The audio device receives a wireless signal by a default receiving antenna, determines signal quality metrics of the wireless signal received by various antennas, compares the signal quality metrics of the wireless signal received by the various antennas, and selects a receiving antenna from the various antennas to receive the wireless signal based on the comparison of the signal quality metrics of the wireless signal received by the various antennas.

Abstract: A wireless audio device tethering system is provided for including an intermediary device having at least one wireless transceiver that is configured to establish a first wireless connection with a first wireless audio device and a second wireless connection with a second wireless audio device. The intermediary device is also configured to receive a unique identifier from the second wireless audio device and to transmit the unique identifier to the first wireless audio device in order to initiate wireless tethering between the first and second wireless audio device. Once tethering has been initiated, wireless audio signals can be streamed to the first wireless audio device and then re-streamed to the second wireless audio device.

Abstract: An electronic device includes a processor and a memory coupled to the processor. The memory stores instructions that, when executed by the processor, cause the processor to perform operations including determining whether a text prompt received from a wireless device corresponds to first synthesized speech data stored at the memory. The operations include, in response to a determination that the text prompt does not correspond to the first synthesized speech data, determining whether a network is accessible. The operations include, in response to a determination that the network is accessible, sending a text-to-speech (TTS) conversion request to a server via the network. The operation further include, in response to receiving second synthesized speech data from the server, storing the second synthesized speech data at the memory.