Sensor management for wireless devices
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.
1. A method for selecting one or more audio capture sensors of wearable devices, the method comprising:
detecting a first signal corresponding with a user's voice using at least one audio capture sensor of a first wearable device, wherein the first wearable device is connected to a peripheral device via a first wireless connection;
detecting a second signal corresponding with the user's voice using at least one audio capture sensor of a second wearable device, wherein the second wearable device is connected to the peripheral device via a second wireless connection, wherein the second wearable device is wirelessly connected to the first wearable device via a third wireless connection, and wherein the third wireless connection is a Bluetooth connection;
sending first voice data from the first wearable audio device to the peripheral device via the first wireless connection; and
in response to determining that the second signal has a higher signal-to-noise ratio than the first signal, sending second voice data from the second wearable audio device to the peripheral device via the second wireless connection.
2. The method of claim 1 , wherein the determining that the second signal has a higher signal-to-noise ratio than the first signal is performed by the first wearable device.
3. The method of claim 1 , wherein the determining that the second signal has a higher signal-to-noise ratio than the first signal is performed by the second wearable device.
4. The method of claim 1 , wherein the determining that the second signal has a higher signal-to-noise ratio than the first signal is performed by the peripheral device.
5. The method of claim 1 , wherein the first wearable device is intended to fit around, on, in, or near a first ear of the user, and the second wearable device is intended to fit around, on, in, or near a second ear of the user.
6. The method of claim 1 , further comprising, in response to determining that the second signal has a higher signal-to-noise ratio than the first signal, causing a role switch from the first wearable device being a primary device to the second wearable device being the primary device.
7. The method of claim 1 , wherein the determining that the second signal has a higher signal-to-noise ratio includes comparing energy levels of the first and second signals to determine that the first signal has higher energy levels than the second signal, and wherein the first signal has higher energy levels than the second signal due to a higher wind presence in the first signal than the second signal.
8. The method of claim 1 , wherein when the second wearable audio device sends the further second voice data to the peripheral device, the first wearable device no longer sends the first voice data to the peripheral device via the first wireless connection.
9. The method of claim 1 , wherein the at least one audio capture sensor of the first wearable device and the at least one audio capture sensor of the second wearable device are selected from at least one of a feedback microphone that is also used for acoustic noise reduction (ANR) purposes, a feedforward microphone that is also used for ANR purposes, or an accelerometer.
10. The method of claim 1 , further comprising, in response to determining that the second signal has a higher signal-to-noise ratio than the first signal, sending the first voice data from the first wearable audio device to the second wearable device via the third wireless connection, and then further sending the first voice data from the second wearable device to the peripheral device via the second wireless connection.
11. A system comprising:
a first wearable device that includes at least one audio capture sensor configured to detect a first signal corresponding with a user's voice, wherein the first wearable device is connected to a peripheral device via a first wireless connection;
a second wearable device that includes at least one audio capture sensor configured to detect a second signal corresponding with the user's voice, wherein the second wearable device is connected to the peripheral device via a second wireless connection, wherein the second wearable device is wirelessly connected to the first wearable device via a third wireless connection, and wherein the third wireless connection is a Bluetooth connection; and
non-transitory computer readable instructions executed by at least one processor of the first wearable device and/or the second wearable device, the instructions configured to
cause the first wearable device to send first voice data to the peripheral device via the first wireless connection, and
in response to determining that the second signal has a higher signal-to-noise ratio than the first signal, cause the second wearable device to send second voice data to the peripheral device via the second wireless connection.
12. The system of claim 11 , wherein the determining that the second signal has a higher signal-to-noise ratio than the first signal is performed by the at least one processor of the first wearable device.
13. The system of claim 11 , wherein the determining that the second signal has a higher signal-to-noise ratio than the first signal is performed by the at least one processor of the second wearable device.
14. The system of claim 11 , wherein the determining that the second signal has a higher signal-to-noise ratio than the first signal is performed by at least one processor of the first wearable device and at least one processor of the second wearable device.
15. The system of claim 11 , wherein the first wearable device is intended to fit around, on, in, or near a first ear of the user, and the second wearable device is intended to fit around, on, in, or near a second ear of the user.
16. The system of claim 11 , wherein the instructions are further configured to, in response to determining that the second signal has a higher signal-to-noise ratio than the first signal, cause a role switch from the first wearable device being a primary device to the second wearable device being the primary device.
17. The system of claim 11 , wherein the determining that the second signal has a higher signal-to-noise ratio includes comparing energy levels of the first and second signals to determine that the first signal has higher energy levels than the second signal, and wherein the first signal has higher energy levels than the second signal due to a higher wind presence in the first signal than the second signal.
18. The system of claim 11 , wherein when the second wearable audio device sends the second voice data to the peripheral device, the instructions are further configured to stop the first wearable device from sending the first voice data to the peripheral device via the first wireless connection.
19. The system of claim 11 , wherein the at least one audio capture sensor of the first wearable device and the at least one audio capture sensor of the second wearable device are selected from at least one of a feedback microphone that is also used for acoustic noise reduction (ANR) purposes, a feedforward microphone that is also used for ANR purposes, or an accelerometer.
20. The system of claim 11 , wherein the non-transitory computer readable instructions are further configured to, in response to determining that the second signal has a higher signal-to-noise ratio than the first signal, sending the first voice data from the first wearable audio device to the second wearable device via the third wireless connection, and then further sending the first voice data from the second wearable device to the peripheral device via the second wireless connection.