Active Noise Reduction Control for Non-Occluding Wearable Audio Devices
Various implementations include audio devices and methods for noise reduction control in wearable audio devices and/or vehicle audio systems. Certain implementations include a method of controlling a noise cancelation (NC) setting at a vehicle audio system and an active noise reduction (ANR) setting at a non-occluding wearable audio device, the method comprising: adjusting at least one of the NC setting at the vehicle audio system or the ANR setting at the non-occluding wearable audio device in response to detecting the presence of the non-occluding wearable audio device in the vehicle.
1 . A method of controlling a noise cancelation (NC) setting at a vehicle audio system and an active noise reduction (ANR) setting at a non-occluding wearable audio device, the method comprising:
adjusting at least one of the NC setting at the vehicle audio system or the ANR setting at the non-occluding wearable audio device in response to detecting the presence of the non-occluding wearable audio device in the vehicle.
2 . The method of claim 1 , wherein adjusting the ANR setting includes applying a narrowband feedforward or feedback control to a noise signal at the non-occluding wearable audio device based on an input from a reference sensor, wherein the narrowband noise includes at least one of engine noise or motor harmonics.
3 . The method of claim 1 , wherein at least one of the NC setting or the ANR setting is associated with a seat location in the vehicle for application when a user is detected in the seat location.
4 . The method of claim 1 , wherein adjusting the ANR setting includes:
disabling a microphone cross-check with the NC system in response to detecting the presence of the non-occluding wearable audio device in the vehicle.
5 . The method of claim 1 , wherein adjusting the ANR setting includes:
buffering detected road noise in an audio output at the non-occluding wearable audio device.
6 . The method of claim 1 , wherein adjusting the NC system includes:
reducing headrest speaker commands in response to detecting user head movement to mitigate acoustic artifact detection at the non-occluding wearable audio device.
7 . The method of claim 1 , further comprising:
adjusting the NC setting and/or the ANR setting based on detecting a specific head location of a user of the non-occluding wearable audio device.
8 . The method of claim 1 , further comprising:
routing voice signals detected by the vehicle audio system to the non-occluding wearable audio device to enable in-vehicle communication.
9 . The method of claim 1 , further comprising:
streaming raw audio detected by at least one microphone in the non-occluding wearable audio device to the vehicle audio system for processing.
10 . The method of claim 1 , further comprising:
detecting an error state of the vehicle audio system using an acoustic input from at least one microphone in the non-occluding wearable audio device, and
providing an indicator of the error state to the vehicle audio system.
11 . The method of claim 1 , wherein in a first frequency band, an audio control system in the vehicle is engaged to reduce the detectable noise, and wherein in a second frequency band, a control system at the non-occluding wearable audio device is engaged to reduce the detectable noise.
12 . The method of claim 11 , wherein the first frequency band and the second frequency band exclude one another.
13 . The method of claim 11 , wherein the first frequency band is approximately 30 Hertz (Hz) to approximately 500 Hz and the second frequency band is approximately 500 Hz to approximately 3 kilo-Hertz (kHz).
14 . A non-occluding wearable audio device, comprising:
at least one electro-acoustic transducer;
at least one microphone; and
a control system coupled with the at least one electro-acoustic transducer and the at least one microphone, the control system programmed to:
adjust an active noise reduction (ANR) setting for audio output to the at least one electro-acoustic transducer in response to detecting use of the non-occluding wearable audio device in a vehicle.
15 . The audio device of claim 14 , wherein in a first frequency band, an audio control system in the vehicle is engaged to reduce detectable noise by a user in the vehicle, and wherein in a second frequency band, the control system at the non-occluding wearable audio device is engaged to reduce the detectable noise by the user in the vehicle.
16 . The audio device of claim 15 , wherein the first frequency band and the second frequency band overlap.
17 . The audio device of claim 15 , wherein the first frequency band and the second frequency band exclude one another.
18 . The audio device of claim 15 , wherein the control system is configured to control engagement and disengagement of a noise cancelation circuit in the audio control system in the vehicle based on detecting noise in the first frequency band or detecting noise in the second frequency band.
19 . The audio device of claim 14 , wherein the control system is further configured to provide data about a head position of a user of the non-occluding wearable audio device to an audio control system in the vehicle for reducing detectable noise in the vehicle.
20 . The audio device of claim 14 , wherein the control system is further configured to receive data about a vehicle usage parameter from an audio control system in the vehicle for adjusting the ANR setting.