Audio systems and method for perturbing signal compensation
First Claim
1. A vehicle cabin audio system comprising:
- a first speaker positioned to provide first audio content to a first seating position within a vehicle cabin based on an audio signal received from an audio signal source;
a second speaker positioned to provide second audio content to a second seating position within the vehicle cabin;
a first microphone assembly positioned to detect first speech content originating at the second seating position, leaked second audio content from the second speaker, and road noise;
a second microphone assembly positioned to detect at least second speech content originating at a third seating position, the second speech content being different from the first speech content, wherein each of the first microphone assembly and the second microphone assembly includes an array of microphones; and
audio signal processing circuitry coupled to at least the first microphone assembly and the second microphone assembly, the audio signal processing circuitry being configured to filter the leaked second audio content from the second speaker and the road noise to isolate the first speech content, and determine a perturbing signal based at least in part on a combination of the first speech content, the second speech content, the leaked second audio content from the second speaker, and the road noise, and wherein the audio signal processing circuitry is configured to adjust the audio signal to the first speaker based on a frequency of the audio signal to compensate for an effect of the perturbing signal on the first audio content at the first seating position.
1 Assignment
0 Petitions
Accused Products
Abstract
Audio systems and methods for providing intelligible audio content within a vehicle cabin. In one example, the audio system includes a first speaker to provide first audio content to a first seating position based on an audio signal received from an audio signal source, a second speaker to provide second audio content to a second seating position, a first microphone assembly positioned to detect speech content originating at the second seating position, leaked second audio content from the second speaker, and road noise, and audio signal processing circuitry configured to determine a perturbing signal based at least in part on a combination of the first speech content, the leaked second audio content, and the road noise, and adjust the audio signal to the first speaker to compensate for an effect of the perturbing signal on the first audio content at the first seating position.
23 Citations
22 Claims
-
1. A vehicle cabin audio system comprising:
-
a first speaker positioned to provide first audio content to a first seating position within a vehicle cabin based on an audio signal received from an audio signal source; a second speaker positioned to provide second audio content to a second seating position within the vehicle cabin; a first microphone assembly positioned to detect first speech content originating at the second seating position, leaked second audio content from the second speaker, and road noise; a second microphone assembly positioned to detect at least second speech content originating at a third seating position, the second speech content being different from the first speech content, wherein each of the first microphone assembly and the second microphone assembly includes an array of microphones; and audio signal processing circuitry coupled to at least the first microphone assembly and the second microphone assembly, the audio signal processing circuitry being configured to filter the leaked second audio content from the second speaker and the road noise to isolate the first speech content, and determine a perturbing signal based at least in part on a combination of the first speech content, the second speech content, the leaked second audio content from the second speaker, and the road noise, and wherein the audio signal processing circuitry is configured to adjust the audio signal to the first speaker based on a frequency of the audio signal to compensate for an effect of the perturbing signal on the first audio content at the first seating position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A vehicle cabin audio system comprising:
-
a first speaker positioned to provide first audio content to an occupant within a vehicle cabin based on an audio signal received from an audio signal source; a first microphone assembly positioned to detect first speech content originating at a first seating position within the vehicle cabin, second speech content originating at a second seating position within the vehicle cabin, road noise, and leaked audio content; a second microphone assembly positioned to detect at least the second speech content, the second speech content being different from the first speech content, wherein each of the first microphone assembly and the second microphone assembly includes an array of microphones; and audio signal processing circuitry coupled to each of the first and second microphone assemblies and configured to filter the leaked audio content and the road noise to isolate the first speech content, the audio signal processing circuitry being further configured to estimate at least a first speech signal for the first speech content originating at the first seating position and at least a second speech signal for the speech content originating at the second seating position, and wherein the audio signal processing circuitry is configured to adjust the audio signal to compensate for an effect of the estimated first speech signal for the first speech content, and the estimated second speech signal for the second speech content, on the first audio content. - View Dependent Claims (12, 13, 14, 15, 16)
-
-
17. A method of operating a vehicle cabin audio system, the method comprising:
-
providing first audio content to a first seating position within a vehicle cabin, with a first speaker, based on an audio signal received from an audio signal source; providing second audio content to a second seating position within the vehicle cabin with a second speaker; detecting, at a first microphone assembly, first speech content originating at the second seating position, leaked second audio content from the second speaker, and road noise; detecting, at a second microphone assembly, second speech content originating at a third seating position, the second speech content being different from the first speech content; filtering the leaked second audio content from the second speaker and the road noise to isolate the first speech content; determining a perturbing signal based at least in part on a combination of the first speech content, the second speech content, the leaked second audio content from the second speaker, and the road noise; and adjusting the audio signal based on a frequency of the audio signal to compensate for an effect of the perturbing signal on the first audio content at the first seating position. - View Dependent Claims (18, 19, 20, 21, 22)
-
Specification